RentRedi

rentredi

Build a Web3 Movie Streaming dApp using NextJs, Tailwind, and Sia Renterd

NextJs, Tailwind, এবং Sia Renterd ব্যবহার করে একটি Web3 মুভি স্ট্রিমিং dApp তৈরি করুন

Erstellen Sie eine Web3-Film-Streaming-dApp mit NextJs, Tailwind und Sia Renterd

Cree una aplicación de transmisión de películas Web3 con NextJs, Tailwind y Sia Renterd

Créez une dApp de streaming de films Web3 à l'aide de NextJs, Tailwind et Sia Renterd

NextJs, Tailwind और Sia Renterd का उपयोग करके Web3 मूवी स्ट्रीमिंग dApp बनाएं

NextJs、Tailwind、Sia Renterd を使用して Web3 映画ストリーミング dApp を構築する

NextJs, Tailwind 및 Sia Renterd를 사용하여 Web3 영화 스트리밍 dApp 구축

Crie um dApp de streaming de filmes Web3 usando NextJs, Tailwind e Sia Renterd

Создание dApp для потоковой передачи фильмов Web3 с использованием NextJs, Tailwind и Sia Renterd

NextJs, Tailwind ve Sia Renterd kullanarak bir Web3 Film Akışı dApp'i oluşturun

Xây dựng ứng dụng phát trực tuyến phim Web3 bằng NextJs, Tailwind và Sia Renterd

使用 NextJs、Tailwind 和 Sia Renterd 构建 Web3 电影流媒体 dApp

Beware of the possible presence of hidden cameras in hotels and rental homes. Let's go into the details and see how to find out if someone spies on us. Struggling with the various commitments of daily life, starting from family ones up to work ones, sometimes everyone just wants to want to finally unplug and spend some moments, possibly in fabulous places. relaxing At the same time, of course, one cannot help but think about the economic outlay that the holidays bring with them. If all this were not enough, there is another aspect that often raises more than a few concerns, namely that of . privacy In particular, many fear the presence of possible hidden cameras in their hotel room or when they decide to stay, for example, in an apartment rented through Airbnb. Well, precisely in this context, therefore, it will be interesting to know that there are some valid to which you can find out if someone is spying on us. All using only your smartphone. tricks How Is it Possible? So, let's go into the details and see everything there is to know about it. Hidden Cameras in Hotels and Rental Homes; Beware: What You Need to Know Today, we will focus our attention on the possible presence of hidden cameras in hotels or rented houses, for example, through . Airbnb We thank the Russian company , which specializes in security because they recently disclosed some tricks that can be used in order to be able to discover (you can check it in fact, the presence of technological tools through which they spy on us. Kaspersky ) here How to Find Them With Your Smartphone : In order to avoid having to deal with possible prying eyes, all you have to do is use your . smartphone How is it possible? Well, here are some of the useful tricks to be able to discover any hidden cameras: . All you have to do is turn off all the lights in the room or the apartment room and close the windows to remain in the dark. At that point, you have to position yourself near the point in the room where you think there may be a camera and turn on the flashlight of your smartphone together with the camera. Smartphone flashlight If there is a hidden camera, then, we will see a glow coming from it. In this way, we will be able to find out if there are hidden cameras or not. . As an alternative to the flashlight, you can use the camera of your mobile device. Thanks to the latter it is possible to trace the infrared lighting that we would not be able to see with the naked eye. Smartphone camera On the other hand, we invite you to pay attention because, in the event that the camera does not have infrared, unfortunately, we will not be able to identify the device we are looking for. . Finally, we recommend using one of the applications that can detect reflections from a lens or a wireless light. These include several apps, available completely free of charge, for both iOS and Android devices, such as Glint Finder or Hidden Camera Detector. Applications What to do Next In the event that your suspicions are confirmed, and it’s an apartment rented with Airbnb, then it is possible to request a . This is always in the event that the cameras have not previously been reported and inserted, as tools already present inside the house itself. refund If, on the other hand, you find hidden cameras in a hotel room, you have . to contact the management of the structure or the police Being able to check if there are hidden cameras in a hotel room or a rented apartment is possible. All you have to do is use one of the aforementioned tricks and that's it.

Hidden Cameras in Hotels and Rented Houses: How to Find Out if Someone Is Spying on You

#throwback to scrappy 2012… this post is an answer the Quora question: “ What are the challenges of living in rented office space in San Francisco? ” As Bruce Feldman suggested, living in an might be detrimental to your health. But weren’t those high-rise, asbestos insulated, moldy dorms unhealthy during college? office In the hunt for your office space/ , you should look for an office with the following characteristics: apartment 24 Hour Access The office being open 24/7 is crucial. You never want to be trapped in your office at night. Luckily, the majority of offices have 24 hour access. A small percentage of offices have showers; if your office doesn’t have a shower, make sure you have ‘round the clock access and go shower at the nearest gym. Private Room with a Door Here’s why: Close the door, draw your office curtains and turn in. Better than sleeping in common areas or open spaces where you have to stay up until everyone else is gone. Go to sleep when you want without people noticing. Usually focused on common areas and entry ways, cameras are practically never in private rooms. Know the path that avoids the cameras and gets you to the bathroom at night. Otherwise stay in your office until morning . Offices have cameras. (and put a bucket in the corner or something) In order to pull this off, you need to be a minimalist. You can’t own a lot of stuff. You should own 3–4 shirts, a couple pairs of pants, undergarments, a pair of shoes/sandals, your computer, your shower/bathroom kit, one pillow, one sleeping bag (you are camping bud), and a sleeping mat (go to REI) and that’s about it. Storage is important. You won’t be able to store this meager assortment of goods in the small locker that you are renting at your gym… unless you join a higher end gym that actually does laundry and has decent sized lockers (e.g. Equinox). But that’s a lot of extra cost. Storage. Bring “friends” back to the office… ahem, everybody needs private time Relaxed Decorating Standards Get a couple of cardboard boxes for storage. You must be able to close the boxes to hide your clothes and sleeping gear. If anyone ever discovers your gear and asks you about it, just say that you store your Yosemite camping gear at the office. For your desk, save money and buy two saw horses or get concrete blocks. Get an old door and set it on the concrete blocks/sawhorses and lean it up against the wall. These are known as “artist desks” or drafting desks. Should cost you $25–50 total. Find a chair. Done. *Note, when questioned about your spartan office decor, just say “I’m bootstrapping.” They will nod knowingly and complement you on your frugality Here’s an example of desk and sleeping setup: (picture of the apartment, located in Austin at 8th and Brazos, that my co-founder and I shared in 2012… this is the kind of minimalism you should strive for) Clean Air (so you can rest) The air must be clean and breathable. Mold or dust will be bad for your health and disrupt your sleep. An air purifier can help but try to go with an office that has good air. If your office space has these characteristics and you are careful, you will not get caught. Good luck.

