Try using wreq[0] instead. Here's also a post[1] which describes someone else facing the same pains earlier that you're currently having. For anything to do with JSON, you need Aeson[2]. For working with databases, Persistent[3] and Esqueleto[4] (they're designed to work together) work great.

[0]: https://hackage.haskell.org/package/wreq

[1]: https://bitemyapp.com/blog/haskell-is-not-trivial-not-unfair...

[2]: https://artyom.me/aeson

[3]: https://hackage.haskell.org/package/persistent

[4]: https://hackage.haskell.org/package/esqueleto