Usage

fetch-mock is the most comprehensive library for mocking the fetch API.

It allows mocking http requests made using fetch or a library imitating its api, such as node-fetch.

It supports most JavaScript environments, including browsers, Node.js, web workers and service workers.

As well as shorthand methods for the simplest use cases, it offers a flexible API for customising all aspects of mocking behaviour.

Example

fetchMock.mock('http://example.com', 200);
const res = await fetch('http://example.com');
assert(res.ok);
fetchMock.restore();