Hello everyone. I’m in a Ktor project and I’m trying to install exposed. In which file am I supposed to put this :

val config = HikariConfig().apply {
    jdbcUrl         = "jdbc:<mysql://localhost/dbname>"
    driverClassName = "com.mysql.cj.jdbc.Driver"
    username        = "username"
    password        = "secret"
    maximumPoolSize = 10
}
val dataSource = HikariDataSource(config)
Database.connect(dataSource)

from the documentation here: https://github.com/JetBrains/Exposed/wiki/DataBase-and-DataSource

I guess you can put it anywhere as long as this code is executed when the server starts.

You can also put it in your DI to provide a Database instance for your repositories, especially if you have more than one database. Then you'd use

transaction(db) {}