Fail to connect database to Typescript ES module

When working with TypeScript ES modules, you may encounter issues when trying to connect to a database. This can be frustrating, but fear not! There are several solutions to this problem that you can try.

Solution 1: Using a Database ORM

One way to connect your database to a TypeScript ES module is by using a database ORM (Object-Relational Mapping) library. ORMs provide a higher-level abstraction over the database, making it easier to work with and connect to your TypeScript ES module.

Here’s an example using the popular TypeORM library:


import { createConnection } from "typeorm";

async function connectToDatabase() {
  try {
    const connection = await createConnection({
      type: "mysql",
      host: "localhost",
      port: 3306,
      username: "root",
      password: "password",
      database: "mydatabase",
      entities: [__dirname + "/entities/*.ts"],
      synchronize: true,
    });

    console.log("Connected to database!");
  } catch (error) {
    console.error("Failed to connect to database:", error);
  }
}

connectToDatabase();

This code snippet demonstrates how to use TypeORM to connect to a MySQL database. You can customize the connection options based on your specific database configuration.

Solution 2: Using a Database Driver

If you prefer a lower-level approach, you can use a database driver directly in your TypeScript ES module. This gives you more control over the connection process.

Here’s an example using the popular mysql2 library:


import { createConnection, Connection } from "mysql2/promise";

async function connectToDatabase() {
  try {
    const connection: Connection = await createConnection({
      host: "localhost",
      port: 3306,
      user: "root",
      password: "password",
      database: "mydatabase",
    });

    console.log("Connected to database!");
  } catch (error) {
    console.error("Failed to connect to database:", error);
  }
}

connectToDatabase();

This code snippet demonstrates how to use the mysql2 library to connect to a MySQL database. Again, you can customize the connection options based on your specific database configuration.

By using either a database ORM or a database driver, you should be able to successfully connect your database to your TypeScript ES module. Remember to install the necessary dependencies using npm or yarn before running your code.

Happy coding!

Fail to connect database to Typescript ES module