Merge branch 'main' into release

Author: AndrewG828

src/api/controllers/VersionController.ts

@@ -0,0 +1,19 @@
+import { Get, JsonController } from "routing-controllers";
+
+import { AppVersionService } from "../../services/AppVersionService";
+
+@JsonController("version/")
+export class VersionController {
+  private appVersionService: AppVersionService;
+
+  constructor(appVersionService: AppVersionService) {
+    this.appVersionService = appVersionService;
+  }
+
+  @Get()
+  async get(): Promise<{ version: string }> {
+    const version = await this.appVersionService.fetchIosAppStoreVersion();
+    return { version };
+  }
+}
+

src/api/controllers/index.ts

@@ -13,6 +13,7 @@ import { TransactionReviewController } from './TransactionReviewController';
 import { ChatController } from './ChatController';
 import { AuthTokenController } from './AuthToken';
 import { SearchController } from './SearchController';
+import { VersionController } from './VersionController';
 
 export const controllers = [
   AuthController,
@@ -26,6 +27,7 @@ export const controllers = [
   RequestController,
   ReportController,
   SearchController,
+  VersionController,
   UserController,
   UserReviewController,
   TransactionController,

src/constants.ts

@@ -0,0 +1,3 @@
+export const ITUNES_LOOKUP_URL =
+  "https://itunes.apple.com/lookup?bundleId=com.cornellappdev.resell";
+

src/services/AppVersionService.ts

@@ -0,0 +1,41 @@
+import { Service } from "typedi";
+import { HttpError } from "routing-controllers";
+import fetch from "node-fetch";
+
+import { ITUNES_LOOKUP_URL } from "../constants";
+
+interface ITunesLookupResult {
+  resultCount: number;
+  results: Array<{ version?: string }>;
+}
+
+@Service()
+export class AppVersionService {
+  public async fetchIosAppStoreVersion(): Promise<string> {
+    let response: fetch.Response;
+    try {
+      response = await fetch(ITUNES_LOOKUP_URL);
+    } catch (_err) {
+      throw new HttpError(502, "Failed to fetch app version from App Store");
+    }
+
+    let data: ITunesLookupResult;
+    try {
+      data = (await response.json()) as ITunesLookupResult;
+    } catch (_err) {
+      throw new HttpError(502, "Failed to parse App Store response");
+    }
+
+    if (!response.ok || !data.results?.length) {
+      throw new HttpError(502, "Failed to fetch app version from App Store");
+    }
+
+    const version = data.results[0]?.version;
+    if (!version) {
+      throw new HttpError(502, "Version not found in App Store response");
+    }
+
+    return version;
+  }
+}
+