Attempt to fix invalid bearer token

backend/src/services/sinusbot.service.ts

@@ -28,11 +28,7 @@ export class SinusBotService {
     if (this.bearer == null) {
       logger.info(`Hey! I'm trying to get my Bearer token!`);
       await this.login()
-        .then(token => this.bearer = token)
-        .catch(error => {
-          logger.error(`Oh oh! Something went wrong while fetching Bearer token.`, error);
-          throw this.createHttpException(HttpStatus.UNAUTHORIZED, `Fetching Bearer token for Sinusbot failed.`);
-        });
+        .then(token => this.bearer = token);
       logger.debug(
         `Seems like I have my Bearer token! 
         Looks like it's ${this.bearer == null ? 'undefined' : 'not undefined'}`
@@ -46,7 +42,14 @@ export class SinusBotService {
       .then(data => this.consumeTunakillResponse(data))
       .catch(error => {
         logger.error(`I couldn't fetch user data.`, error);
-        throw this.createHttpException(HttpStatus.INTERNAL_SERVER_ERROR, error.message);
+
+        if (error instanceof RequestError && error.response && error.response.status === 401) {
+          logger.info(`Trying to refresh token...`);
+          this.bearer = undefined;
+          this.login().then(token => this.bearer = token);
+        } else {
+          throw this.createHttpException(HttpStatus.INTERNAL_SERVER_ERROR, error.message);
+        }
       });
   }
 
@@ -78,7 +81,11 @@ export class SinusBotService {
     return await fetch(this.loginURL, this.requestConfig(JSON.stringify(body)))
       .then(res => this.checkStatus(res))
       .then(res => res.json())
-      .then(data => data.token);
+      .then(data => data.token)
+      .catch(error => {
+        logger.error(`Oh oh! Something went wrong while fetching Bearer token.`, error);
+        throw this.createHttpException(HttpStatus.UNAUTHORIZED, `Fetching Bearer token for Sinusbot failed.`);
+      });
   }
 
   private async fetchDefaultBotId(): Promise<string> {