[Feature] Automatic retries

[luisaveiro]

Summary

Provide a retry mechanism for the HTTP Client to retry the request automatically if the request attempt fails.

---

Possible implementation

We can have a retry method that accepts the maximum number of times the request should be attempted and the number of milliseconds that the HTTP Client should wait between attempts.

We should have an optional third argument for the retry method. The third argument should be a callable that determines if the retries should be attempted.

Method signature

export default class HttpClient {
  retry(
    maxAttempts: number,
    intervalMilliseconds: number,
    callback?: (response: Response, request: this) => boolean | null
  ): this {
    // code ...
  }
}

---

Code examples

Code example - no callback

import { HttpClient } from '@wolfpackthatcodes/http-client';

const response = new HttpClient()
  .retry(3, 1000)
  .get('https://api.example.local/users');

Code example - with callback

import { HttpClient } from '@wolfpackthatcodes/http-client';

const response = new HttpClient()
  retry(3, 1000, (response: Response, request: HttpClient) => {
    return response.status !== 404;
  })
  .get('https://api.example.local/users');

[luisaveiro]

I have created a PR #87