@charleswong28/bearer-api-scraping

Bearer API Scraping tool

Simple scraping library with auto-retry of API with structure of Bearer ${token} in header.

Logic flow

1. Fetch the access token api and store it
2. Fetch the API with access token in header
3. If the response status code is not 2xx, retry with numberOfRetryBeforeRefetchAccessToken times.
4. If the request failed with more than numberOfRetryBeforeRefetchAccessToken times, renew access token and try again with numberOfAccessTokenRetry.
5. If access token api failed numberOfAccessTokenRetry times or request failed with numberOfAccessTokenRetry + accessToken == null ? 0 : 1 x numberOfRetryBeforeRefetchAccessToken times, throw an error.

Usage

import Scraper from 'api-scaping';

for (let i = 0; i < 1000; i++) {
  const result = await Scraper.get(`some_uri/${i}/item`, {
    numberOfRetryBeforeRefetchAccessToken: 5,
    refetchAccessTokenUri,
    getAccessToken: (response) => response.accessToken,
    numberOfAccessTokenRetry: 5,
  });

  console.log('result', result);
}

Method

Name	parameters
get	uri - uri to fetch opts - fetch options
post	uri - uri to fetch opts - fetch options

Structure

• Code located in index.ts
• Tests located in index.test.ts

Limitation

• Proxy can be implemented by passing requestConfig to Axios.
• Access Token API is only supported as get request. PR is welcomed.