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NEW YORK, United States, February 2nd, 2024/Chainwire/--Avantis Testnet saw more than $5.5 billion in trading volumes in just two months of testing since November, and the mainnet launch includes an industry-first product, Avantis Loss Protection. , the next generation DEX for trading and market-making perpetuals for crypto and real-world assets, launched on Base mainnet today. During the two months of testnet, Avantis saw more than 400,000 trades from more than 50,000 on-chain traders transacting more than $5.5 billion in volumes on a TVL (total value locked) base of $120M. Avantis The company is backed by Pantera, Galaxy, Base Ecosystem Fund, Founders Fund, and Modular Capital. With Avantis, on-chain traders can utilize up to 75x leverage and get exposure to price movements across crypto, forex, and commodities. Liquidity providers can fine-tune their risk-return profile while earning trading fees by passively making markets for these trades. Avantis is launching its new Loss Protection product, a novel, industry-first mechanism that protects traders who take a contrarian view against the market by guaranteeing that they get a certain rebate on any trading losses. Testnet traders earned a cumulative rebate of $450K across ~20,500 loss-protected trades for taking contrarian trades and helping balance platform open interest (OI). Once live on the main net, Avantis Loss Protection will generate real savings for traders on their losses. Avantis has 22 trading pairs available at launch today, with more to come. To ensure economic security, competitive fees for traders, and protection for liquidity providers, Avantis has partnered with , the leader in risk simulations and protocol economics. Chaos Labs Chaos Labs’ designed and optimized trading parameters go live today on Avantis mainnet. Avantis has been audited by both and , and the audit reports are available for all to view via Avantis’ . Zellic Zokyo documentation “There's a large set of perpetual DEXs in the market, and yet it’s one of the only sectors in DeFi that’s still 100x behind its CeFi counterparts, which shows the immense whitespace for innovation at the protocol level,” Said Avantis Cofounder and CEO . Harsehaj Singh “This is why we’re so excited for Avantis’ beta launch on mainnet as it’s our first step towards contributing towards the growth of the onchain trading and stablecoin economy on Base.” Throughout testnet, Avantis witnessed the robustness of its risk-return tooling for liquidity providers, consistently seeing highly organic trading fee APRs, ranging from 20%-100% depending on the LP’s unique risk profile. Out of 5,600 LPs on the platform, ~1,900 locked their capital for some time, showing the demand for boosted returns in exchange for long-term behavior. Avantis plans to continue testing and refining these mechanisms with real-world data. In the coming months, Avantis plans to ship multiple product updates, including funding rates, one-click trading, gas-sponsored trades, their own L2 built on the OP stack, and novel real-world asset pairs like crude oil and treasury rates. The Avantis Edge: Hyperscaling DeFi Market Making: Onchain perpetual DEXs haven’t had their Uniswap V3 moment. Avantis offers sophisticated tools to liquidity providers (LPs) like risk tranches and time locking, allowing each LP to customize its unique risk-reward profile, creating a stickier liquidity flywheel. Democratized RWA Adoption: Perpetuals have barely touched non-crypto asset classes like commodities and forex, but demand for leveraged trading in these markets is very strong. While there is already strong RWA tokenization by top DeFi protocols, these offerings are gated to accredited institutions and are geared toward long-term holders, not traders. Avantis enables forex and commodities to be hedged and traded on-chain without the need for 1:1 tokenization. Loss Protected Trading: Avantis offers guaranteed rebates on traders’ losses as long as their trades help balance platform OI. This is in contrast to funding rates, which are the traditional way of balancing long-short skew (and are often unpredictable and geared towards basis traders). This is an industry first for any exchange of any kind (regardless of centralized or decentralized). Fully Decentralized: Everything from execution, settlement, liquidations, and market-making (via liquidity providers) occurs on-chain About Avantis Avantis is a decentralized leveraged trading and market-making platform that allows users to trade cryptocurrency, forex, and commodities with up to 75x leverage or power trades on the platform as a liquidity provider. Avantis gives sophisticated risk management tools to traders and liquidity providers for the use and provision of trading leverage. Avantis is built on Coinbase’s , and is industry leading investors such as Pantera, Founders Fund, Galaxy and Base Ecosystem Fund. For more information, visit . Base blockchain backed by https://www.avantisfi.com/ Contact Avantis, The Next Generation Perpetuals DEX, Launches Today on Base Mainnet Harsehaj Singh Avantis Labs Inc Sehaj@avantisfi.com This story was distributed as a release by Chainwire under HackerNoon’s Business Blogging Program. Learn more about the program here.

