automate twitch credential refresh

nuxt.config.ts

@@ -29,6 +29,8 @@ export default defineNuxtConfig({
 
     scheduledTasks: {
       "0 * * * *": ["cleanup:invitations"],
+      // every two hours, check if creds need updating
+      "0 */2 * * *": ["metadata:refreshCredentials"],
     },
   },
 

server/internal/metadata/igdb.ts

@@ -132,6 +132,7 @@ export class IGDBProvider implements MetadataProvider {
   private client_id: string;
   private client_secret: string;
   private access_token: string;
+  private access_token_expire: moment.Moment;
 
   constructor() {
     const client_id = process.env.IGDB_CLIENT_ID;
@@ -148,6 +149,7 @@ export class IGDBProvider implements MetadataProvider {
     this.client_secret = client_secret;
 
     this.access_token = "";
+    this.access_token_expire = moment();
     this.authWithTwitch();
   }
 
@@ -167,9 +169,17 @@ export class IGDBProvider implements MetadataProvider {
     console.log(inspect(response.data));
 
     this.access_token = response.data.access_token;
-    // TODO: handle token expiration, time in seconds is provided, on a long running server
-    // this WILL be an issue. Can use node timers, or maybe nuxt tasks? problem is
-    // that idk if tasks can be variable like twitch wants, expires_in is variable
+    this.access_token_expire = moment().add(
+      response.data.expires_in,
+      "seconds"
+    );
+  }
+
+  public async refreshCredentials() {
+    const futureTime = moment().add(1, "day");
+
+    // if the token expires before this future time (aka soon), refresh
+    if (this.access_token_expire.isBefore(futureTime)) this.authWithTwitch();
   }
 
   private async request<T extends Object>(

server/internal/metadata/index.ts

@@ -51,6 +51,8 @@ export abstract class MetadataProvider {
   abstract fetchDeveloper(
     params: _FetchDeveloperMetadataParams
   ): Promise<DeveloperMetadata>;
+
+  abstract refreshCredentials?: () => void;
 }
 
 export class MetadataHandler {
@@ -253,6 +255,17 @@ export class MetadataHandler {
       `No metadata provider found a ${databaseName} for "${query}"`
     );
   }
+
+  /**
+   * Refresh creds for all providers that need it
+   */
+  public refreshCredentials() {
+    for (const provider of this.providers.values()) {
+      if (provider.refreshCredentials) {
+        provider.refreshCredentials();
+      }
+    }
+  }
 }
 
 export const metadataHandler = new MetadataHandler();

server/tasks/metadata/refreshCredentials.ts

@@ -0,0 +1,12 @@
+import { metadataHandler } from "~/server/plugins/metadata";
+
+export default defineTask({
+  meta: {
+    name: "metadata:refreshCredentials",
+    description: "Refresh credentials for metadata providers",
+  },
+  run({ payload, context }) {
+    metadataHandler.refreshCredentials();
+    return { result: "Success" };
+  },
+});