✨ Create controller

packages/cli/src/api/oauth2Credential.api.ts

@@ -0,0 +1,61 @@
+/* eslint-disable import/no-cycle */
+import express from 'express';
+import { UserSettings } from 'n8n-core';
+import { LoggerProxy } from 'n8n-workflow';
+import { ResponseHelper } from '..';
+import { RESPONSE_ERROR_MESSAGES } from '../constants';
+import { CredentialsHelper } from '../CredentialsHelper';
+import { getLogger } from '../Logger';
+import { OAuthRequest } from '../requests';
+
+export const oauth2CredentialController = express.Router();
+
+/**
+ * Initialize Logger if needed
+ */
+oauth2CredentialController.use((req, res, next) => {
+	try {
+		LoggerProxy.getInstance();
+	} catch (error) {
+		LoggerProxy.init(getLogger());
+	}
+	next();
+});
+
+/**
+ * GET /oauth2-credential/scopes
+ */
+oauth2CredentialController.get(
+	'/scopes',
+	ResponseHelper.send(async (req: OAuthRequest.OAuth2Credential.Scopes): Promise<string[]> => {
+		const { credentialType: type } = req.query;
+
+		if (!type) {
+			LoggerProxy.debug(
+				'Request for OAuth2 credential scopes failed because of missing credential type in query string',
+			);
+
+			throw new ResponseHelper.ResponseError(
+				RESPONSE_ERROR_MESSAGES.NO_CREDENTIAL_TYPE,
+				undefined,
+				400,
+			);
+		}
+
+		if (!type.endsWith('OAuth2Api')) {
+			LoggerProxy.debug(
+				'Request for OAuth2 credential scopes failed because requested credential type is not OAuth2',
+			);
+
+			throw new ResponseHelper.ResponseError(
+				RESPONSE_ERROR_MESSAGES.CREDENTIAL_TYPE_NOT_OAUTH2,
+				undefined,
+				400,
+			);
+		}
+
+		const encryptionKey = await UserSettings.getEncryptionKey();
+
+		return new CredentialsHelper(encryptionKey).getScopes(type);
+	}),
+);