Write SQL as it is.

A Kotlin SQL client built on Spring Data — interpolated runtime values become bind parameters via a compiler plugin.

It looks like plain string interpolation…

val user: User? = kueryClient
    .sql { +"SELECT * FROM users WHERE user_id = $userId" }
    .singleOrNull()

…but it executes as a parameterized query. A Kotlin compiler plugin rewrites the interpolated runtime value into named parameter binding at compile time — so you get the readability of raw SQL without the risk of SQL injection:

SELECT * FROM users WHERE user_id = :p0  -- :p0 = userId, bound as a named parameter

Why Kuery Client?

• ♥️ Love SQL
  • ORM libraries are convenient, but they each require learning their own DSL, which we believe is a steep cost. Kuery Client emphasizes writing SQL as it is.
• 🛡️ Safe by design
  • Interpolated runtime values are converted into bind parameters by the compiler plugin, so the normal SQL-building path never concatenates them into the SQL text.
• ✅ Compile-time checks
  • The compiler plugin [warns when a SQL string cannot be converted…