fix testurl

Author: sunny.luo

src/client.ts

@@ -1,5 +1,5 @@
 import { CheckResult, PushyOptions, ProgressData, EventType } from './type';
-import { joinUrls, log, testUrls } from './utils';
+import { emptyObj, joinUrls, log, noop, promiseAny, testUrls } from './utils';
 import { EmitterSubscription, Platform } from 'react-native';
 import { PermissionsAndroid } from './permissions';
 import {
@@ -24,9 +24,6 @@ const defaultServer = {
   ],
 };
 
-const empty = {};
-const noop = () => {};
-
 if (Platform.OS === 'web') {
   console.warn('react-native-update 不支持 web 端热更，不会执行操作');
 }
@@ -230,7 +227,7 @@ export class Pushy {
       const backupEndpoints = await this.getBackupEndpoints();
       if (backupEndpoints) {
         try {
-          resp = await Promise.race(
+          resp = await promiseAny(
             backupEndpoints.map(endpoint =>
               fetch(this.getCheckUrl(endpoint), fetchPayload),
             ),
@@ -248,7 +245,7 @@ export class Pushy {
         message: 'Can not connect to update server. Please check your network.',
       });
       this.throwIfEnabled(new Error('errorChecking'));
-      return this.lastRespJson ? await this.lastRespJson : empty;
+      return this.lastRespJson ? await this.lastRespJson : emptyObj;
     }
     this.lastRespJson = resp.json();
 
@@ -273,7 +270,7 @@ export class Pushy {
     }
     if (server.queryUrls) {
       try {
-        const resp = await Promise.race(
+        const resp = await promiseAny(
           server.queryUrls.map(queryUrl => fetch(queryUrl)),
         );
         const remoteEndpoints = await resp.json();

src/utils.ts

@@ -4,7 +4,25 @@ export function log(...args: any[]) {
   console.log('pushy: ', ...args);
 }
 
-const noop = () => {};
+export function promiseAny<T>(promises: Promise<T>[]) {
+  return new Promise<T>((resolve, reject) => {
+    let count = 0;
+
+    promises.forEach(promise => {
+      Promise.resolve(promise)
+        .then(resolve)
+        .catch(() => {
+          count++;
+          if (count === promises.length) {
+            reject(new Error('All promises were rejected'));
+          }
+        });
+    });
+  });
+}
+
+export const emptyObj = {};
+export const noop = () => {};
 class EmptyModule {
   constructor() {
     return new Proxy(this, {
@@ -23,9 +41,7 @@ const ping =
         Promise.race([
           fetch(url, {
             method: 'HEAD',
-          })
-            .then(({ status }) => (status === 200 ? url : null))
-            .catch(() => null),
+          }).then(({ status }) => (status === 200 ? url : null)),
           new Promise(r => setTimeout(() => r(null), 2000)),
         ]);
 
@@ -44,5 +60,5 @@ export const testUrls = async (urls?: string[]) => {
   if (await canUseGoogle) {
     return urls[0];
   }
-  return Promise.race(urls.map(ping)).catch(() => null);
+  return promiseAny(urls.map(ping)).catch(() => null);
 };