How to Live in Rented Office Space in San Francisco

Table of Links Abstract and 1. Introduction 2 The Original GPT4All Model 2.1 Data Collection and Curation 2.2 Model Training, 2.3 Model Access and 2.4 Model Evaluation 3 From a Model to an Ecosystem 3.1 GPT4All-J: Repository Growth and the implications of the LLaMA License 3.2 GPT4All-Snoozy: the Emergence of the GPT4All Ecosystem 3.3 The Current State of GPT4All 4 The Future of GPT4All Limitations and References 2.2 Model Training The original GPT4All model was a fine tuned variant of LLaMA 7B. In order to train it more efficiently, we froze the base weights of LLaMA, and only trained a small set of LoRA (Hu et al., 2021) weights during the fine tuning process. Detailed model hyper-parameters and training code can be found in our associated code repository[1]. 2.3 Model Access We publicly released all data, training code, and model weights for the community to build upon. Further, we provided a 4-bit quantized version of the model, which enabled users to run it on their own commodity hardware without transferring data to a 3rd party service. Our research and development costs were dominated by ∼$800 in GPU spend (rented from Lambda Labs and Paperspace) and ∼$500 in OpenAI API spend. Our final GPT4All model could be trained in about eight hours on a Lambda Labs DGX A100 8x 80GB for a total cost of ∼$100. 2.4 Model Evaluation We performed a preliminary evaluation of our model using the human evaluation data from the Self Instruct paper (Wang et al., 2023). We reported the ground truth perplexity of our model against what was, to our knowledge, the best openly available alpaca-lora model at the time, provided by user chainyo on HuggingFace. Both models had very large perplexities on a small number of tasks, so we reported perplexities clipped to a maximum of 100. We found that GPT4All produces stochastically lower ground truth perplexities than alpaca-lora (Anand et al., 2023). This paper is available on arxiv under CC BY 4.0 DEED license. [1] https://github.com/nomic-ai/gpt4all Authors:
(1) Yuvanesh Anand, Nomic AI, yuvanesh@nomic.ai;
(2) Zach Nussbaum, Nomic AI, zach@nomic.ai;
(3) Adam Treat, Nomic AI, adam@nomic.ai;
(4) Aaron Miller, Nomic AI, aaron@nomic.ai;
(5) Richard Guo, Nomic AI, richard@nomic.ai;
(6) Ben Schmidt, Nomic AI, ben@nomic.ai;
(7) GPT4All Community, Planet Earth;
(8) Brandon Duderstadt, Nomic AI, brandon@nomic.ai with Shared Senior Authorship;
(9) Andriy Mulyar, Nomic AI, andriy@nomic.ai with Shared Senior Authorship. Table of Links Abstract and 1. Introduction Abstract and 1. Introduction 2 The Original GPT4All Model 2 The Original GPT4All Model 2.1 Data Collection and Curation 2.2 Model Training, 2.3 Model Access and 2.4 Model Evaluation 2.2 Model Training, 2.3 Model Access and 2.4 Model Evaluation 3 From a Model to an Ecosystem 3.1 GPT4All-J: Repository Growth and the implications of the LLaMA License 3.1 GPT4All-J: Repository Growth and the implications of the LLaMA License 3.2 GPT4All-Snoozy: the Emergence of the GPT4All Ecosystem 3.2 GPT4All-Snoozy: the Emergence of the GPT4All Ecosystem 3.3 The Current State of GPT4All 3.3 The Current State of GPT4All 4 The Future of GPT4All 4 The Future of GPT4All Limitations and References Limitations and References 2.2 Model Training The original GPT4All model was a fine tuned variant of LLaMA 7B. In order to train it more efficiently, we froze the base weights of LLaMA, and only trained a small set of LoRA (Hu et al., 2021) weights during the fine tuning process. Detailed model hyper-parameters and training code can be found in our associated code repository[1]. 2.3 Model Access We publicly released all data, training code, and model weights for the community to build upon. Further, we provided a 4-bit quantized version of the model, which enabled users to run it on their own commodity hardware without transferring data to a 3rd party service. Our research and development costs were dominated by ∼$800 in GPU spend (rented from Lambda Labs and Paperspace) and ∼$500 in OpenAI API spend. Our final GPT4All model could be trained in about eight hours on a Lambda Labs DGX A100 8x 80GB for a total cost of ∼$100. 2.4 Model Evaluation We performed a preliminary evaluation of our model using the human evaluation data from the Self Instruct paper (Wang et al., 2023). We reported the ground truth perplexity of our model against what was, to our knowledge, the best openly available alpaca-lora model at the time, provided by user chainyo on HuggingFace. Both models had very large perplexities on a small number of tasks, so we reported perplexities clipped to a maximum of 100. We found that GPT4All produces stochastically lower ground truth perplexities than alpaca-lora (Anand et al., 2023). This paper is available on arxiv under CC BY 4.0 DEED license. This paper is available on arxiv under CC BY 4.0 DEED license. available on arxiv [1] https://github.com/nomic-ai/gpt4all Authors: (1) Yuvanesh Anand, Nomic AI, yuvanesh@nomic.ai; (2) Zach Nussbaum, Nomic AI, zach@nomic.ai; (3) Adam Treat, Nomic AI, adam@nomic.ai; (4) Aaron Miller, Nomic AI, aaron@nomic.ai; (5) Richard Guo, Nomic AI, richard@nomic.ai; (6) Ben Schmidt, Nomic AI, ben@nomic.ai; (7) GPT4All Community, Planet Earth; (8) Brandon Duderstadt, Nomic AI, brandon@nomic.ai with Shared Senior Authorship; (9) Andriy Mulyar, Nomic AI, andriy@nomic.ai with Shared Senior Authorship. Authors: Authors: (1) Yuvanesh Anand, Nomic AI, yuvanesh@nomic.ai; (2) Zach Nussbaum, Nomic AI, zach@nomic.ai; (3) Adam Treat, Nomic AI, adam@nomic.ai; (4) Aaron Miller, Nomic AI, aaron@nomic.ai; (5) Richard Guo, Nomic AI, richard@nomic.ai; (6) Ben Schmidt, Nomic AI, ben@nomic.ai; (7) GPT4All Community, Planet Earth; (8) Brandon Duderstadt, Nomic AI, brandon@nomic.ai with Shared Senior Authorship; (9) Andriy Mulyar, Nomic AI, andriy@nomic.ai with Shared Senior Authorship.

