With Heroku, you can deploy your Express Node.js application to production in just a few steps. In this post, I'll show you a step-by-step guide to deploying your Express Node.js application to Heroku. To quickly get started, you can use my repo template . simeg/express-heroku-example What is Heroku? Heroku is a Platform as a Service (PaaS), and should not be confused with Service as a Service (SaaS). It offers a hobby plan where you can deploy your applications for free, with some limitations. For all my hobby website projects, I use Heroku. I've created things like and . See the About sections for links to the applications. sudoku-js impossible-tic-tac-toe Preparation First, install the Heroku CLI. If you're on macOS, run: $ brew tap heroku/brew && brew install heroku Otherwise, head over to . Heroku's website Deploy Node.js Application to Heroku Now that you have the CLI installed, we can start writing some code. We will use a minimal example with an HTTP Express server. Node.js Application Bootstrap a Node.js application with . Then, add Express as a dependency with . npm init npm i --save express Now, let's look at our slim Express server in . index.js https://gist.github.com/simeg/52b1bf277d5fe447239b379ea41346d0 You can read more about . Express here This HTTP server is simple. It has one endpoint, which returns the and the text . GET 200 Hello World! Now that we have the server ready, we need some extra things to be able to deploy it to Heroku. First of all, we need a . Procfile https://gist.github.com/simeg/5b0625a69e2f8427dd35cea94ad4fc88 This is the file that Heroku reads when it starts the application. As you can see, the file runs , so we need to create that too. We add it to . npm start package.json https://gist.github.com/simeg/c50ff3dd100963b967dd22bc1c8c06b8 Also, notice the section. This is for Heroku to know what runtime to use to run your application. You can see what Node.js versions Heroku support on . engines this site Deploy to Heroku There are a few ways to deploy to Heroku. We will use git which is the easiest way. Now that all the code is written, we need to commit it. $ git add .
$ git commit -m "Initial commit" Then, we need to create an application on Heroku. $ heroku create This command also adds a git remote called . This remote is where we push to deploy our application. Let's do that now! heroku $ git push heroku main At this point, Heroku will try to figure out what build pack to use. Essentially, what type of application are you deploying? Because we have a file in our root, it knows it's a Node.js application. package.json When the command is done, it will output a URL. Let's open it! ...
https://thawing-beyond-32509.herokuapp.com/ deployed to Heroku
... And, we can see in the browser. Easy as pie! Hello World! Now, you can check the logs for your application. $ heroku logs --tail Conclusion Now, you know how to deploy a Node.js application to Heroku. Heroku provides great tooling to quickly get something up and running. But this is just the start! Express allows you to build complex web applications. And with Heroku, you can quickly deploy them to production. Check out Heroku's for tips and tricks. And their is also useful. Best Practices for Node.js Development page about Node.js Connect with me on , , or Twitter LinkedIn GitHub

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How to Deploy an Express Node.js Application to Heroku Quickly and Easily

How to Deploy an Express Node.js Application to Heroku Quickly and Easily

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