using-chai-with-esm-and-plugins.md

title	layout	bodyClass	weight	order	headings
Using Chai with ESM and Plugins	guide	guide	0	20	Importing Chai Using Plugins Exposing Globals in Plugins

Using Chai with ESM and Plugins

This guide provides an overview of how to use Chai with ECMAScript modules (ESM) and plugins, including examples using the chai-http plugin.

Importing Chai

To use Chai with ESM, you can import Chai in your test files using the import statement. Here's how you can import the expect interface:

import { expect } from 'chai';

Using Plugins

Chai plugins can extend Chai's capabilities. To use a plugin, you first need to install it, then use the use method to load it. Here's how to use the chai-http plugin as an example:

import chai from 'chai';
import { request }, chaiHttp from 'chai-http';

chai.use(chaiHttp);

// Now you can use `chai-http` using the `request` function.

chai-http Example

Here's an example of using chai-http to test an HTTP GET request:

import chai, { expect } from 'chai';
import { request }, chaiHttp from 'chai-http';

chai.use(chaiHttp);

describe('GET /user', () => {
  it('should return the user', done => {
    request('http://example.com')
      .get('/user')
      .end((err, res) => {
        expect(res).to.have.status(200);
        expect(res.body).to.be.an('object');
        done();
      });
  });
});