Avantis: The Next Generation Perpetuals DEX Launches Today On Base Mainnet

The acceleration of the digital transition from 2020 onwards emphasized one thing: there is only one global market, and in this global market, talent is more valuable than ever. According to a report by Advantis, , while consulting firm Korn Ferry estimates that by 2030, there will be a . 68% of middle-market firms reported struggles to attract top talent skilled labor shortage of 85 million people However, while many see this as a risk, I see it as an opportunity. We already know enough about freelancing and how it provides businesses and employees with a win-win arbitrage value proposition, which is why there is a lot of hype surrounding the HR Tech marketplace. To understand it, we need to look at the statistics related to freelancers. According to , 1.57 billion people in the world are freelancers. That equates to almost 47% of the workforce. There are reports, like this one , which estimate the value of global freelancing at $1.5 trillion, and predict that it will grow at a rate of 15% annually. World Bank data shared by the University of Cincinnati However, there are challenges to make it work. First, freelancing involves an increasing amount of cross-border collaboration. If freelancing is slated to grow at 15%, cross-border freelancing is poised to grow over 30% annually, according to . The same report also mentions how a popular freelancing platform had over 70% of its revenues coming from outside the USA. Finextra Hiring international freelancers brings the challenge of payroll. How do we ensure that all these contractors get paid on time? Furthermore, how do we minimize the cost at which they get paid? Dealing with freelancers involves, on one side, moving money across countries, which becomes expensive when dealing with conventional banking institutions. And if this doesn’t flow well, it is likely that, with plenty of options, freelancers will take their talents elsewhere. shared that 40% of freelancers would work for a company that pays them faster, and 59% of freelancers work for more than one company. In this crowded marketplace, talent has the upper hand, especially when it comes to high-level specialists who are always sought-after. A deep dive by Pymnts Furthermore, there is the legal aspect. Hiring contractors can be tricky when nations have different laws and regulations, and the wrong expectations can lead to costly problems down the line. Having said this, the pressing need for a service that helps companies scale globally by working with freelancers and providing freelancers with the necessary legal and compliance tools has not gone unnoticed. Human resources tech, or HR tech, is often labeled as the next big thing. Alex Wilhelm, from TechCrunch, mentioned that some of the hottest IPOs (Initial Public Offerings) in the second half of 2023 . could be companies in the HR tech field While technological capabilities play an essential role in the scalability of the solutions offered, there is another factor at play that can make a company stand out in this increasingly-crowded market, as more companies are vying to attain a piece of the market that, just for payroll, Sacra . estimated to be $1.4 trillion This key factor in serving this increasingly-global demand is having a thorough understanding of the nature of each of the markets where contractors are and where business is being conducted. It involves earning the loyalty of customers as people and making human connections instead of transactional ones. To succeed, HR tech companies must be culturally adaptable and recognize that every market posits a different set of challenges, and as such, providing companies and freelancers with the necessary tools to make this cross-border collaboration seamless. With this in mind, let’s keep one statistic in mind. The same World Bank report that said that there are 1.57 billion freelancers in the world also said that there are 73.3 million freelancers in the United States. This means that there are over 1 billion freelancers that are in different parts of the world. And they will be hired by companies that could be anywhere: in Dubai, Beijing, or Tel Aviv. For HR tech companies, and especially for those focused on payroll, the opportunity this opens up is unparalleled. A report from Hello Bonsai disclosed that , and the reason why that happens is because of the complexity involved with international transactions. In addition to tolerating delays, freelancers need to put up with hefty commissions, especially those charged by platforms like PayPal. 29% of freelancers are paid late Hence, there is a pressing need for an efficient, seamless service with human-centered design in mind that is able to satisfy companies and freelancers alike. With cross-border collaboration likely to keep increasing, and millions of people joining the freelancing ranks on a yearly basis, the company that can capitalize on this will have a foot ahead in the race for the $1.5 trillion pie.

