tjweir/web-haskell

Modern webserver in Haskell: Graphql + Postgresql + Authentication + ...

Haskell Webserver Skeleton

• Graphql API
  • morpheus-graphql (https://github.com/morpheusgraphql/morpheus-graphql)
  • Schema is in schema/schema.graphql

  type User {
    id: Int!
    email: String!
    name: String!
  }
  
  type Session {
    token: String!
    user: User!
  }
  
  type Query {
    login(email: String!, password: String!): Session!
  }
  
  type Mutation {
    register(email: String!, password: String!, name: String!): Session!
  }

• Database:
  • Postgresql + Opaleye
  • Migration using dbmate (https://github.com/amacneil/dbmate)
  • Pooling using Data.Pool

The skeleton wires up:

• Reading .env using envy
• Database
• Graphql API
  • login(email: String, password: String) { token user { id } }
  • register(email: String, password: String, name: String) { token user { id } }
• Authentication using JWT
• Monad transformers