GPT4All: Model Training, Model Access, and Model Evaluation

Picture this: you go to a protest these days, and you find a lot of people wearing white, bearded masks. Maybe the hacktivist group Anonymous comes to your mind. Maybe V for Vendetta. Maybe even the historical root, Guy Fawkes —a man who died over 400 years ago in old England. But do you know why are they all connected as a symbol of rebellion or even anarchism? Should you wear your own mask too? Well. Let’s explore this story in chronological order, shall we? If you must know it now, it includes a murder attempt plot, explosives, a dystopian world, and somehow ends up with modern online anarchism and protests worldwide. Cryptos have been in the mix too since they appeared in 2009. Old Historical Facts “Remember, remember, the 5th of November, Gunpowder, treason and plot.” This is an English folk rhyme that dates back to the 17th century and has firmly stayed in popular imagery ever since. You see, that century wasn’t catholic-friendly at all in England. In case you didn’t know, there was a thing called European Wars of Religion that went on for centuries. That was a complex historical event in which numerous realms and parties participated, so we’ll sum it up by saying that the English high powers preferred The Church of England (Anglicanism), a form of Christian Protestantism that was against the Church of Rome and the figure of the Pope. Instead, the English monarch became the Supreme Governor of the church instead of the Pope, and, eventually, they sought to erase Catholicism from England. As a consequence, harsh religious persecution was put in place. Catholics faced heavy restrictions on practicing their faith, prohibitions against holding public office, fines for not attending Anglican services, and occasional imprisonment or execution for those deemed traitors due to their loyalty to the Pope over the English monarch. In other words, that was the perfect recipe for a group of Catholic revolutionaries to design a plot to kill and replace the Protestant king and his court. The 5th of November A group of conspirators, led by Robert Catesby, sought to assassinate King James I and his government officials in a dramatic explosion by November 5, 1605. They rented a cellar beneath the parliament building and stocked it with 36 barrels of gunpowder, enough to cause massive destruction. The plan unraveled, however, when an anonymous letter, sent days before the event, warned a Catholic member of parliament to stay away from the building.This prompted a search, and just hours before the planned explosion, authorities found Guy Fawkes, one of Catesby’s associates, guarding the gunpowder and ready to light the wicks. Fawkes was arrested, tortured, and eventually executed, while most of the other conspirators were also caught and met similar fates. The event is known now as the Gunpowder Plot. Today, November 5th is celebrated as Guy Fawkes Night or Bonfire Night in the UK. People light bonfires, set off fireworks, and sometimes burn effigies of Guy Fawkes or other hated characters to commemorate the failure of the plot and the survival of King James I —who most English people actually liked back then, despite his anti-Catholic posture. Fictional Facts So, a little bit disappointing up until now? Let’s fast forward to the 19th century when fiction starts to meddle with the facts. The writer William Harrison Ainsworth published a three-volume romance novel called ‘Guy Fawkes’. This story, published between 1840 and 1841, described a made-up romance between Fawkes and Viviana Radcliffe, a new character, and narrated the journey of the Gunpowder Plot from the summer of 1605 to its tragic end. All while picturing Fawkes as a sort of anti-hero. It wouldn’t be the last time. That novel was popular in its time, but what would really hit our century would be the comic ‘V for Vendetta’ by Alan Moore and David Lloyd, first published in 1980. Lloyd, indeed, is the author of the Guy Fawkes mask design as we know it. You may also be familiar with the homonymous movie from 2006. https://www.youtube.com/watch?v=lSA7mAHolAw&embedable=true They tell us a dystopian story set in a future Britain under a totalitarian regime. The story follows V, a mysterious vigilante who wears a Guy Fawkes mask and uses his skills to fight against the oppressive government. V’s ultimate goal is to awaken the people to the regime’s injustices and inspire them to reclaim their freedom, using acts of rebellion and symbolism to make his point. He ends up fulfilling the original Fawkes’ goal and blows up the parliament. The Guy Fawkes mask is central to V’s identity (always hidden otherwise) and symbolizes resistance against tyranny. Just as Fawkes once tried to overthrow a powerful government, V becomes a modern symbol of defiance, using the mask to rally people against oppression while protecting their identities. This symbolism has since been embraced worldwide by activists and movements advocating for freedom and justice. New Historical Facts The Guy Fawkes mask became a symbol of protest and defiance in the early 2000s, thanks largely to the online activist group Anonymous. Starting around 2008, members of Anonymous wore the mask during a series of global protests against the Church of Scientology, which they opposed due to its practices and aggressive control of information. The mask allowed activists to protect their identities while presenting a united front against what they saw as corruption and censorship. https://youtu.be/_ZgJ2bkyiTw?embedable=true In 2011, the mask gained even more visibility with the Occupy Wall Street movement, which protested economic inequality and corporate influence. The Occupy movement spread globally, with protesters in places like New York, London, and Tokyo donning the mask as a statement against social injustice. Julian Assange, a renowned cypherpunk and founder of WikiLeaks, also wore the mask publicly, aligning with the movement and its ideals of transparency and accountability. Since then, the Guy Fawkes mask has appeared in a range of protests worldwide, from Hong Kong’s pro-democracy demonstrations to anti-austerity marches across Europe. In addition, we must say that a wide lot of these protesters have learned to use cryptocurrencies to protect their funds and data. Today, the mask remains a powerful, recognizable symbol for those fighting for freedom and against government or corporate control, transcending borders and causes. A Mask Isn’t Enough Since the early days of protests by Anonymous and movements like Occupy Wall Street, the Guy Fawkes mask has allowed people to show solidarity while protecting their identities. However, in the current era of advanced surveillance and censorship, simply wearing a mask is no longer enough. According to Freedom House, “Global Internet freedom declined for the 14th consecutive year,” and “Free expression online was imperiled by severe prison terms and escalating violence.” Financial censorship is also a growing concern. In some countries, governments and institutions limit or freeze funds to silence dissent or restrict people’s access to their money. Cryptocurrencies and decentralized networks offer a way to push back. Due to their peer-to-peer nature, cryptocurrencies allow people to control their own funds and data without relying on central authorities. This means they can be used as tools for those fighting against inequality or authoritarianism, helping people keep their assets secure and enabling transactions even in restricted environments. Not all decentralized networks, however, are equally resistant to censorship. Blockchains can be censored and manipulated. Most of them still rely on “validators” or miners, leaving room for censorship and centralization. Obyte stands out as a powerful alternative: its Directed Acyclic Graph (DAG) structure is truly decentralized, free from miners, “validators”, or any other middlemen, making it especially resistant to censorship and a good option for people seeking true autonomy. Featured Image by Ahmed Zayan / Unsplash Picture this: you go to a protest these days, and you find a lot of people wearing white, bearded masks. Maybe the hacktivist group Anonymous comes to your mind. Maybe V for Vendetta. Maybe even the historical root, Guy Fawkes —a man who died over 400 years ago in old England. But do you know why are they all connected as a symbol of rebellion or even anarchism? Should you wear your own mask too? Well. Let’s explore this story in chronological order, shall we? If you must know it now, it includes a murder attempt plot, explosives, a dystopian world, and somehow ends up with modern online anarchism and protests worldwide. Cryptos have been in the mix too since they appeared in 2009. Old Historical Facts “Remember, remember, the 5th of November, Gunpowder, treason and plot.” This is an English folk rhyme that dates back to the 17th century and has firmly stayed in popular imagery ever since. You see, that century wasn’t catholic-friendly at all in England. In case you didn’t know, there was a thing called European Wars of Religion that went on for centuries. “Remember, remember, the 5th of November, Gunpowder, treason and plot.” folk rhyme folk rhyme That was a complex historical event in which numerous realms and parties participated, so we’ll sum it up by saying that the English high powers preferred The Church of England (Anglicanism), a form of Christian Protestantism that was against the Church of Rome and the figure of the Pope. Instead, the English monarch became the Supreme Governor of the church instead of the Pope, and, eventually, they sought to erase Catholicism from England. As a consequence, harsh religious persecution was put in place. Catholics faced heavy restrictions on practicing their faith, prohibitions against holding public office, fines for not attending Anglican services, and occasional imprisonment or execution for those deemed traitors due to their loyalty to the Pope over the English monarch. As a consequence, harsh religious persecution was put in place. In other words, that was the perfect recipe for a group of Catholic revolutionaries to design a plot to kill and replace the Protestant king and his court. The 5th of November A group of conspirators, led by Robert Catesby, sought to assassinate King James I and his government officials in a dramatic explosion by November 5, 1605. They rented a cellar beneath the parliament building and stocked it with 36 barrels of gunpowder, enough to cause massive destruction. The plan unraveled, however, when an anonymous letter, sent days before the event, warned a Catholic member of parliament to stay away from the building. This prompted a search, and just hours before the planned explosion, authorities found Guy Fawkes, one of Catesby’s associates, guarding the gunpowder and ready to light the wicks. Fawkes was arrested, tortured, and eventually executed, while most of the other conspirators were also caught and met similar fates. The event is known now as the Gunpowder Plot. Today, November 5th is celebrated as Guy Fawkes Night or Bonfire Night in the UK. People light bonfires, set off fireworks, and sometimes burn effigies of Guy Fawkes or other hated characters to commemorate the failure of the plot and the survival of King James I —who most English people actually liked back then, despite his anti-Catholic posture. Today, November 5th is celebrated as Guy Fawkes Night or Bonfire Night in the UK. Fictional Facts So, a little bit disappointing up until now? Let’s fast forward to the 19th century when fiction starts to meddle with the facts. The writer William Harrison Ainsworth published a three-volume romance novel called ‘Guy Fawkes’. This story, published between 1840 and 1841, described a made-up romance between Fawkes and Viviana Radcliffe, a new character, and narrated the journey of the Gunpowder Plot from the summer of 1605 to its tragic end. All while picturing Fawkes as a sort of anti-hero. published published It wouldn’t be the last time. That novel was popular in its time, but what would really hit our century would be the comic ‘V for Vendetta’ by Alan Moore and David Lloyd, first published in 1980 . Lloyd, indeed, is the author of the Guy Fawkes mask design as we know it. You may also be familiar with the homonymous movie from 2006. but what would really hit our century would be the comic ‘ V for Vendetta ’ by Alan Moore and David Lloyd, first published in 1980 ‘ V for Vendetta V for Vendetta ’ https://www.youtube.com/watch?v=lSA7mAHolAw&embedable=true https://www.youtube.com/watch?v=lSA7mAHolAw&embedable=true They tell us a dystopian story set in a future Britain under a totalitarian regime. The story follows V, a mysterious vigilante who wears a Guy Fawkes mask and uses his skills to fight against the oppressive government. V’s ultimate goal is to awaken the people to the regime’s injustices and inspire them to reclaim their freedom, using acts of rebellion and symbolism to make his point. He ends up fulfilling the original Fawkes’ goal and blows up the parliament. The Guy Fawkes mask is central to V’s identity (always hidden otherwise) and symbolizes resistance against tyranny. Just as Fawkes once tried to overthrow a powerful government, V becomes a modern symbol of defiance, using the mask to rally people against oppression while protecting their identities. This symbolism has since been embraced worldwide by activists and movements advocating for freedom and justice. The Guy Fawkes mask is central to V’s identity (always hidden otherwise) and symbolizes resistance against tyranny. New Historical Facts The Guy Fawkes mask became a symbol of protest and defiance in the early 2000s, thanks largely to the online activist group Anonymous. Starting around 2008, members of Anonymous wore the mask during a series of global protests against the Church of Scientology, which they opposed due to its practices and aggressive control of information. The mask allowed activists to protect their identities while presenting a united front against what they saw as corruption and censorship. https://youtu.be/_ZgJ2bkyiTw?embedable=true https://youtu.be/_ZgJ2bkyiTw?embedable=true In 2011, the mask gained even more visibility with the Occupy Wall Street movement, which protested economic inequality and corporate influence. The Occupy movement spread globally, with protesters in places like New York, London, and Tokyo donning the mask as a statement against social injustice. Julian Assange , a renowned cypherpunk and founder of WikiLeaks, also wore the mask publicly, aligning with the movement and its ideals of transparency and accountability. In 2011, the mask gained even more visibility with the Occupy Wall Street movement, which protested economic inequality and corporate influence. Julian Assange Julian Assange wore the mask wore the mask Since then, the Guy Fawkes mask has appeared in a range of protests worldwide, from Hong Kong’s pro-democracy demonstrations to anti-austerity marches across Europe. In addition, we must say that a wide lot of these protesters have learned to use cryptocurrencies to protect their funds and data. Today, the mask remains a powerful, recognizable symbol for those fighting for freedom and against government or corporate control, transcending borders and causes. A Mask Isn’t Enough Since the early days of protests by Anonymous and movements like Occupy Wall Street, the Guy Fawkes mask has allowed people to show solidarity while protecting their identities. However, in the current era of advanced surveillance and censorship, simply wearing a mask is no longer enough. According to Freedom House , “Global Internet freedom declined for the 14th consecutive year,” and “Free expression online was imperiled by severe prison terms and escalating violence.” Freedom House Freedom House “Global Internet freedom declined for the 14th consecutive year,” and “Free expression online was imperiled by severe prison terms and escalating violence.” Financial censorship is also a growing concern. In some countries, governments and institutions limit or freeze funds to silence dissent or restrict people’s access to their money. Cryptocurrencies and decentralized networks offer a way to push back. Due to their peer-to-peer nature, cryptocurrencies allow people to control their own funds and data without relying on central authorities. Financial censorship Financial censorship This means they can be used as tools for those fighting against inequality or authoritarianism, helping people keep their assets secure and enabling transactions even in restricted environments. Not all decentralized networks, however, are equally resistant to censorship. Blockchains can be censored and manipulated . Most of them still rely on “validators” or miners, leaving room for censorship and centralization. Obyte stands out as a powerful alternative: its Directed Acyclic Graph (DAG) structure is truly decentralized, free from miners, “validators”, or any other middlemen, making it especially resistant to censorship and a good option for people seeking true autonomy. Blockchains can be censored and manipulated Blockchains can be censored and manipulated Obyte Obyte Featured Image by Ahmed Zayan / Unsplash Featured Image by Ahmed Zayan / Unsplash Unsplash Unsplash