Payroll Solutions for Cross-Border Freelancers: A $1.4 Trillion Opportunity

This Week On Planet Internet, We're Breaking Up With Big Tech

I have close Brazilian friends. Talented, tech-savvy, and extremely creative, my friends come from a diversity of professional backgrounds in software engineering, project management, information technology, design, and marketing. Rarely a dull moment when we connect, they have become like an extended family to me. When I told them I was researching and writing about the space industry in Brazil, they were both enthusiastic and a bit surprised. Space efforts at home emerge in the media on a relatively sporadic basis… The famous astrophysicist recently on Brazil along these lines. The letter is part of the Brazilian Portuguese edition of his book (2019). Dr. Tyson points out the importance of Brazil’s legacy in aviation and aeronautics with its home-grown and publicly traded aerospace conglomerate, . Based in the state of São Paulo since 1969, EMBRAER is a robust powerhouse that designs, manufactures, and sells aircraft and its parts for commercial, business, and military uses. Tyson also highlights the achievements of the first Brazilian astronaut, Lt. Col. Marcos Pontes, who flew on board the Russian Soyuz TMA-8   to the International Space Station. Since 2018, Pontes serves as Minister of State at the (Ministry of Science, Technology, and Innovation). Dr. Neil deGrasse Tyson shared his point of view Letters from an Astrophysicist Empresa Brasileira de Aeronáutica - EMBRAER Ministério da Ciência, Tecnologia e Inovações - MCTI Pontes and fellow crew members at the International Space Station. 2006 I wanted to offer a different angle of inquiry to my readers. Momentum, energy, and vibrancy dominate the tech startup ecosystem in Brazil.  This tech startup dynamism is especially evident in the city and state of São Paulo. If I borrow the philosophical , which explain that energy can neither be created nor destroyed in a given system - only converted from one form of energy to another, I ask myself the following questions. Can the space industry in Brazil also leverage the energy and vibrancy currently present in its tech startup ecosystem? With so much tech momentum, what's the status of space startups in Brazil? principles and questions from the laws of physics Setting the Context: The Startup Vibrancy Rich in precious natural resources and , Brazil is also the largest country in Latin America. The city of São Paulo, which is home to most of my friends, is one of the most populous cities in the Western Hemisphere. The University of São Paulo is by The World University Rankings. With some of the best academic programs and research in STEM (Science, Technology, Engineering and Mathematics), it is no surprise that . The city hosts the innovation and data centers of global titans such as Microsoft, Google, and Facebook. São Paulo is also the regional headquarters for Airbnb, Netflix, and Amazon. among the top world economies ranked in the top 100 the city is also full of tech companies and startups The startup ecosystem in São Paulo city is an impressively fine-tuned conveyer belt. In the year 2019, after the United States and China as the country in the world with the most tech startups that reach unicorn status. Unicorns are startups valued at US$ 1 billion or above. Brazil shared this spot with Germany. Some of these Brazilian tech unicorns leverage mobile gaming technologies, fintech, service delivery, healthcare, and real estate. Several unicorns are based in the city of São Paulo. Brazil ranked third Brazil has become an attractive market for venture capital and investors. In fact, it is the country in Latin America with the . The influx of venture capital reached an approximate US$ 2.49 billion in 2019. According to The , investments spread across 222 deals. The amount in 2018 totaled US$ 1.3 billion. Additionally, there is also the recent , which has heavily invested in Brazilian startups. most venture capital funds for its startups Association for Private Capital Investment in Latin America - LAVCA SoftBank-led Latin America tech fund of US$ 5 billion This startup boom in Brazil dates back to the late 1990s and early 2000s. With access to the Internet and increased web and mobile connectivity, the cascade of technologies, businesses, and startups followed. This growth is especially prevalent in the IT and tech worlds including, software development, cloud computing, artificial intelligence, Internet of Things - IoT, and mobile gaming. in 2018 beat the global average yearly increase with a solid 9.8%. Brazilian software developers and IT professionals are in top demand as well. Brazil is one of the for IT. Frequent international events and