Lonk

Lonk is a simple database library for non-blocking Kotlin. SQL is a great tool for working with relational databases, but JDBC and R2DBC are painful to use directly. Lonk provides a thin layer over both: you write plain SQL, and Lonk maps the results onto your own classes using Kotlin reflection, with no annotations or generated code required. Every operation is a suspend function, so it composes naturally with coroutines.

Warning

Lonk is in early development. Releases before 1.0 may introduce breaking changes – check the release notes before upgrading.

• GitHub: https://github.com/komu/lonk

Quick example

val db = JdbcConnectionProvider(dataSource)

val departments = db.withTransaction { conn ->
    conn.query("select id, name from department order by name").findAll<Department>()
}

Where Department is just a plain class with a matching constructor:

class Department(val id: Int, val name: String)

See the Basic Usage page to get started.