From Guy Fawkes to Resistance and Cryptos: A Fight for Freedom

Van Guy Fawkes tot Weerstand en Cryptos: A Fight for Freedom

De Guy Fawkes a la Resistencia y las Criptomonedas: Una Lucha por la Libertad

מגאי פוקס ועד התנגדות וקריפטוס: מאבק לחופש

ガイ・フォークスからレジスタンス、そして暗号通貨まで：自由のための戦い

ពី Guy Fawkes ទៅ Resistance និង Cryptos: ការប្រយុទ្ធដើម្បីសេរីភាព

Гай Фоукстон Каршылык көрсөтүүгө жана Криптолорго: Эркиндик үчүн күрөш

Avy amin'i Guy Fawkes mankany amin'ny fanoherana sy ny Cryptos: Ady ho an'ny fahafahana

Гай Фоуксаас Эсэргүүцэл ба Крипт: Эрх чөлөөний төлөөх тэмцэл

Od Guya Fawkesa do ruchu oporu i kryptowalut: walka o wolność

De Guy Fawkes à Resistência e Criptomoedas: Uma Luta pela Liberdade

Od Guya Fawkesa k Resistance a kryptomenám: Boj za slobodu

Од Гаја Фокса до отпора и криптоса: борба за слободу

Honest Online Voting: Myth or Reality?

Disclaimer: This article discusses the technical aspects of working with Spotify's API to create a playlist cover generator. While I'll be referencing a tool I developed for this purpose, the focus is on the development process and insights gained. The Genesis of the Idea As a developer and music enthusiast, I've always been fascinated by the potential of music APIs. The idea to create a Spotify playlist cover maker came from a simple desire to make playlist customization more accessible to users. In this article, I'll walk you through the development process, challenges faced, and lessons learned while working with Spotify's API. Understanding Spotify's API Before diving into development, it's crucial to understand Spotify's API. The Spotify for Developers platform provides comprehensive documentation and tools for working with their API. Key resources I found helpful: Spotify Web API Documentation
Authorization Guide
Endpoints Reference Tech Stack Selection For this project, I chose: Frontend: React.js with Tailwind CSS
Backend: Node.js with Express
Database: MongoDB
Image Processing: Sharp.js
API Integration: Spotify Web API This stack allowed for a dynamic UI, seamless Spotify integration, flexible data storage, and powerful image processing capabilities, all essential for creating a robust Spotify cover generator. Key Development Challenges 1. Spotify API Authentication Authentication is a crucial first step. Spotify uses OAuth 2.0, and here's a basic example of how to handle it: const SpotifyWebApi = require('spotify-web-api-node');

const spotifyApi = new SpotifyWebApi({
  clientId: process.env.SPOTIFY_CLIENT_ID,
  clientSecret: process.env.SPOTIFY_CLIENT_SECRET,
  redirectUri: process.env.SPOTIFY_REDIRECT_URI
});

app.get('/login', (req, res) => {
  const scopes = ['user-read-private', 'playlist-read-collaborative'];
  res.redirect(spotifyApi.createAuthorizeURL(scopes));
});

app.get('/callback', (req, res) => {
  const { code } = req.query;
  spotifyApi.authorizationCodeGrant(code).then(
    function(data) {
      spotifyApi.setAccessToken(data.body['access_token']);
      spotifyApi.setRefreshToken(data.body['refresh_token']);
      res.redirect('/');
    },
    function(err) {
      console.log('Something went wrong!', err);
      res.send(err);
    }
  );
}); 2. Fetching Playlist Data Once authenticated, you can fetch playlist data. Here's an example: async function getPlaylistData(playlistId) {
  try {
    const data = await spotifyApi.getPlaylist(playlistId);
    return {
      name: data.body.name,
      description: data.body.description,
      images: data.body.images,
      tracks: data.body.tracks.items.map(item => item.track.name)
    };
  } catch (error) {
    console.error('Error fetching playlist:', error);
    throw error;
  }
} 3. Image Processing For creating custom covers, I used Sharp.js. Here's a basic image processing function: const sharp = require('sharp');

async function processImage(buffer, text) {
  try {
    const image = sharp(buffer);
    const processedBuffer = await image
      .resize({
        width: 300,
        height: 300,
        fit: sharp.fit.cover,
        position: sharp.strategy.entropy
      })
      .composite([
        {
          input: Buffer.from(`<svg>...</svg>`),
          top: 10,
          left: 10
        }
      ])
      .toBuffer();
    
    return processedBuffer;
  } catch (error) {
    console.error('Error processing image:', error);
    throw error;
  }
} This function forms the core of the image manipulation in my playlist cover creator. Lessons Learned Rate Limiting is Crucial: Spotify's API has rate limits. Implementing proper error handling and retries is essential.
Keep Authentication Updated: Access tokens expire. Implement a robust token refresh mechanism to ensure uninterrupted access to the API.
Respect User Privacy: Only request the permissions you need. Spotify's Authorization Scopes guide is a must-read.
Optimize for Performance: Caching responses and optimizing API calls can significantly improve your application's performance. Looking Ahead As I continue to enhance the playlist cover generator, I'm exploring ideas like: Implementing AI-generated cover suggestions
Adding support for collaborative playlists
Creating a mobile app version For developers interested in music-related projects, Spotify's API offers a wealth of possibilities. I encourage you to explore their API Guidelines and Terms of Service for more information. Conclusion Working with Spotify's API to create a custom playlist cover tool has been an enriching experience. It's a testament to how developers can leverage powerful APIs to create tools that enhance users' music experiences. What innovative ideas do you have for using music APIs? What challenges have you faced in your API integration projects? Let's discuss in the comments! Tags: JavaScript, Web Development, Spotify API, Image Processing, React, API Integration Disclaimer: This article discusses the technical aspects of working with Spotify's API to create a playlist cover generator. While I'll be referencing a tool I developed for this purpose, the focus is on the development process and insights gained. Disclaimer: This article discusses the technical aspects of working with Spotify's API to create a playlist cover generator. While I'll be referencing a tool I developed for this purpose, the focus is on the development process and insights gained. tool I developed The Genesis of the Idea As a developer and music enthusiast, I've always been fascinated by the potential of music APIs. The idea to create a Spotify playlist cover maker came from a simple desire to make playlist customization more accessible to users. In this article, I'll walk you through the development process, challenges faced, and lessons learned while working with Spotify's API. Spotify playlist cover maker Understanding Spotify's API Before diving into development, it's crucial to understand Spotify's API. The Spotify for Developers platform provides comprehensive documentation and tools for working with their API. Spotify for Developers Key resources I found helpful: Spotify Web API Documentation Authorization Guide Endpoints Reference Spotify Web API Documentation Authorization Guide Endpoints Reference Tech Stack Selection For this project, I chose: Frontend: React.js with Tailwind CSS Backend: Node.js with Express Database: MongoDB Image Processing: Sharp.js API Integration: Spotify Web API Frontend: React.js with Tailwind CSS Backend: Node.js with Express Database: MongoDB Image Processing: Sharp.js API Integration: Spotify Web API This stack allowed for a dynamic UI, seamless Spotify integration, flexible data storage, and powerful image processing capabilities, all essential for creating a robust Spotify cover generator . Spotify cover generator Key Development Challenges 1. Spotify API Authentication Authentication is a crucial first step. Spotify uses OAuth 2.0, and here's a basic example of how to handle it: const SpotifyWebApi = require('spotify-web-api-node');

