This Rails 8 example project provides some snippets and suggestions to make good use of graphql-ruby.

• graphql-ruby Error Design and Implementation (Japanese)
• Ensuring that the GraphQL schema is committed and up-to-date
• Rearranged directory structure under /app/graphql/gre/
• Switch ActiveRecord::Base.connected_to(role:) by whether the query is mutation or not
• ObjectTypeRestriction: This prevents unexpected object initialization, e.g. User, Activity, ..
• FieldError: This simplifies resolver implementations that use unions to represent possible application errors, e.g. RegisterUser
• Uniformed Union and Interface Resolution based on ObjectTypeRestriction and FieldError
• InlineUnionTypes provides a way to write possible types of unions inline, e.g. RegisterUser
• have_graphql_response matcher

git clone https://github.com/yubrot/graphql-ruby-example.git
cd graphql-ruby-example
bin/setup # or bin/setup --skip-server; bin/dev
# Open http://127.0.0.1:3000/graphiql on your browser

# Lint
bin/rubocop -a

# Test
bin/rspec

# Update GraphQL Schema
bin/rake graphql:gre:schema:idl