feat: ts

lib/endpoint.ts

@@ -0,0 +1,53 @@
+import { logger } from './utils';
+
+let currentEndpoint = 'https://update.react-native.cn/api';
+let backupEndpoints: string[] = ['https://update.reactnative.cn/api'];
+let backupEndpointsQueryUrl: string | null = null;
+
+export async function updateBackupEndpoints() {
+  if (backupEndpointsQueryUrl) {
+    try {
+      const resp = await fetch(backupEndpointsQueryUrl);
+      const remoteEndpoints = await resp.json();
+      if (Array.isArray(remoteEndpoints)) {
+        backupEndpoints = Array.from(
+          new Set([...backupEndpoints, ...remoteEndpoints]),
+        );
+        logger('fetch remote endpoints:', remoteEndpoints);
+        logger('merged backup endpoints:', backupEndpoints);
+      }
+    } catch (e) {
+      logger('fetch remote endpoints failed');
+    }
+  }
+  return backupEndpoints;
+}
+
+export function getCheckUrl(APPKEY, endpoint = currentEndpoint) {
+  return `${endpoint}/checkUpdate/${APPKEY}`;
+}
+
+/**
+ * @param {string} main - The main api endpoint
+ * @param {string[]} [backups] - The back up endpoints.
+ * @param {string} [backupQueryUrl] - An url that return a json file containing an array of endpoint.
+ *                                    like: ["https://backup.api/1", "https://backup.api/2"]
+ */
+export function setCustomEndpoints({
+  main,
+  backups,
+  backupQueryUrl,
+}: {
+  main: string;
+  backups?: string[];
+  backupQueryUrl?: string;
+}) {
+  currentEndpoint = main;
+  backupEndpointsQueryUrl = null;
+  if (Array.isArray(backups) && backups.length > 0) {
+    backupEndpoints = backups;
+  }
+  if (typeof backupQueryUrl === 'string') {
+    backupEndpointsQueryUrl = backupQueryUrl;
+  }
+}