Question 1

How to set up GraphQL in a Ruby on Rails app?

Accepted Answer

Start by adding the graphql-ruby gem to your Gemfile, then generate a schema using rails generate graphql:install. This demo shows a complete example with schema in `/app/graph` and a controller for queries.

Question 2

What is graphql-ruby and how do I use it?

Accepted Answer

graphql-ruby is a popular library for implementing GraphQL APIs in Ruby. It provides tools for defining types, queries, and mutations. This demo illustrates its basic integration in a Rails app, with schema defined in the `/app/graph` directory.

Question 3

GraphQL or REST for my Rails API?

Accepted Answer

GraphQL offers flexible querying and reduces over-fetching, ideal for complex data needs, while REST is simpler for basic CRUD. This demo shows GraphQL integration, but consider your app's requirements and team familiarity.

Question 4

How to add GraphiQL to a Rails application?

Accepted Answer

Use the graphiql-rails gem as shown in this demo. Add it to your Gemfile, mount the engine in routes (e.g., mount GraphiQL::Rails::Engine), and access the interactive IDE at the specified endpoint.

Question 5

Can I use this demo for production?

Accepted Answer

No, it's a learning resource, not production-ready. Use it as a reference, but you'll need to add features like authentication, error handling, and performance tuning for real-world use.

Question 6

How to handle mutations in graphql-ruby?

Accepted Answer

This demo doesn't cover mutations. In graphql-ruby, define mutation types in the schema with input fields and resolvers to handle data changes, similar to queries but with side effects.

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