GraphiQL-Rails

Mount the GraphiQL IDE in Ruby on Rails.

Installation

Add to your Gemfile:

gem "graphiql-rails"

Usage

Mount the Engine

Add the engine to routes.rb:

# config/routes.rb
Rails.application.routes.draw do
  # ...
  if Rails.env.development?
    mount GraphiQL::Rails::Engine, at: "/graphiql", graphql_path: "/your/endpoint"
  end
end

• at: is the path where GraphiQL will be served. You can access GraphiQL by visiting that path in your app.
• graphql_path: is the path to the GraphQL endpoint. GraphiQL will send queries to this path.

Configuration

You can override GraphiQL::Rails.config values in an initializer (eg, config/initializers/graphiql.rb). The configs are:

• query_params (boolean, default false): if true, the GraphQL query string will be persisted the page's query params

• initial_query (string, default nil): if provided, it will be rendered in the query pane for a visitor's first visit

• csrf (boolean, default true): include X-CSRF-Token in GraphiQL's HTTP requests

• headers (hash, String => Proc): procs to fetch header values for GraphiQL's HTTP requests, in the form (view_context) -> { ... }. For example:

  GraphiQL::Rails.config.headers['Authorization'] = -> (context) { "bearer #{context.cookies['_graphql_token']}" }

Development

• Tests: rake test
• Update GraphiQL & dependencies: rake update_graphiql