yoga-express-middleware.example.ts

yoga-express-middleware.example.ts

#!/usr/bin / env node
import express from 'express';
import cors from 'cors';
import bodyParser from 'body-parser';
import '@lib/env';
import { authChecker } from './auth-checker';
import environmentErrorReporter from '@lib/environmentErrorReporter';
import { appDataSource } from '@server/datasource';
import { buildSchema } from 'type-graphql';
import { resolvers } from './modules/resolvers';
import { tokenMiddleware } from '../middleware/token.middleware';
import { createYoga } from 'graphql-yoga';
const env = process.env;
import { context } from './context';
import { graphqlUploadExpress } from 'graphql-upload-ts';

const startServer = async () => {
    environmentErrorReporter.report(new Error());
    console.time('main');
    console.log(`current environment: ${env.NODE_ENV}`);
    // TypeORM DataSource
    await appDataSource.initialize();

    // Express Server
    const app = express();

    // TypeGraphQL Schema Builder
    const schema = await buildSchema({
        resolvers,
        authChecker,
    });

    // GraphQL Yoga
    const yoga = createYoga({
        schema,
        context,
        graphiql: process.env.NODE_ENV === 'production' ? false : true,
    });

    // Middlewares of Express
    app.use(
        cors({
            origin: (_requestOrigin, callback) => callback(null, true),
        }),
        bodyParser.json({ limit: '100mb' }),
        bodyParser.urlencoded({ limit: '50mb', extended: true }),
        express.static('public')
    );
    app.use(graphqlUploadExpress());
    app.use('/graphql', (req, res, next) => tokenMiddleware(req, res, next));
    app.use('/graphql', (req, res) => yoga(req, res));

    // Listener of Express
    app.listen(env.SERVER_PORT, () => {
        console.info(`# app server listening at http://localhost:${env.SERVER_PORT}/graphql`);
        console.timeEnd('main');
        console.log(`${env.NODE_ENV} server`);
    });
};

// Initialize server
startServer().catch(err => {
    console.error(err);
    process.exit(1);
});