firebase-tools/templates/init/functions/typescript/index-ongraphrequest.ts

Command-Line Interface for Firebase

/**
 * Import the onGraphRequest function trigger from its submodules:
 *
 * import {onGraphRequest} from "firebase-functions/dataconnect/graphql";
 *
 * See a full list of supported triggers at https://firebase.google.com/docs/functions
 */

import {setGlobalOptions} from "firebase-functions";
import {
  FirebaseContext,
  onGraphRequest,
} from "firebase-functions/dataconnect/graphql";

// Start writing functions
// https://firebase.google.com/docs/functions/typescript

// For cost control, you can set the maximum number of containers that can be
// running at the same time. This helps mitigate the impact of unexpected
// traffic spikes by instead downgrading performance. This limit is a
// per-function limit. You can override the limit for each function using the
// `maxInstances` option in the function's options, e.g.
// `onRequest({ maxInstances: 5 }, (req, res) => { ... })`.
setGlobalOptions({maxInstances: 10});

const opts = {
  schemaFilePath: "dataconnect/schema___resolverId__/schema.gql",
  resolvers: {
    query: {
      // This resolver function populates the data for the "hello" field
      // defined in your GraphQL schema located at schemaFilePath.
      hello(
        _parent: unknown,
        args: Record<string, unknown>,
        _contextValue: FirebaseContext,
        _info: unknown
      ): string {
        return `Hello ${args.name}!`;
      },
    },
  },
};

export const __resolverIdWithUnderscores__ = onGraphRequest(opts);