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https://github.com/loaderb0t/cypress-easy-network-stub

An easy class to mock a lot of network requests in cypress
https://github.com/loaderb0t/cypress-easy-network-stub

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An easy class to mock a lot of network requests in cypress

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# cypress-easy-network-stub

An easy class to mock a lot of network requests in cypress.

## See also 🔬

The base class of this package is:
[https://github.com/LoaderB0T/easy-network-stub](https://github.com/LoaderB0T/easy-network-stub)

## Motivation 💥

When running tests in cypress, sometimes you want to mock all network requests. Especially when running tests in a CI environment. This package provides an easy and type safe way to mock network requests for a whole API.

## Features 🔥

✅ Easy to setup and use

✅ Type safe url and query parameters

✅ Add your own parameter matchers

✅ Works asynchronously (Promise based)

✅ Supports failing of stubbed requests

✅ No production dependencies (You need to have cypress installed, of course)

The primary use case for this package is to create a mock server for your tests so that they do not need real network requests.

## Built With 🔧

- [TypeScript](https://www.typescriptlang.org/)

## Usage Example 🚀

```typescript
const posts = [0, 1, 2, 3, 4, 5].map(x => ({ postId: x, text: `test${x}` }));

const blogStub = new CypressEasyNetworkStub(/MyServer\/api\/Blog/);

blogStub.init();

blogStub.stub('GET', 'posts', () => {
return posts;
});

// Match Example: GET: /MyServer/api/Blog/posts/123
blogStub.stub('GET', 'posts/{id:number}', ({ params }) => {
return posts.find(x => x.postId === params.id);
});

// Match Example: POST: /MyServer/api/post
blogStub.stub('POST', 'posts', ({ body, params }) => {
posts.push({ postId: body.postId, text: body.text });
});

// Match Example: POST: /MyServer/api/Blog/test/true?query=myValue&secondQuery=myOtherValue
// Note: The order of the query parameters is not important
blogStub.stub('POST', 'test/{something:boolean}?{query:string}&{secondQuery:number}', ({ body, params }) => {
console.log(params.something);
console.log(params.query);
console.log(params.secondQuery);
console.log(body);
});

// Here we use the stub2<>() method to create a stub with a typed body
blogStub.stub2()('POST', 'test', ({ body }) => {
console.log(body.myValue);
});

// You can mark query params as optional with a '?'
// Match Example: GET: /MyServer/api/Blog/test
// Match Example: GET: /MyServer/api/Blog/test?refresh=true
blogStub.stub('GET', 'test?{refresh?:boolean}', ({ body, params }) => {
if (params.refresh) {
console.log('Refreshing');
}
console.log(body.myValue);
});

// You can mark query params as arrays with a '[]'
// Match Example: GET: /MyServer/api/Blog/test?props=1
// Match Example: GET: /MyServer/api/Blog/test?props=1&props=2
blogStub.stub('GET', 'test?{props:number[]}', ({ params }) => {
params.props.forEach(x => console.log(x));
});
```

## Strongly typed api parameters:
You can add types to parameters and they will be parsed. Out of box 'string', 'number' and 'boolean' are supported. You can add your own types and parsers though.




## Contributing 🧑🏻‍💻

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement".
Don't forget to give the project a star! Thanks again!

1. Fork the Project
2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)
3. Commit your Changes (`git commit -m 'Add some AmazingFeature'`)
4. Push to the Branch (`git push origin feature/AmazingFeature`)
5. Open a Pull Request

## License 🔑

Distributed under the MIT License. See `LICENSE.txt` for more information.

## Contact 📧

Janik Schumacher - [@LoaderB0T](https://twitter.com/LoaderB0T) - [linkedin](https://www.linkedin.com/in/janikschumacher/)

Project Link: [https://github.com/LoaderB0T/cypress-easy-network-stub](https://github.com/LoaderB0T/cypress-easy-network-stub)