Rocket.Chat/app/api/server/v1/oauthapps.js

import { API } from '../api';
import { findOAuthApps, findOneAuthApp } from '../lib/oauthApps';

API.v1.addRoute('oauth-apps.list', { authRequired: true }, {
	get() {
		return API.v1.success({
			oauthApps: Promise.await(findOAuthApps({ uid: this.userId })),
		});
	},
});

API.v1.addRoute('oauth-apps.get', { authRequired: true }, {
	get() {
		const { clientId, appId } = this.queryParams;
		if (!clientId && !appId) {
			return API.v1.failure('At least one of the query parameters "clientId" or "appId" is required.');
		}

		return API.v1.success({
			oauthApp: Promise.await(findOneAuthApp({ clientId, appId })),
		});
	},
});