GraphQL implementation in Haskell
This implementation is relatively low-level by design, it doesn't provide any mappings between the GraphQL types and Haskell's type system and avoids compile-time magic. It focuses on flexibility instead, so other solutions can be built on top of it.
State of the work
For now this library provides:
- Parser for the query and schema languages, as well as a printer for the query language (minimizer and pretty-printer).
- Data structures to define a type system.
- Executor (queries, mutations and subscriptions are supported).
- Validation is work in progress.
- Introspection isn't available yet.
But the idea is to be a Haskell port of
graphql-js.
For a more precise list of currently missing features see issues.
Documentation
API documentation is available through Hackage.
Further documentation will be made available in the Wiki.