Install

Prerequisites

msw-when-then is a non-invasive library and currently provides an additional layer on top of MSW. This means that you need MSW is installed and set up. You can find out more about that here: https://mswjs.io/docs/getting-started/install.

Install

To get started, install msw-when-then using npm or yarn. This is usually installed as a dev dependency:

npm install --save-dev msw-when-then

Setup

msw-when-then makes no assumptions on how you have set up MSW. All that is required is for you to pass the server and rest instances and you are good to go:

import { server, rest } from "your-existing-msw-setup";

import { whenThen } from "msw-when-then";

const { when } = whenThen(server, rest);

and that's it! You can now start mocking:

test('test using msw-when-then', async () => {

//...

when(get("https://some.url")).thenReturn(ok({ foo: "bar" }));

//...

})