node.js - node.js 中 https.get 的重试逻辑

Question

有没有办法https.get使用 async-retry 为 node.js 中的方法实现重试。

Answer 1

如果您使用此模块https://github.com/zeit/async-retry 您的答案在 README.md 文件中

// Packages
const retry = require('async-retry')
const fetch = require('node-fetch')

await retry(async bail => {
  // if anything throws, we retry
  const res = await fetch('https://google.com')

  if (403 === res.status) {
    // don't retry upon 403
    bail(new Error('Unauthorized'))
    return
  }

  const data = await res.text()
  return data.substr(0, 500)
}, {
  retries: 5
})

如果你想要更流行的解决方案/npm 模块，你可以在这里找到它https://www.npmjs.com/package/requestretry

const request = require('requestretry');
...
// use await inside async function
const response = await request.get({
  url: 'https://api.domain.com/v1/a/b',
  json: true,
  fullResponse: true, // (default) To resolve the promise with the full response or just the body

  // The below parameters are specific to request-retry
  maxAttempts: 5,   // (default) try 5 times
  retryDelay: 5000,  // (default) wait for 5s before trying again
  retryStrategy: request.RetryStrategies.HTTPOrNetworkError // (default) retry on 5xx or network errors
})