![]() ![]() For more information, refer to Managing plugins. Make sure the JavaScript and TypeScript, JavaScript Debugger, Node.js, Node.js Remote Interpreter, and Docker required plugins are enabled on the Settings | Plugins page, tab Installed. You can find some examples at Quick Tour of WebStorm and Docker. The IDE will take care of the initial configuration by automatically creating a new Dockerfile, building and running an image, syncing your source code, and installing npm dependencies in the container. server.jsĬonst pipelineAsync = promisify(pipeline)Ĭonsole.log(`[$/server.js"Īlmost there! Go to the source code on server.With Docker, you can quickly bootstrap your Node.js application to run, debug, and profile it from IntelliJ IDEA. Notice that this API is an event-driven API and it will handle requests by using the Node.js Streams approach. I'm going to explain what's happening there later. Copy the value and create your file then paste it there. Second, create a Node.js server file using the code below. The API should get all fields from the request, sum all values from it, and then respond to the requester with the calculated results.Ĭhoose an empty folder on your machine and let's start with the Web API.įirst, create a Math.js file which will be responsible for summing all fields from a JavaScript Object: //Math.js So first, create a Web API using the native Node.js' HTTP module. Creating the sample projectīefore we dive into debugging concepts, you should create an application to inspect. By using the most common tools, you'll be able to inspect code from simple terminal commands to remote machines from all over the world. The main goal here is to show how simple it can be to debug an application. By in the next sections I'll show you other ways to improve your search for bugs and statement validations. We can confuse text names with values, print out incorrect variables, and waste time on simple bugs or spelling errors. The practice we looked at in the previous section is not as productive as it could be. The console showing the program printing out values such as 'here1', 'here2', and so on. They print out statements to verify application states and values. The image below shows a common practice to inspect and "debug" apps. Instead, they often opt to use lightweight editors such as Sublime Text, VSCode, VIM, and others. Usually, developers from scripting based languages such as Ruby, Python, or JavaScript doesn't need to use IDEs such as Visual Studio, WebStorm, and so on. Node.js stream error with message "error: write after end" as an example for internal errors. So I google it to figure out what has happened in my application.Īs an example, the image below shows an internal Node.js stream error which is not showing what I did wrong in my program. In this case, it could be an internal error or something I've never seen before. It could be an if statement that has not evaluated my conditions or even a loop that should stop after certain interactions but doesn't stop. Is this behavior something that should be working with the current implementation? ![]() The console will show me where the error is and a brief possible reason for throwing the error as shown in the printout below: Image showing a typo in the code by calling getPhoane instead getPhone. In this case, the issue might be with some function or variable that I'm trying to call. When I realize that something weird has happened at my job I try to ask a few questions, as you'll see in the following next sections. Friday nights might look like the gif below: In fact, developers should spend 80% of their job thinking and only 20% writing code.īut in reality, most of that 80% is spent problem solving, fixing bugs, and trying to understand how to avoid further problems. ![]() If you've been working as a developer for a while, you might know that it's not like it is in the movies. Before starting to code make sure you have the following tools installed on your machine: In the next steps, you'll create a Web API using Node.js and debug your app using VSCode and Docker. ![]() Just take what you learn here and apply it in your editor of choice.īy the end of this post you will have learned how to inspect your apps by using the following tools: You can use other editors or IDEs such as Visual Studio or Web Storm, but in this post I'll use VSCode. Most examples shown here will use Node.js, but you can also use them on your JavaScript front-end apps. We'll also learn (and put into practice) the 6 ways to debug a Node.js application.Ĭan you guess what the 6 possible ways of debugging a Node.js application are? One of the most common practices in every developer's life involves finding bugs quickly and understanding what's going on in their apps. In this article, we'll get into some powerful tools to help you find and fix bugs using VSCode, Docker, and your terminal. ![]()
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