trade shows continue to position Brazil’s tech leadership in the region. Surprisingly, none of these unicorns relate to the space industry… Brazil’s IT market top outsourcing destinations The Case for Space Startups In the space industry, startups can be bold and efficient. With initial shorter cycles for experimentation and iteration, controlled risks facilitate scientific and technological breakthroughs. Today’s big global space players were once just startups and ideas. However, numerous space startups face the common challenge of rallying investment and venture capital with a length of time and effort greater than for other tech startups. In this sense, and despite growing interest in the global space economy, many tech entrepreneurs have remained at the periphery of Brazil's space industry. There are a few and remarkable space entpreneurs, however, which are currently driving innovation in the space startup ecosystem. I met earlier this fall. Lucas is the CEO and Founder of the space startup . Based in São Carlos in the state of São Paulo, Airvantis works in tandem with private and public partners in Brazil and overseas for space science. The company also has activities in the United States. It is part of the international network of startups in the . Lucas Fonseca Airvantis New York Space Alliance (NYSA) Lucas Fonseca, CEO and Founder of Airvantis. November 2020. Airvantis . It also serves as an incubator and innovation center for the collaborative . Garatéa-L is the first proposed Brazilian lunar commercial space mission. On its lunar orbit, the mission would test the survival of specific bacteria and fungi. sends scientific experiments to the International Space Station Mission Garatéa - L Lucas was born and raised in Santos in the state of São Paulo. His interests in space start early on in childhood. Lucas remembers growing up in the eighties in Brazil. Science fiction masterpieces and iconic space operas surfaced during this decade. These include E.T., Blade Runner, 2010, Dune, Aliens, The Terminator, Star Wars Episodes V and VI, and many others. Without a clear path to pursue his space ambitions at home, but with a vision to be part of the incredible world showcased in films, Lucas pursued studies overseas. This path opened doors for him to work in international space missions. “I never gave up being a space guy. And this is hard in Brazil, especially when I went to university. We didn’t have a space course per se at the university, so I pursued mechatronic engineering as my path to the space industry… When I was invited to work for the Rosetta Mission after my studies in Space Systems Engineering in France… I realized it was an opportunity to land on a comet that was very unique.” The launched in 2004. During a period of 12 years, the mission achieved historic milestones. It was the first time that a spacecraft did a rendezvous to study and follow the comet 67P/Churyumov–Gerasimenko in its orbit around the sun. During its journey, the Rosetta spacecraft conducted flybys of Planet Earth, Mars, and the asteroids 21 Lutetia and 2867 Šteins. The Philae robotic lander on board the Rosetta spacecraft was also the first-ever to successfully deploy in 2014 on the surface of a comet. The Rosetta mission definitely made a deep impression on Lucas and his own sense of purpose. European Space Agency - ESA Rosetta mission “Brazil was a blue ocean for me. I thought maybe I could try to catch the new space movement in Brazil. That's why I decided to open my own company in Brazil in 2012…” Invited to speak often to other countries in Latin America about his career and entrepreneurial path, Lucas assesses the challenges of getting visibility and traction as a space startup. A lot of the media coverage in Brazil tends to focus on what is being done overseas at the expense of local efforts. The government space program is very established with intricate systems and structures. Its strength has been on space cooperation for satellites rather than rocket launches. However, the sparks of enthusiasm and motivation are needed across public and private sectors to build and rally support for space. “People have no idea that we have such a varied space program in Brazil…We should be proud of the things we do in Brazil. This is something that I’m trying to evangelize. How to talk about space. How to train the right person to reach out to the media… You cannot expect the media to come to us… We need to know how to sell it.” Music video. Dormiveglia . “Things are happening in the space industry… But we need to have this spark of people in Brazil that want to do it even if it’s hard. It’s possible to have a space startup just like a delivery service startup. It’s getting easier because it’s more