feat: Introduce reset and verify connection mutations

packages/backend/src/graphql/mutations/verify-connection.ts

@@ -0,0 +1,35 @@
+import { GraphQLString, GraphQLNonNull } from 'graphql';
+import Connection from '../../models/connection';
+import connectionType from '../types/connection';
+import RequestWithCurrentUser from '../../types/express/request-with-current-user';
+
+type Params = {
+  id: string
+}
+const verifyConnectionResolver = async (params: Params, req: RequestWithCurrentUser) => {
+  let connection = await Connection.query().findOne({
+    user_id: req.currentUser.id,
+    id: params.id
+  })
+
+  const appClass = (await import(`../../apps/${connection.key}`)).default;
+
+  const appInstance = new appClass(connection.data)
+  const verifiedCredentials = await appInstance.verifyCredentials();
+
+  connection = await connection.$query().patchAndFetch({
+    data: verifiedCredentials
+  })
+
+  return connection;
+}
+
+const verifyConnection = {
+  type: connectionType,
+  args: {
+    id: { type: GraphQLNonNull(GraphQLString) }
+  },
+  resolve: (_: any, params: Params, req: RequestWithCurrentUser) => verifyConnectionResolver(params, req)
+};
+
+export default verifyConnection;