const spotifyApi = new SpotifyWebApi({
  clientId: process.env.SPOTIFY_CLIENT_ID,
  clientSecret: process.env.SPOTIFY_CLIENT_SECRET,
  redirectUri: process.env.SPOTIFY_REDIRECT_URI
});

app.get('/login', (req, res) => {
  const scopes = ['user-read-private', 'playlist-read-collaborative'];
  res.redirect(spotifyApi.createAuthorizeURL(scopes));
});

app.get('/callback', (req, res) => {
  const { code } = req.query;
  spotifyApi.authorizationCodeGrant(code).then(
    function(data) {
      spotifyApi.setAccessToken(data.body['access_token']);
      spotifyApi.setRefreshToken(data.body['refresh_token']);
      res.redirect('/');
    },
    function(err) {
      console.log('Something went wrong!', err);
      res.send(err);
    }
  );
}); const SpotifyWebApi = require('spotify-web-api-node');

const spotifyApi = new SpotifyWebApi({
  clientId: process.env.SPOTIFY_CLIENT_ID,
  clientSecret: process.env.SPOTIFY_CLIENT_SECRET,
  redirectUri: process.env.SPOTIFY_REDIRECT_URI
});

app.get('/login', (req, res) => {
  const scopes = ['user-read-private', 'playlist-read-collaborative'];
  res.redirect(spotifyApi.createAuthorizeURL(scopes));
});

app.get('/callback', (req, res) => {
  const { code } = req.query;
  spotifyApi.authorizationCodeGrant(code).then(
    function(data) {
      spotifyApi.setAccessToken(data.body['access_token']);
      spotifyApi.setRefreshToken(data.body['refresh_token']);
      res.redirect('/');
    },
    function(err) {
      console.log('Something went wrong!', err);
      res.send(err);
    }
  );
}); 2. Fetching Playlist Data Once authenticated, you can fetch playlist data. Here's an example: async function getPlaylistData(playlistId) {
  try {
    const data = await spotifyApi.getPlaylist(playlistId);
    return {
      name: data.body.name,
      description: data.body.description,
      images: data.body.images,
      tracks: data.body.tracks.items.map(item => item.track.name)
    };
  } catch (error) {
    console.error('Error fetching playlist:', error);
    throw error;
  }
} async function getPlaylistData(playlistId) {
  try {
    const data = await spotifyApi.getPlaylist(playlistId);
    return {
      name: data.body.name,
      description: data.body.description,
      images: data.body.images,
      tracks: data.body.tracks.items.map(item => item.track.name)
    };
  } catch (error) {
    console.error('Error fetching playlist:', error);
    throw error;
  }
} 3. Image Processing For creating custom covers, I used Sharp.js. Here's a basic image processing function: const sharp = require('sharp');

async function processImage(buffer, text) {
  try {
    const image = sharp(buffer);
    const processedBuffer = await image
      .resize({
        width: 300,
        height: 300,
        fit: sharp.fit.cover,
        position: sharp.strategy.entropy
      })
      .composite([
        {
          input: Buffer.from(`<svg>...</svg>`),
          top: 10,
          left: 10
        }
      ])
      .toBuffer();
    
    return processedBuffer;
  } catch (error) {
    console.error('Error processing image:', error);
    throw error;
  }
} const sharp = require('sharp');

async function processImage(buffer, text) {
  try {
    const image = sharp(buffer);
    const processedBuffer = await image
      .resize({
        width: 300,
        height: 300,
        fit: sharp.fit.cover,
        position: sharp.strategy.entropy
      })
      .composite([
        {
          input: Buffer.from(`<svg>...</svg>`),
          top: 10,
          left: 10
        }
      ])
      .toBuffer();
    
    return processedBuffer;
  } catch (error) {
    console.error('Error processing image:', error);
    throw error;
  }
} This function forms the core of the image manipulation in my playlist cover creator . playlist cover creator Lessons Learned Rate Limiting is Crucial: Spotify's API has rate limits. Implementing proper error handling and retries is essential. Keep Authentication Updated: Access tokens expire. Implement a robust token refresh mechanism to ensure uninterrupted access to the API. Respect User Privacy: Only request the permissions you need. Spotify's Authorization Scopes guide is a must-read. Optimize for Performance: Caching responses and optimizing API calls can significantly improve your application's performance. Rate Limiting is Crucial : Spotify's API has rate limits. Implementing proper error handling and retries is essential. Rate Limiting is Crucial Keep Authentication Updated : Access tokens expire. Implement a robust token refresh mechanism to ensure uninterrupted access to the API. Keep Authentication Updated Respect User Privacy : Only request the permissions you need. Spotify's Authorization Scopes guide is a must-read. Respect User Privacy Optimize for Performance : Caching responses and optimizing API calls can significantly improve your application's performance. Optimize for Performance Looking Ahead As I continue to enhance the playlist cover generator, I'm exploring ideas like: Implementing AI-generated cover suggestions Adding support for collaborative playlists Creating a mobile app version Implementing AI-generated cover suggestions Adding support for collaborative playlists Creating a mobile app version For developers interested in music-related projects, Spotify's API offers a wealth of possibilities. I encourage you to explore their API Guidelines and Terms of Service for more information. Conclusion Working with Spotify's API to create a custom playlist cover tool has been an enriching experience. It's a testament to how developers can leverage powerful APIs to create tools that enhance users' music experiences. custom playlist cover tool What innovative ideas do you have for using music APIs? What challenges have you faced in your API integration projects? Let's discuss in the comments! Tags: JavaScript, Web Development, Spotify API, Image Processing, React, API Integration Tags: JavaScript, Web Development, Spotify API, Image Processing, React, API Integration

From Idea to Implementation: Building a Spotify Playlist Cover Generator

من الفكرة إلى التنفيذ: إنشاء مولد أغلفة قائمة تشغيل Spotify

De la idea a la implementació: creació d'un generador de cobertes de llistes de reproducció de Spotify

Fra idé til implementering: Opbygning af en Spotify Playlist Cover Generator

De la idea a la implementación: creación de un generador de portadas para listas de reproducción de Spotify

از ایده تا اجرا: ساختن یک سازنده پوشش لیست پخش Spotify

Գաղափարից մինչև իրականացում. Spotify երգացանկերի ծածկույթի գեներատորի ստեղծում

アイデアから実装まで: Spotify プレイリスト カバー ジェネレーターの構築

Kobanda na likanisi tii na kosalela: Kotonga Générateur ya couverture ya playlist ya Spotify

Санаанаас хэрэгжүүлэх хүртэл: Spotify тоглуулах жагсаалтын хавтас үүсгэгчийг бүтээх

Från idé till implementering: Bygg en Spotify Playlist Cover Generator

Mula sa Ideya hanggang sa Pagpapatupad: Pagbuo ng Spotify Playlist Cover Generator

Fikirden Uygulamaya: Spotify Çalma Listesi Kapak Oluşturucu Oluşturma

File uploads are a common feature in many web applications, but handling them efficiently and securely can be challenging. In this article, we will explore how to implement efficient file uploads using Node.js, Express.js, and MongoDB. We will cover the entire process, from setting up the server to storing files in MongoDB GridFS, ensuring that your application can handle large files without sacrificing performance. Problem Statement Handling file uploads efficiently involves several challenges: Scalability: Managing large files without overwhelming server memory.
Security: Preventing unauthorized access and ensuring data integrity.
Performance: Uploading and retrieving files quickly.
Storage Management: Efficiently storing and retrieving files from the database. Solution We will use the following stack to address these challenges: Node.js: For the server-side environment.
Express.js: As the web framework.
Multer: Middleware for handling multipart/form-data, which is used for uploading files.
MongoDB: For storing metadata and files.
GridFS: A specification for storing and retrieving large files in MongoDB. Step-by-Step Implementation 1. Setting Up the Project First, let’s create a new Node.js project and install the necessary dependencies. mkdir file-upload-app
cd file-upload-app
npm init -y
npm install express multer mongoose gridfs-stream 2. Creating the Server Next, we will set up a basic Express server. // server.js
const express = require('express');
const mongoose = require('mongoose');
const multer = require('multer');
const { GridFsStorage } = require('multer-gridfs-storage');
const Grid = require('gridfs-stream');
const methodOverride = require('method-override');
const bodyParser = require('body-parser');
const crypto = require('crypto');
const path = require('path');

const app = express();

// Middleware
app.use(bodyParser.json());
app.use(methodOverride('_method'));
app.set('view engine', 'ejs');

// Mongo URI
const mongoURI = 'mongodb://localhost:27017/fileupload';

// Create mongo connection
const conn = mongoose.createConnection(mongoURI, { useNewUrlParser: true, useUnifiedTopology: true });

