servant – A Type-Level Web DSLΒΆ

servant is a set of Haskell libraries for writing type-safe web applications but also deriving clients (in Haskell and other languages) or generating documentation for them, and more.

This is achieved by taking as input a description of the web API as a Haskell type. Servant is then able to check that your server-side request handlers indeed implement your web API faithfully, or to automatically derive Haskell functions that can hit a web application that implements this API, generate a Swagger description or code for client functions in some other languages directly.

If you would like to learn more, click the tutorial link below.