accessible to send things to space or to work on things related to space… It doesn’t matter if you have a space background or not because the possibilities are huge. You can work in communications, satellite imagery, and so much more…” Startup-driven innovation is especially relevant to the world's older and more established space programs like in Brazil. Startup vibrancy is a good benchmark for the future health of a country’s role in the growing globalized space economy. In this respect, a consolidated effort across sectors in Brazil to generate awareness of local efforts matters. Lucas agrees with this. “When you do something different for others, people love it. If you like space and you like being entrepreneurial, it doesn’t matter if you have a space background or not. We need to work for our future in space. We cannot rely on the government alone to link up and build a huge ecosystem…” Looking Back to Look Ahead Brazil’s government-led space program is one of the oldest in the world. It was formally established in 1960. This is just two years after the officially set up shop in the United States in 1958, and years ahead of its home-grown conglomerate EMBRAER. National Aeronautics Space Administration - NASA The origins of Brazil’s program date to work of the Grupo de Organização da Comissão Nacional de Atividades Espaciais - GOCNAE (Organization Group of the National Commission of Space Activities). This commission was appointed by presidential decree for space exploration, travel, and research. The researchers at GOCNAE contributed in its early days to numerous scientific international projects. This dynamic changed abruptly under the authoritarian military regime (1964- 1985). During this turbulent time in Brazilian history, the (National Institute for Space Research) substituted GOCNAE. INPE is based in São José dos Campos in the state of São Paulo. It quickly becomes the technical and scientific backbone for Brazil’s space program. Instituto Nacional de Pesquisas Espaciais - INPE The for high atmospheric research are also developed early on. These rockets were launched multiple times as early as 1965. For the sake of comparison, reflect the beginnings of the usage of sounding rockets in the United States in the late 1940s. In South America, only Argentina managed to develop the capabilities of sounding rockets during this same period. SONDA sounding rockets series a historical summary from NASA’s first sounding rockets Under military rule, the construction of launch vehicles started in Brazil. A couple of the prototypes of the Veículo Lançador de Satélites - VSL (Satellite Launcher Vehicle) get launched. They do not complete the missions due to technical problems. Diplomatic relations worsen in the South American region, which was already suffering from grim military dictatorships. This shows just the extent to which Brazil's R&D in launchers and satellites further complicated foreign relations. declassified U.S. foreign intelligence report in 1982 Likewise, Brazil’s two and only launch sites were also built under military rule. The (Barreira do Inferno Launch Center) was constructed in 1965 under the wing of the Estado-Maior da Aeronáutica - EMAer (Air Force General Staff). A typical site for launching sounding rockets, CLBI is located on the far northeastern coast of Brazil. The (Alcântara Launch Center) was built in 1982 in the historic city of Alcântara. This is the closest launch site to the Earth's equator. Centro de Lançamento da Barreira do Inferno - CLBI Centro Espacial de Alcântara - CLA Post-military years and under democratic leadership, INPE became part of the newly-created (Ministry of Science, Technology, and Innovation) in 1985. With INPE’s early leadership, more than a dozen satellites launched successfully since the 1990s. Brazil’s first satellite launch for Earth observation in 1993 was onboard a U.S. commercial small launch vehicle, the Pegasus Rocket. The rocket launched from a NASA B-52 aircraft. The remains in operation today to support weather forecasting, monitoring the water level of rivers and dams, and for other purposes. Ministério da Ciência, Tecnologia e Inovações - MCTI Satélite de Coleta de Dados 1 - SCD-1 (Data Collection Satellite 1) In 1994, the Brazilian government created a civilian branch for its space program, the Agência Espacial Brasileira - AEB (Brazilian Space Agency). With a change in discretionary authority and a different regulatory capacity, AEB works in tandem with INPE. It focuses on joint space technological development programs and . international space cooperation agreements The year 2003 was a sobering year for spaceflight in Brazil and across the world. Just several months after the , which killed all seven crew members during atmospheric re-entry, the at the Alcântara Launch Center days before launch. The explosion cost the lives of 21 personnel. STS-107 Columbia Space Shuttle disaster Brazilian VLS-1 VO3 exploded A brief survey of Brazilian space history reveals difficult periods.  