You could use axios.interceptors.response.use to do that. When you encounter the error, you could recursive return axios request with resolve. Then you could defined the condition by youself whenever you want to retry. This is a simple axios retry version, and this is also a concept which axios-retry do.
const axios = require("axios")
/**
*
* @param {import("axios").AxiosInstance} axios
* @param {Object} options
* @param {number} options.retry_time
* @param {number} options.retry_status_code
*/
const retryWrapper = (axios, options) => {
const max_time = options.retry_time;
const retry_status_code = options.retry_status_code;
let counter = 0;
axios.interceptors.response.use(null, (error) => {
/** @type {import("axios").AxiosRequestConfig} */
const config = error.config
// you could defined status you want to retry, such as 503
// if (counter < max_time && error.response.status === retry_status_code) {
if (counter < max_time) {
counter++
return new Promise((resolve) => {
resolve(axios(config))
})
}
return Promise.reject(error)
})
}
async function main () {
retryWrapper(axios, {retry_time: 3})
const result = await axios.get("https://api.ipify.org?format=json")
console.log(result.data);
}
main()
I also make a demo version to simulate the final request is success, but previous request all failed. I defined the status_code: 404 I want to retry, and setup 3 times for retry.
const axios = require("axios")
/**
*
* @param {import("axios").AxiosInstance} axios
* @param {Object} options
* @param {number} options.retry_time
* @param {number} options.retry_status_code
*/
const retryWrapper = (axios, options) => {
const max_time = options.retry_time;
const retry_status_code = options.retry_status_code;
let counter = 0;
axios.interceptors.response.use(null, (error) => {
console.log("==================");
console.log(`Counter: ${counter}`);
console.log("Error: ", error.response.statusText);
console.log("==================");
/** @type {import("axios").AxiosRequestConfig} */
const config = error.config
if (counter < max_time && error.response.status === retry_status_code) {
counter++
return new Promise((resolve) => {
resolve(axios(config))
})
}
// ===== this is mock final one is a successful request, you could delete one in usage.
if (counter === max_time && error.response.status === retry_status_code) {
config.url = "https://api.ipify.org?format=json"
return new Promise((resolve) => {
resolve(axios(config))
})
}
return Promise.reject(error)
})
}
async function main () {
retryWrapper(axios, {retry_time: 3, retry_status_code: 404})
const result = await axios.get("http://google.com/not_exist")
console.log(result.data);
}
main()
You will see the log print following message.
==================
Counter: 0
Error: Not Found
==================
==================
Counter: 1
Error: Not Found
==================
==================
Counter: 2
Error: Not Found
==================
==================
Counter: 3
Error: Not Found
==================
{ ip: 'x.x.x.x' }
