Testing with typescript missing interceptor property

[schirrel]

Describe the issue

I am develping a platform with typescritp and for testing axios interceptor, as we can found a lot on the web, is used the property handlers but on axios types for typescritp use it is not presente, as you can see here. It is. abad practice to test axios interceptors using handlers or it is in fact missing, and should be presente?

Example Code

Expected behavior, if applicable

To test axios interceptor with handlers

Environment

• Axios Version [e.g. 0.21.1]
• Node.js Version [e.g. 14.16]
• OS: OSX 11.13

Additional context/Screenshots

Add any other context about the problem here. If applicable, add screenshots to help explain.

[tiagobarros01]

As the "handler" method doesn't have any type in Axios, I solved this problem by creating a custom type file for Axios, declaring the module itself and adding a new property to the existing "AxiosInrterceptorManager" interface.

In your src folder, create a types folder or any other name what your prefer, and create a "axios.d.ts" file

That way you don't lose the kind of any other method and solve the "handler" problem

import 'axios';

declare module 'axios' {
  export interface AxiosInterceptorManager<V> {
    use(
      onFulfilled?: (value: V) => V | Promise<V>,
      onRejected?: (error: any) => any,
    ): number;
    eject(id: number): void;
    handlers: any[];
  }
}

axios.d.ts

[schirrel]

Thanks @tiagobarros01 i am not so good at TS. but sure this will help

[tiagobarros01]

Thanks @tiagobarros01 i am not so good at TS. but sure this will help

Sure thing!

[jasonsaayman]

Closing it seems to be answered

[tiborpilz]

I've also run into this issue, and although adding an axios shim with the type set is a workaround for the problem, it seems like these types should be provided by axios - there was a related PR which sadly has been closed as stale: #4572, maybe this deserves a second look?

[faizanallex]

please merge :(