Despite this past, the strengths of the Brazilian space program in satellites and international scientific space missions pave the way for the future. For example, INPE advances scientific research and development, especially concerning . Preparations are currently underway for the launch of the new . This launch is scheduled for 2021 from India. numerous small satellite missions Amazônia-1 satellite Space-minded entrepreneurs, like Lucas Fonseca, continue to invest in Brazil's space startup ecosystem. In conjunction with 11 startups, Airvantis is now part of the newly created (Alliance of Brazilian Space Startups). Launched in October 2020, this alliance has been set up in the city of Alcântara. The members wanted to pay tribute to the sacrifices made in the quest for space research, travel, and exploration. By leveraging the economic opportunities for Brazilian space startups in the domestic and global space markets, the alliance also wants to create a new chapter in the economic life of a former colonial town. Aliança das Startups Espaciais Brasileiras - ASB Some additional recent developments: - . The newly created (Mixed Parliamentary Front for the Brazilian Space Program) is composed of 186 deputies and 24 senators from across party lines. This parliamentary front emerges in Brazil to strengthen the cause and its support to its space industry. February 2020 Frente Parlamentar Mista para o Programa Espacial Brasileiro - FPMPEB - . Brazil and the United States enter a . This agreement seeks to encourage U.S. space companies to launch satellites from the Alcântara Launch Center. March 2019 Technology Safeguards Agreement - TSA - . The AEB signs an agreement to be part of the . November 2020 Global Spaceport Alliance Sound bites: Space Is A Positive-Sum Industry The modern space industry is not a zero-sum endeavor. It cannot be led by the government alone, the private sector, or just the dreams of startups. Space research, travel, and exploration are expensive. It takes . It also takes a village of people: space-minded entrepreneurs, advocates, government leaders, experts, artists, communicators, investors, and many others with a positive-sum mindset to scale up healthy space ecosystems. long-term thinking and sustained effort Brazil currently has at its fingertips competitive advantages. Tech unicorns are maturing and paving the way for new ones at one of the highest growth rates in the world. There’s already a colossal influx of venture capital funds for these startups that surpass the billions of dollars every year. Brazil's history shows us an established and veteran space program. It has powerful expertise and leadership in aviation and aeronautics. It has engineering and research programs ranked as the top in the world. This perfect mix may well renew enthusiasm at home and overseas to consolidate a vibrant Brazilian space startup ecosystem. New minds and fresh ideas can illuminate the way to Brazil’s new spacefaring future. I trust there’s a cadre of Brazilian entrepreneurs and investors like Lucas already looking forward to setting a steady course for space. The global space economy is growing at an accelerated rate. I hope that by giving visibility to the current space science efforts in Brazil, the space startup community leverages the momentum and energy already there for its tech unicorns. The payoff is out of this world. Brasil, eu aguardo ansiosa por seus sucessos futuros e espero que nos encontremos em breve no espaço... // (2017) at the top banner is by the prolific Brazilian artist Hugo Elias. Hugo was born and raised in Araraquara in the state of São Paulo. His work, under the name , is characterized by the unique and whimsical designs of his murals, designs, illustrations, and paintings. The inspiration for includes the rituals, music, and sacred geometry found in tribal indigenous customs in the Amazon jungle. I especially liked his subtle exploration of the passion for human spaceflight. Hugo shares my optimism for Brazil's future in the global space industry. The Traveler Ninjah The Traveler The song and video titled is also courtesy of the interdisciplinary artist, composer, and musician . Alexandre was born and raised in Brasília, Brazil’s federal capital. I selected this exquisite instrumental piece as part of my article because it invokes the often indistinguishable state between dreams and reality. A space-enthusiast as well, Alexandre often wonders about the complexity and unknowns of the cosmos. A composer for more than ten years, he also plays the piano in . Dormiveglia Alexandre Perotto Dormiveglia