// Init gfs
let gfs;
conn.once('open', () => {
  // Init stream
  gfs = Grid(conn.db, mongoose.mongo);
  gfs.collection('uploads');
});

// Create storage engine
const storage = new GridFsStorage({
  url: mongoURI,
  file: (req, file) => {
    return new Promise((resolve, reject) => {
      crypto.randomBytes(16, (err, buf) => {
        if (err) {
          return reject(err);
        }
        const filename = buf.toString('hex') + path.extname(file.originalname);
        const fileInfo = {
          filename: filename,
          bucketName: 'uploads'
        };
        resolve(fileInfo);
      });
    });
  }
});
const upload = multer({ storage });

// @route POST /upload
// @desc  Uploads file to DB
app.post('/upload', upload.single('file'), (req, res) => {
  res.json({ file: req.file });
});

// @route GET /files
// @desc  Display all files in JSON
app.get('/files', (req, res) => {
  gfs.files.find().toArray((err, files) => {
    // Check if files
    if (!files || files.length === 0) {
      return res.status(404).json({
        err: 'No files exist'
      });
    }

    // Files exist
    return res.json(files);
  });
});

// @route GET /files/:filename
// @desc  Display single file object
app.get('/files/:filename', (req, res) => {
  gfs.files.findOne({ filename: req.params.filename }, (err, file) => {
    if (!file || file.length === 0) {
      return res.status(404).json({
        err: 'No file exists'
      });
    }
    return res.json(file);
  });
});

// @route GET /image/:filename
// @desc Display Image
app.get('/image/:filename', (req, res) => {
  gfs.files.findOne({ filename: req.params.filename }, (err, file) => {
    if (!file || file.length === 0) {
      return res.status(404).json({
        err: 'No file exists'
      });
    }

    // Check if image
    if (file.contentType === 'image/jpeg' || file.contentType === 'image/png') {
      // Read output to browser
      const readstream = gfs.createReadStream(file.filename);
      readstream.pipe(res);
    } else {
      res.status(404).json({
        err: 'Not an image'
      });
    }
  });
});

// @route DELETE /files/:id
// @desc  Delete file
app.delete('/files/:id', (req, res) => {
  gfs.remove({ _id: req.params.id, root: 'uploads' }, (err, gridStore) => {
    if (err) {
      return res.status(404).json({ err: err });
    }
    res.redirect('/');
  });
});

const port = 5000;

app.listen(port, () => console.log(`Server started on port ${port}`)); 3. Testing the Upload Feature We can test our implementation using tools like Postman. Upload a File: Use a POST request to http://localhost:5000/upload with form data containing the file.
Retrieve Files: Use a GET request to http://localhost:5000/files to get the list of all files.
Retrieve a Single File: Use a GET request to http://localhost:5000/files/:filename to get a specific file’s details.
Display Image: Use a GET request to http://localhost:5000/image/:filename to view the image in the browser.
Delete a File: Use a DELETE request to http://localhost:5000/files/:id to delete a file. Conclusion In this article, I demonstrated how to handle file uploads efficiently using Node.js, Express.js, and MongoDB. By leveraging GridFS, we can store and manage large files seamlessly, ensuring scalability, security, and performance. This approach can be further customized and expanded based on specific application requirements, making it a versatile solution for file management in modern web applications. File uploads are a common feature in many web applications, but handling them efficiently and securely can be challenging. In this article, we will explore how to implement efficient file uploads using Node.js, Express.js, and MongoDB. We will cover the entire process, from setting up the server to storing files in MongoDB GridFS, ensuring that your application can handle large files without sacrificing performance. Problem Statement Handling file uploads efficiently involves several challenges: Scalability: Managing large files without overwhelming server memory. Security: Preventing unauthorized access and ensuring data integrity. Performance: Uploading and retrieving files quickly. Storage Management: Efficiently storing and retrieving files from the database. Scalability : Managing large files without overwhelming server memory. Scalability Security : Preventing unauthorized access and ensuring data integrity. Security Performance : Uploading and retrieving files quickly. Performance Storage Management : Efficiently storing and retrieving files from the database. Storage Management Solution We will use the following stack to address these challenges: Node.js: For the server-side environment. Express.js: As the web framework. Multer: Middleware for handling multipart/form-data, which is used for uploading files. MongoDB: For storing metadata and files. GridFS: A specification for storing and retrieving large files in MongoDB. Node.js : For the server-side environment. Node.js Express.js : As the web framework. Express.js Multer : Middleware for handling multipart/form-data , which is used for uploading files. Multer multipart/form-data MongoDB : For storing metadata and files. MongoDB GridFS : A specification for storing and retrieving large files in MongoDB. GridFS Step-by-Step Implementation 1. Setting Up the Project First, let’s create a new Node.js project and install the necessary dependencies. mkdir file-upload-app
cd file-upload-app
npm init -y
npm install express multer mongoose gridfs-stream mkdir file-upload-app
cd file-upload-app
npm init -y
npm install express multer mongoose gridfs-stream 2. Creating the Server Next, we will set up a basic Express server. // server.js
const express = require('express');
const mongoose = require('mongoose');
const multer = require('multer');
const { GridFsStorage } = require('multer-gridfs-storage');
const Grid = require('gridfs-stream');
const methodOverride = require('method-override');
const bodyParser = require('body-parser');
const crypto = require('crypto');
const path = require('path');

const app = express();

// Middleware
app.use(bodyParser.json());
app.use(methodOverride('_method'));
app.set('view engine', 'ejs');

// Mongo URI
const mongoURI = 'mongodb://localhost:27017/fileupload';

// Create mongo connection
const conn = mongoose.createConnection(mongoURI, { useNewUrlParser: true, useUnifiedTopology: true });

// Init gfs
let gfs;
conn.once('open', () => {
  // Init stream
  gfs = Grid(conn.db, mongoose.mongo);
  gfs.collection('uploads');
});

// Create storage engine
const storage = new GridFsStorage({
  url: mongoURI,
  file: (req, file) => {
    return new Promise((resolve, reject) => {
      crypto.randomBytes(16, (err, buf) => {
        if (err) {
          return reject(err);
        }
        const filename = buf.toString('hex') + path.extname(file.originalname);
        const fileInfo = {
          filename: filename,
          bucketName: 'uploads'
        };
        resolve(fileInfo);
      });
    });
  }
});
const upload = multer({ storage });

// @route POST /upload
// @desc  Uploads file to DB
app.post('/upload', upload.single('file'), (req, res) => {
  res.json({ file: req.file });
});

// @route GET /files
// @desc  Display all files in JSON
app.get('/files', (req, res) => {
  gfs.files.find().toArray((err, files) => {
    // Check if files
    if (!files || files.length === 0) {
      return res.status(404).json({
        err: 'No files exist'
      });
    }

    // Files exist
    return res.json(files);
  });
});

// @route GET /files/:filename
// @desc  Display single file object
app.get('/files/:filename', (req, res) => {
  gfs.files.findOne({ filename: req.params.filename }, (err, file) => {
    if (!file || file.length === 0) {
      return res.status(404).json({
        err: 'No file exists'
      });
    }
    return res.json(file);
  });
});

// @route GET /image/:filename
// @desc Display Image
app.get('/image/:filename', (req, res) => {
  gfs.files.findOne({ filename: req.params.filename }, (err, file) => {
    if (!file || file.length === 0) {
      return res.status(404).json({
        err: 'No file exists'
      });
    }

    // Check if image
    if (file.contentType === 'image/jpeg' || file.contentType === 'image/png') {
      // Read output to browser
      const readstream = gfs.createReadStream(file.filename);
      readstream.pipe(res);
    } else {
      res.status(404).json({
        err: 'Not an image'
      });
    }
  });
});

// @route DELETE /files/:id
// @desc  Delete file
app.delete('/files/:id', (req, res) => {
  gfs.remove({ _id: req.params.id, root: 'uploads' }, (err, gridStore) => {
    if (err) {
      return res.status(404).json({ err: err });
    }
    res.redirect('/');
  });
});

const port = 5000;

app.listen(port, () => console.log(`Server started on port ${port}`)); // server.js
const express = require('express');
const mongoose = require('mongoose');
const multer = require('multer');
const { GridFsStorage } = require('multer-gridfs-storage');
const Grid = require('gridfs-stream');
const methodOverride = require('method-override');
const bodyParser = require('body-parser');
const crypto = require('crypto');
const path = require('path');

const app = express();

// Middleware
app.use(bodyParser.json());
app.use(methodOverride('_method'));
app.set('view engine', 'ejs');

// Mongo URI
const mongoURI = 'mongodb://localhost:27017/fileupload';

// Create mongo connection
const conn = mongoose.createConnection(mongoURI, { useNewUrlParser: true, useUnifiedTopology: true });

