@graphless/gcloud/gateway.js

GraphQL Framework for Serverless (Google Cloud Functions)

const { ApolloServer } = require("apollo-server-cloud-functions");
const { ApolloGateway } = require("@apollo/gateway");
const { getGraphlessConfig } = require("@graphless/core");
module.exports = () => {
  const config = getGraphlessConfig();
  const services = config.app.graphs;
  if (process.env.NODE_ENV === "production") {
    const serviceList = [];
    for (const key in services) {
      serviceList.push({
        name: key,
        // url: process.env.CLOUD_URL
        url: process.env.CLOUD_URL + "/" + key,
      });
    }

    const gateway = new ApolloGateway({
      serviceList,
    });

    const server = new ApolloServer({
      gateway,
      subscriptions: false,
      playground: true,
      introspection: true,
      debug: true,
    });

    return server.createHandler();
  }

  return loadDevGateway();
};

function loadDevGateway() {
  if (process.env.GRAPHLESS_LOAD_GATEWAY) {
    const GRAPHLESS_LOCAL_GRAPHS_MAP = JSON.parse(
      process.env.GRAPHLESS_LOCAL_GRAPHS_MAP
    );
    const serviceList = GRAPHLESS_LOCAL_GRAPHS_MAP.map((graph) => {
      return graph;
    });

    const gateway = new ApolloGateway({
      serviceList,
    });

    const server = new ApolloServer({
      gateway,
      subscriptions: false,
      playground: true,
      introspection: true,
      debug: true,
    });

    return server.createHandler();
  }

  return (req, res) => {
    res.send("Not Ready");
  };
}