mysql

Connecting JavaScript and MySQL with ADBC

Instructions

Tip

If you already have a MySQL instance running, skip the steps to install MySQL, start it, load data, and stop it.

Prerequisites

1. Install Node.js (version 22 or later)

   • Alternatively, you can use Bun or Deno

2. Install dbc

Set up MySQL

1. Install Docker

2. Start a MySQL instance:

   docker run -d --rm --name some-mysql -e MYSQL_ROOT_PASSWORD=my-secret-pw -p 3306:3306 mysql

3. Create a table in MySQL and load data into it:

   cat games.sql | docker exec -i some-mysql mysql --user=root --password=my-secret-pw

Connect to MySQL

1. Install the MySQL ADBC driver:

   dbc install mysql

2. Install dependencies:

   npm --prefix ../.. install

3. Customize the script main.js as needed

   • Change the connection arguments in databaseOptions
     • Format uri according to the DSN (Data Source Name) format used by Go-MySQL-Driver, or keep it as is to use the data included with this example
   • If you changed which database you're connecting to, also change the SQL SELECT statement in conn.query()

4. Run the script:

   Node.js:

   node main.js

   Bun:

   bun run main.js

   Deno:

   deno run --allow-ffi --allow-env main.js

Clean up

Stop the Docker container running MySQL:

docker stop some-mysql