hasql

An efficient PostgreSQL driver and a flexible mapping API

https://github.com/nikita-volkov/hasql

Version on this page:1.3.0.1
LTS Haskell 23.25:1.8.1.4
Stackage Nightly 2025-06-18:1.9.1.2
Latest on Hackage:1.9.1.2

See all snapshots hasql appears in

MIT licensed and maintained by Nikita Volkov
This version can be pinned in stack with:hasql-1.3.0.1@sha256:4a57f7efbfad07f1e23e5484868a4dac409cf0ea6cf58e524826d873c13cb634,7051

Module documentation for 1.3.0.1

  • Hasql
    • Hasql.Connection
    • Hasql.Decoders
    • Hasql.Encoders
    • Hasql.Session
    • Hasql.Statement

This package is the root of the "hasql" ecosystem.

The API is completely disinfected from exceptions. All error-reporting is explicit and is presented using the Either type.

The version 1 is completely backward-compatible with 0.19.