// Init gfs
let gfs;
conn.once('open', () => {
  // Init stream
  gfs = Grid(conn.db, mongoose.mongo);
  gfs.collection('uploads');
});

// Create storage engine
const storage = new GridFsStorage({
  url: mongoURI,
  file: (req, file) => {
    return new Promise((resolve, reject) => {
      crypto.randomBytes(16, (err, buf) => {
        if (err) {
          return reject(err);
        }
        const filename = buf.toString('hex') + path.extname(file.originalname);
        const fileInfo = {
          filename: filename,
          bucketName: 'uploads'
        };
        resolve(fileInfo);
      });
    });
  }
});
const upload = multer({ storage });

// @route POST /upload
// @desc  Uploads file to DB
app.post('/upload', upload.single('file'), (req, res) => {
  res.json({ file: req.file });
});

// @route GET /files
// @desc  Display all files in JSON
app.get('/files', (req, res) => {
  gfs.files.find().toArray((err, files) => {
    // Check if files
    if (!files || files.length === 0) {
      return res.status(404).json({
        err: 'No files exist'
      });
    }

    // Files exist
    return res.json(files);
  });
});

// @route GET /files/:filename
// @desc  Display single file object
app.get('/files/:filename', (req, res) => {
  gfs.files.findOne({ filename: req.params.filename }, (err, file) => {
    if (!file || file.length === 0) {
      return res.status(404).json({
        err: 'No file exists'
      });
    }
    return res.json(file);
  });
});

// @route GET /image/:filename
// @desc Display Image
app.get('/image/:filename', (req, res) => {
  gfs.files.findOne({ filename: req.params.filename }, (err, file) => {
    if (!file || file.length === 0) {
      return res.status(404).json({
        err: 'No file exists'
      });
    }

    // Check if image
    if (file.contentType === 'image/jpeg' || file.contentType === 'image/png') {
      // Read output to browser
      const readstream = gfs.createReadStream(file.filename);
      readstream.pipe(res);
    } else {
      res.status(404).json({
        err: 'Not an image'
      });
    }
  });
});

// @route DELETE /files/:id
// @desc  Delete file
app.delete('/files/:id', (req, res) => {
  gfs.remove({ _id: req.params.id, root: 'uploads' }, (err, gridStore) => {
    if (err) {
      return res.status(404).json({ err: err });
    }
    res.redirect('/');
  });
});

const port = 5000;

app.listen(port, () => console.log(`Server started on port ${port}`)); 3. Testing the Upload Feature We can test our implementation using tools like Postman. Upload a File: Use a POST request to http://localhost:5000/upload with form data containing the file. Retrieve Files: Use a GET request to http://localhost:5000/files to get the list of all files. Retrieve a Single File: Use a GET request to http://localhost:5000/files/:filename to get a specific file’s details. Display Image: Use a GET request to http://localhost:5000/image/:filename to view the image in the browser. Delete a File: Use a DELETE request to http://localhost:5000/files/:id to delete a file. Upload a File : Use a POST request to http://localhost:5000/upload with form data containing the file. Upload a File http://localhost:5000/upload Retrieve Files : Use a GET request to http://localhost:5000/files to get the list of all files. Retrieve Files http://localhost:5000/files Retrieve a Single File : Use a GET request to http://localhost:5000/files/:filename to get a specific file’s details. Retrieve a Single File http://localhost:5000/files/:filename Display Image : Use a GET request to http://localhost:5000/image/:filename to view the image in the browser. Display Image http://localhost:5000/image/:filename Delete a File : Use a DELETE request to http://localhost:5000/files/:id to delete a file. Delete a File http://localhost:5000/files/:id Conclusion In this article, I demonstrated how to handle file uploads efficiently using Node.js, Express.js, and MongoDB. By leveraging GridFS, we can store and manage large files seamlessly, ensuring scalability, security, and performance. This approach can be further customized and expanded based on specific application requirements, making it a versatile solution for file management in modern web applications.

Efficient File Uploads in Node.js: Using Express, MongoDB, and GridFS for Scalable Storage

