refactor: allow only one token per user

packages/nocodb/src/helpers/catchError.ts

@@ -415,6 +415,8 @@ export default function (
         return res.status(400).json({ msg: e.message, errors: e.errors });
       } else if (e instanceof UnprocessableEntity) {
         return res.status(422).json({ msg: e.message });
+      } else if (e instanceof NotAllowed) {
+        return res.status(405).json({ msg: e.message });
       }
       next(e);
     }
@@ -423,6 +425,8 @@ export default function (
 
 export class BadRequest extends Error {}
 
+export class NotAllowed extends Error {}
+
 export class Unauthorized extends Error {}
 
 export class Forbidden extends Error {}
@@ -476,4 +480,8 @@ export class NcError {
   static unprocessableEntity(message = 'Unprocessable entity') {
     throw new UnprocessableEntity(message);
   }
+
+  static notAllowed(message = 'Not allowed') {
+    throw new NotAllowed(message);
+  }
 }

packages/nocodb/src/services/api-tokens.service.ts

@@ -9,7 +9,7 @@ import { ApiToken } from '~/models';
 
 @Injectable()
 export class ApiTokensService {
-  constructor(private readonly appHooksService: AppHooksService) {}
+  constructor(protected readonly appHooksService: AppHooksService) {}
 
   async apiTokenList(param: { userId: string }) {
     return await ApiToken.list(param.userId);