medium-fastify-graphql-index3.ts

// src/index.ts
import fastify, {FastifyInstance} from 'fastify';
import {Server, IncomingMessage, ServerResponse} from 'http';
/**
 * Create instance of our Fastify server
 */
export const app: FastifyInstance<Server, IncomingMessage, ServerResponse> = fastify({logger: false});
// ---------------------------------------------------
import mercurius from 'mercurius';
import {makeExecutableSchema} from '@graphql-tools/schema';
import {mergeTypeDefs, mergeResolvers} from '@graphql-tools/merge';
/**
 * Add 'mercurius' to our fastify server
 */
app.register(mercurius, {
    schema: makeExecutableSchema({
        // Merge type definitions from different sources
        typeDefs: mergeTypeDefs([typeDefs, typeDefs2]),
        // Merge resolvers from different sources
        resolvers: mergeResolvers([resolvers, resolvers2]),
    }),
    // Enable the GraphQL Playground
    graphiql: 'playground',
});