I am creating my first application in Node with Graphql, and for now I have only written this code:

import 'reflect-metadata';
const express = require('express');
import { Express } from 'express';
import { ApolloServer } from 'apollo-server-express';
import { ApolloServerPluginLandingPageGraphQLPlayground } from 'apollo-server-core';
import { buildSchema } from 'type-graphql';
import { ActivityResolver } from './resolvers/activity';
import { createConnection } from 'typeorm';

const main = async () => {
    // Setup database connection
    const conn = await createConnection({
        type: 'postgres',
        database: 'deliveryapi',
        entities: [],
        logging: true,
        synchronize: true,
        username: process.env.USERNAME || 'postgres', 
        password: process.env.PASSWORD || 'Juventus',
        port: 5432,
    });

    // Create express application for GraphQL server
    const apollo: ApolloServer = new ApolloServer({
        schema: await buildSchema({
            resolvers: [ActivityResolver],
            validate: false,
        }),
        plugins: [ApolloServerPluginLandingPageGraphQLPlayground()],
    })
    const app: Express = express();

    // All application required varibles
    const PORT = process.env.PORT || 5000;

    // Middleware and routes
    await apollo.start();
    apollo.applyMiddleware({ app });
    app.use(express.json());
    app.get('/', (req, res) => {res.send("Hello World")});

    // Start server
    app.listen(PORT, () => {console.log(`Server started on port ${PORT} and connected to database`)});

}

main().catch(err => {console.error("Error: ", err)});

The problem is that, in VSCode there is a problem in this line: import { createConnection } from 'typeorm';. It is deleted and it says that it is deprecated, and I can't understand why, an if that affect the code. I am using Typescript.

Can someone explain please? Thank you

CodePudding user response：

Since version 0.3.0 of typeorm, createConnection is deprecated in favour of the new DataSoure API. See the Changelog for 0.3.0 https://github.com/typeorm/typeorm/blob/master/CHANGELOG.md

Also have a look at: https://typeorm.io/data-source