Next, in the try block, we called superagent.get with await, which would resolve the promise and give us the result of the HTTP call to our mock users API. We started the IIFE with async because we want to use await, as mentioned in the next point. We required the superagent library to make our test HTTP GET call. Let’s further examine how we did the request with SuperAgent.
#NODEJS HTTP CLIENT EXAMPLE CODE#
Below is the code example: const https = require('https') Ĭonst headerDate = res.headers & ? : 'no response date' Ĭonsole.log('Status Code:', res.statusCode) Ĭonsole.log('Date in Response header:', headerDate) Ĭonst users = JSON.parse(ncat(data).toString()) Ĭonsole.log(`Got user with id: $`) Ĭonsole.log(err.message) //can be console.error For our example, as it is a HTTPS URL we will use the HTTPS module to perform the GET call. Node.js comes with both HTTP and HTTPS modules in the standard library. Let’s get started with the native HTTP(S) option that comes baked in with Node.js as our first example. Node.js has built-in modules to perform many HTTP(S)-related actions, one of which is the ability to make HTTP calls. We will walk through five options to make the GET HTTP call to the placeholder API.
Client options for HTTP requests in Node.js The first example is callback-based, the next two are promise-based, and the last two use async/await. You can see all the code examples collected in this open-source repository on GitHub. We will print out each user’s name and user ID.Īll the code will be laid out as a separate pull request. We will make an example GET request with all the HTTP client options by calling data from the JSONPlaceholder mock API. You are familiar with callbacks, promises, and async/awaitīasic things, but good to get them checked before proceeding any further 🙂 The example we will use.You can run the JavaScript files with node on your command line to see example output.
#NODEJS HTTP CLIENT EXAMPLE INSTALL#
You are familiar with npm commands like npm init, and you are able to install npm packages with npm install -save to a project.All the examples will be run using Node.js 14.x, the active LTS You should have Node.js running on your machine ( maybe as a Docker container).Here's a reduced, extremely simple example of making a HTTP request with Node.Before we dive into the description and code, below are some prerequisites you’ll need to get your hands dirty with some Node.js code, which involves calling a remote mock JSON API: I had always heard that dealing with HTTP requests with the native Node.js API was a nightmare, but after some investigation, I found what I needed was actually incredibly easy. I usually use the popular request module, available on npm, but I wanted to avoid external dependencies outside of the testing library. There's a service that does provide those credentials, but that requires that I make a HTTP request from inside a test helper. MDN has used its own Persona login service for years, and since many key features of MDN require login (and subsequent account creation), it was important that I have a way to get test credentials. I'm using Intern, a JavaScript-based WebDriver API created by my former employer SitePen. I'm currently working on adding client-side testing to the Mozilla Developer Network (MDN).
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