How the Brazilian Startup Ecosystem Is Driving Innovation in the Space Industry 

Photo by on Stephanie McCabe Unsplash The not-so-mainstream way of building an API When speaking of building a backend API, the most common tools is either Spring Boot for Java or ExpressJS for JavaScript. Even for Kotlin, Spring Boot and JetBrain’s own ktor is the usual option to go with. But today I’ll explore into the less popular option of spark-kotlin. Disclaimer : I am not in anyway affiliated nor do I work at the project. I just simply stumbled upon it and started using it when working on a side project. (coming soon ™ ) Understanding REST If you already know or built a RESTful API, you can skip this part. There are already a few guides out there that goes into the specifics of what REST is and all the amazing things about it. So instead, I’ll just cover the basics (more like, that’s all I know about it). It’s the standard way of communication on the internet through HTTP. In the world of internet, the frontend web interface needs a way to communicate with the backend. While the frontend can say all kinds of things, they still need to declare a set of standard ‘phrases’ between them so the backend knows what the frontend is asking for. quite Setting up Here are a few thing you might want to have installed before getting started: Maven / Gradle Kotlin Java? (not too sure but you’ll probably need it) (optional) IntelliJ Getting started According to the , here are the following things to include to use it for either Maven or Gradle. Personally, I’m using Gradle for this simply because I’ve never used it outside of Android Development. (Also, its the new sexy thing. Kinda?) official GitHub repo of spark-kotlin "com.sparkjava:spark-kotlin:1.0.0-alpha"...} dependencies {...compile The basics This is what attracted me to use it over spring-boot. It just looks so much easier and straightforward comparatively. Admittedly, I’ve never used spring-boot for server development so I could be totally wrong especially if/when it comes down to a large scale application. GET request That’s it! I could’ve just ended the article here and you can pretty much figure out the rest on your own. But yea, let’s explore into a few more interesting features. POST request For POST request, they work as easily too! All you need to know is that the request body can be retrieved with . request.body() More fun stuff redirect(), params() Now, what if you want to have the same output for separate links? Well, you can just do . You can also get information from the URL through tag. Something like this… redirect("/path") params(":path") Instance API You can also have a separate instance API that is running on a different port or with a different setting than the static API simply by declaring it as a separate variable. Of course, there are a lot of more advanced features (such as session, uri, etc.) that I did not cover. Feel free to explore them on your own following the . README of the repo From here on out, I’m including some relevant but not exactly spark-kotlin stuff on it. Dealing with JSON In many (or most) occasions, both requests and responses will be in JSON format. Here’s where ’ comes in handy. It is really easy to use and had a wide range of support. I put together a simple example below to show how it is and can be used. Google Developers Gson library Unit testing It took me a while to find a testing library that works as easily as I wished. This is a test library made specifically for the spark framework by called . Despegar spark-test A few things to keep in mind though: This is a Java library made for instead of spark-java spark-kotlin The server needs to be running on the background (in my case, on port 4567) for this to work Unable to attach a request body for DELETE request Note: As mentioned at the time of writing, the DELETE request is unable to attach any kind of request body to it making it hard to test your DELETE request. Personally, I use different URL each feature so I just redirect a POST request from the same url to the DELETE request and test it through the POST request instead. Not ideal, but it works for now. About me I currently work at Apple Inc. on the role of Siri Language Engineer as an Independent Contractor through AdvantisGlobal. I spend a lot of my free time experimenting and building new things with technologies I find fun and interesting. Follow my exploration journey or on . here GitHub References by Kotlin WebApp Tutorial Wayne Ellis by Build REST Service with Kotlin, Spark Java and Requery Vaclav Souhrada

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