purescript-mongo

Typesafe Mongo library for Purescript

usage

File test/Example.purs has an example demonstrating how to connect to a DB.

queries

This library exposes a Query type that is parametrized by the type that it's meant to query against. The Database.Mongo.Query module contains a DSL for building those. By defining your schema and using it with the DSL you can ensure that your queries are correct.

Example:

import Database.Mongo.Query (Query)
import Database.Mongo.Query as Q

type Item = { id :: Int, name :: String, inner :: Inner  }

type Inner = { number :: Number } 

searchQuery :: Query Item
searchQuery = Q.or
  [ Q.by { id: Q.eq 26637 }
  , Q.by { inner: { number: Q.lte 10.0 } }
  ]

It is checked during compile-time whether all the fields exist and have correct types.