How I Built an Event Scheduler in NodeJs

আমি কিভাবে NodeJs এ একটি ইভেন্ট শিডিউলার তৈরি করেছি

Wie ich einen Event-Scheduler in NodeJs erstellt habe

Cómo construí un programador de eventos en NodeJs

Comment j'ai créé un planificateur d'événements dans NodeJs

मैंने NodeJs में इवेंट शेड्यूलर कैसे बनाया

NodeJs でイベント スケジューラを構築する方法

NodeJs에서 이벤트 스케줄러를 구축한 방법

Como eu construí um agendador de eventos no NodeJs

Как я создал планировщик событий в NodeJs

NodeJs'de Etkinlik Zamanlayıcısını Nasıl Oluşturdum

Cách tôi xây dựng một trình lập lịch sự kiện trong NodeJs

如何在 NodeJs 中构建事件调度程序

While writing this post, I was thinking about where to start mentioning Ruby. It was hard to figure out because, not long ago, I didn’t even know what Ruby or JavaScript were. I didn’t even know what I should be doing with my life next. Yes, I was quite depressed at that time, but to explain everything better, let’s get back to 2021. A Career in Real Estate In 2021, I was working as a Real Estate Agent in Poland. It was my first proper profession in my homeland since I left the country right after college. The pandemic forced me to come back, but our plan at that time was to apply for a visa to Canada with my wife. We knew that the process would take some time, so while sorting everything out, I decided to open a business and become an agent. I had always wanted to own a business and work for myself. Challenges in the Polish Real Estate Market I enjoyed it, but let’s be honest. The real estate market in Poland is not the easiest one in Europe to work with. I had customers, houses, and flats for sale, and there was some rotation. Sometimes better, sometimes worse, but I knew that if I kept doing this for a few more years, I would be able to grow that business much more. Dreams of Moving Abroad However, I never wanted to live in my country. I always wanted to be somewhere else, and this thought was coming back to me every single day. I remember when I was around 16 years old, waking up in my family home, looking through the window, and thinking that I had lived here most of my life and the world was too big to spend the rest of my time in the same place. I think it was the beginning of the discovery part of my soul which I then grow up and I began to travel the world. A Plan to Move to Canada Anyway, at that moment, I sent over 800 CVs to various employers in Canada who could give me a visa. There was only one guy from Nova Scotia who responded. We had a chat for about 10 minutes, after which the connection broke, and I never heard back from him. Nice… My goal started to fall apart. Relocating to the UK After a year or so, my friend who lived in the UK told me to come to the UK instead. He was the one with whom I left the country straight after college. As you can guess, we flew to England. He told me to apply for pre-settled status as I had been living there for almost five years, so I should get it pretty easily. I thought, why not? Let’s do it! It would be a much better idea to become a real estate agent in the UK and start a business there. As I said, I did. I got a message from the government that my documents had been received and I had full rights to work and live in the UK. Hah! How lucky I am! It was after Brexit, unfortunately, so if I didn’t get it, I would have had to apply for visas and all that… Facing New Challenges It wasn’t more than a month, I think, when I had my motorbike and car sold, customers were taken care of by my coworkers from the company I was at, and I was ready to go. I rented a room in my friend’s house and had to find a job quickly as I was quite short on money. I quickly got a CNC position after I graduated from mechanical college. It was all good; I began saving money for my wife to come so we could rent a flat. A few months passed, and I began to receive calls from the Home Office asking me for documents that would prove I lived in the UK for five years before. I thought it would be easy! All I needed to do was find old emails, payslips, and other things and just forward them. But once I started digging for them, it turned out I had lived here only four years and eight months or something very close to that. I was cooked… I didn’t know what to do, and it turned out that my plan was falling apart… again. A New Beginning in the South I went to a lawyer who told me that if my decision was refused, I had to apply for another review that would buy me more time. Of course, it happened, I did apply, and because there were thousands of people in a similar situation to mine - I got stuck here for another 2 years. In the meantime, I moved down to the south where I found a company that could provide me with a working visa if I needed it, but here is where the Ruby story actually begins! Discovering Programming I work as a CNC bending machine operator… Every day kind of looks the same. It’s super boring, and I was getting sick of it and wanted to change something, as this was not getting me any closer to my dream of owning a business, and I knew I wouldn’t become a solopreneur by staying here. Experimenting with AI and Blogging I decided to experiment with ChatGPT and started two affiliate blogs. The first one taught me a lot about SEO, WordPress, and how to use AI, but a major Google update killed this blog. So I opened another one, this time on the Polish market, thinking that Google doesn’t check the Polish language so often. As of now, it’s working out. It gets 500 views a month, and I wonder whether to grow this more or sell it. I will see… If you want to have a look at the other websites I created, there you go: LordHomie
WewnetrznyAzyl A Visit from an Old Friend Working on these blogs, especially with AI, felt to me as if I was at work doing a monkey job. It wasn’t what I wanted. I still thought about what to do because I knew I couldn’t stand working on CNC anymore. A few days later, my friend from Poland called me, saying he would like to come and see me. He is a programmer and doing well. As you might already know, I came up with a brilliant idea. I will ask him everything about this and will start learning. The more I thought, the more ideas I had, and I saw that programming does not set any borders. You can literally do anything with it. Starting My Coding Journey When he came, I spoke to him, and we began looking for great resources for me to learn coding. I stumbled upon a couple of them, all on Udemy. After a little research, I picked one and was happy and excited to get this going. It was JavaScript, of course. I was learning every single day, little by little, until I got to classes, and then I had another look at the course resources. Finding the Right Learning Path It seemed to me that I was going quite fast and would finish the course in probably 1-2 months, but I still hadn’t even done one project, and I didn’t even have a clue how to make one! I knew it wasn’t a good way to learn, and from the experience I had from learning other things, I felt it was going to end up as tutorial hell. Discovering The Odin Project I quickly began to search for something else and found The Odin Project, which was recommended everywhere. It promised me to think as a programmer, sort out any problem on my own, build any project I wish, and be able to apply for junior dev jobs with all that knowledge. I thought that if it takes even 1 year or more for people to finish it, then it might be true. I gave it a go, and so far, I am not disappointed. Choosing Ruby Ok, but WHAT ABOUT RUBY?! While going through The Odin Project Foundations, I was thinking about which path I wanted to follow afterward: JavaScript or Ruby and Ruby on Rails. I read a lot and watched a lot of videos about it, and of course, I found a lot of articles that said Ruby is dead, nobody is hiring, it’s old and not good anymore, yada yada yada. I have always liked to be different and do things the opposite way for many people. Moreover, the idea of making an MVP fast with Ruby excited me as I could imagine myself doing more advanced projects than my previous WordPress blogs in probably less time with a higher success rate. All these were enough to make me choose it. If it’s the language that I can use to push my MVPs as fast as possible and see which one grabs people’s attention - then I am in! Thank you for reading my story! If you enjoyed this article and want to follow my journey as I continue to learn and grow in programming, follow me on Twitter @CodeByBlazej. I share updates, tips, and insights that you won’t want to miss. See you there! While writing this post, I was thinking about where to start mentioning Ruby. It was hard to figure out because, not long ago, I didn’t even know what Ruby or JavaScript were. I didn’t even know what I should be doing with my life next. Yes, I was quite depressed at that time, but to explain everything better, let’s get back to 2021. A Career in Real Estate In 2021, I was working as a Real Estate Agent in Poland. It was my first proper profession in my homeland since I left the country right after college. The pandemic forced me to come back, but our plan at that time was to apply for a visa to Canada with my wife. We knew that the process would take some time, so while sorting everything out, I decided to open a business and become an agent. I had always wanted to own a business and work for myself. Challenges in the Polish Real Estate Market I enjoyed it, but let’s be honest. The real estate market in Poland is not the easiest one in Europe to work with. I had customers, houses, and flats for sale, and there was some rotation. Sometimes better, sometimes worse, but I knew that if I kept doing this for a few more years, I would be able to grow that business much more. Dreams of Moving Abroad However, I never wanted to live in my country. I always wanted to be somewhere else, and this thought was coming back to me every single day. I remember when I was around 16 years old, waking up in my family home, looking through the window, and thinking that I had lived here most of my life and the world was too big to spend the rest of my time in the same place. I think it was the beginning of the discovery part of my soul which I then grow up and I began to travel the world. A Plan to Move to Canada Anyway, at that moment, I sent over 800 CVs to various employers in Canada who could give me a visa. There was only one guy from Nova Scotia who responded. We had a chat for about 10 minutes, after which the connection broke, and I never heard back from him. Nice… My goal started to fall apart. Relocating to the UK After a year or so, my friend who lived in the UK told me to come to the UK instead. He was the one with whom I left the country straight after college. As you can guess, we flew to England. He told me to apply for pre-settled status as I had been living there for almost five years, so I should get it pretty easily. I thought, why not? Let’s do it! It would be a much better idea to become a real estate agent in the UK and start a business there. As I said, I did. I got a message from the government that my documents had been received and I had full rights to work and live in the UK. Hah! How lucky I am! It was after Brexit, unfortunately, so if I didn’t get it, I would have had to apply for visas and all that… Facing New Challenges It wasn’t more than a month, I think, when I had my motorbike and car sold, customers were taken care of by my coworkers from the company I was at, and I was ready to go. I rented a room in my friend’s house and had to find a job quickly as I was quite short on money. I quickly got a CNC position after I graduated from mechanical college. It was all good; I began saving money for my wife to come so we could rent a flat. A few months passed, and I began to receive calls from the Home Office asking me for documents that would prove I lived in the UK for five years before. I thought it would be easy! All I needed to do was find old emails, payslips, and other things and just forward them. But once I started digging for them, it turned out I had lived here only four years and eight months or something very close to that. I was cooked… I didn’t know what to do, and it turned out that my plan was falling apart… again. A New Beginning in the South I went to a lawyer who told me that if my decision was refused, I had to apply for another review that would buy me more time. Of course, it happened, I did apply, and because there were thousands of people in a similar situation to mine - I got stuck here for another 2 years. In the meantime, I moved down to the south where I found a company that could provide me with a working visa if I needed it, but here is where the Ruby story actually begins! Discovering Programming I work as a CNC bending machine operator… Every day kind of looks the same. It’s super boring, and I was getting sick of it and wanted to change something, as this was not getting me any closer to my dream of owning a business, and I knew I wouldn’t become a solopreneur by staying here. Experimenting with AI and Blogging I decided to experiment with ChatGPT and started two affiliate blogs. The first one taught me a lot about SEO, WordPress, and how to use AI, but a major Google update killed this blog. So I opened another one, this time on the Polish market, thinking that Google doesn’t check the Polish language so often. As of now, it’s working out. It gets 500 views a month, and I wonder whether to grow this more or sell it. I will see… If you want to have a look at the other websites I created, there you go: LordHomie WewnetrznyAzyl LordHomie LordHomie WewnetrznyAzyl WewnetrznyAzyl A Visit from an Old Friend Working on these blogs, especially with AI, felt to me as if I was at work doing a monkey job. It wasn’t what I wanted. I still thought about what to do because I knew I couldn’t stand working on CNC anymore. A few days later, my friend from Poland called me, saying he would like to come and see me. He is a programmer and doing well. As you might already know, I came up with a brilliant idea. I will ask him everything about this and will start learning. The more I thought, the more ideas I had, and I saw that programming does not set any borders. You can literally do anything with it. Starting My Coding Journey When he came, I spoke to him, and we began looking for great resources for me to learn coding. I stumbled upon a couple of them, all on Udemy . Udemy After a little research, I picked one and was happy and excited to get this going. It was JavaScript, of course. I was learning every single day, little by little, until I got to classes, and then I had another look at the course resources. Finding the Right Learning Path It seemed to me that I was going quite fast and would finish the course in probably 1-2 months, but I still hadn’t even done one project, and I didn’t even have a clue how to make one! I knew it wasn’t a good way to learn, and from the experience I had from learning other things, I felt it was going to end up as tutorial hell. Discovering The Odin Project I quickly began to search for something else and found The Odin Project , which was recommended everywhere. It promised me to think as a programmer, sort out any problem on my own, build any project I wish, and be able to apply for junior dev jobs with all that knowledge. The Odin Project I thought that if it takes even 1 year or more for people to finish it, then it might be true. I gave it a go, and so far, I am not disappointed. Choosing Ruby Ok, but WHAT ABOUT RUBY?! While going through The Odin Project Foundations, I was thinking about which path I wanted to follow afterward: JavaScript or Ruby and Ruby on Rails. I read a lot and watched a lot of videos about it, and of course, I found a lot of articles that said Ruby is dead, nobody is hiring, it’s old and not good anymore, yada yada yada. I have always liked to be different and do things the opposite way for many people. Moreover, the idea of making an MVP fast with Ruby excited me as I could imagine myself doing more advanced projects than my previous WordPress blogs in probably less time with a higher success rate. All these were enough to make me choose it. If it’s the language that I can use to push my MVPs as fast as possible and see which one grabs people’s attention - then I am in! Thank you for reading my story! If you enjoyed this article and want to follow my journey as I continue to learn and grow in programming, follow me on Twitter @CodeByBlazej . I share updates, tips, and insights that you won’t want to miss. See you there! @CodeByBlazej

From Real Estate to Ruby: My Journey of Reinvention and Discovery

Stories, News & Mentions about RENTREDI

Rentredi’s Stories on HackerNoon