add retry feature

action.yml

@@ -29,6 +29,8 @@ inputs:
   is_debug: 
     description: 'show debug message of response'
     default: false
+  retry:
+    default: 1/1
   custom-config:
     description: custom config
 

src/index.ts

@@ -1,11 +1,9 @@
 
-import axios from 'axios'
+import axios, { AxiosRequestConfig } from 'axios'
 import config from './requestconf'
 import * as core from '@actions/core'
-import { AxiosRequestConfig } from 'axios'
-import setOutput from './output'
 import * as fs from 'fs'
-
+import { sendRequestWithRetry } from './util'
 
 try {
     if(core.getInput('custom-config')){
@@ -20,10 +18,11 @@ try {
             throw new Error('Config file not found, meybe you need to use action/checkout before this step or there is typo on file name')
         }
         let customConfig:  AxiosRequestConfig = JSON.parse(fs.readFileSync(path).toString()) as AxiosRequestConfig;
-        axios(customConfig).then(res => setOutput(res)).catch(err =>  core.setFailed(err.message))
+        sendRequestWithRetry(customConfig)
     }else{
-        axios(config).then(res => setOutput(res)).catch(err =>  core.setFailed(err.message))
+        sendRequestWithRetry(config)
     }
 } catch (err) {
     core.setFailed(err.message);
 }
+

src/util.ts

@@ -1,5 +1,6 @@
 import * as core from '@actions/core'
-import { AxiosResponse } from 'axios'
+import axios, { AxiosResponse, AxiosRequestConfig } from 'axios'
+import setOutput from './output'
 
 export const validateStatusCode = (actualStatusCode: string): void => {
     const acceptedStatusCode: string[] = core.getInput('accept')
@@ -18,4 +19,32 @@ export const buildOutput = (res: AxiosResponse <any>): string => {
     })
 }
 
+export const sendRequestWithRetry = (config: AxiosRequestConfig): void => {
+    var exit = false
+    var countRetry = 0
+    const retryArr: string[] = core.getInput('retry').split('/')
+    const numberOfRetry: number = Number(retryArr[0])
+    const backoff: number = Number(retryArr[1])
+    do{
+        axios(config)
+            .then(res => {
+                exit = true
+                setOutput(res)
+            })
+            .catch(err =>  {
+                countRetry += 1
+                core.info(`retry: ${countRetry}`)
+                if(countRetry <= numberOfRetry){
+                    sleep(backoff)
+                }else{
+                    exit = true
+                    core.setFailed(err)
+                }
+            })
+    }while(!exit)
+}
+
+function sleep(ms: number) {
+    return new Promise(resolve => setTimeout(resolve, ms));
+  }