absinthe_showcase

This is a showcase for Absinthe

Features

• Battery included

  • You can soon try it in Docker Compose.

• Written in the latest libraries:

  • OTP 21, Elixir 1.7.4
  • Phoenix 1.4, Ecto 3.0
  • Absinthe 1.4.13

• Avoiding N+1 problem with dataloader

• Authorizing user permission with a custom middleware

• Count the number of records regardless of LIMIT/OFFSET specified, which is very useful in pagination

• Supports multistage query such as {questions{users{} answers{}}}, {me {users{} questions{} answers{}}}, {questions{answers{users{}}}}, etc.

• Various queries/mutations

  • mutations
    • login with email and password; supports two permissions
      • normal user
      • admin user
    • create user account
      • only admin user can create new accounts
      • guests(no login user) or normal users are rejected
  • query
    • various queries includes total record counts

How to try this?

• build docker compose
  • How to build Docker Compose?
• setup table and seed data
  • mix deps.get && mix deps.compile
  • mix ecto.setup
• access graphiql
  • http://localhost:5001/graphiql
• Enjoy!

Schemas

• Notice
  • users.plain_pasword: raw password(not hashed) on purpose
  • users.permission: 0 = normal user, 1 = admin user
  • all tables, user, question and answer, have total_count field as a virtual field. In case totalCount is specified, the count willl be stored in the field.

GraphQL Schemas

• GraphQL Schema

Queries and Mutations

• mutations

  • login
  • create user
  • update user

• queries

  • query question lists
  • query question detail and answers
  • profile page
  • other's profile page