Dynamic authentication info

[pauldraper]

AWS IAM Authentication uses AWS IAM permissioning to generate a temporary (15 minute) password when connecting to the database.

Ideally, there would be a way to have a credentials provider that generated the credentials for each physical connection.

const pool = new Pool({
  user: 'dbuser',
  host: 'database.server.com',
  database: 'mydb',
  port: 3211,
  async dynamic(config) {
    const password = ''; // retrieve and cache password
    return { ...config, password };
  }
});

[sehrope]

@pauldraper There is 😄 #1926