GraphQL API Design Guide | Schema, Queries & Mutations…

Flexible, Efficient API Development

Understanding GraphQL. GraphQL is a query language and runtime for APIs that allows clients to request exactly the data they need.

Developed by Facebook.

A Single Endpoint for All Operations, Uses a Type System

structure. GraphQL solves over-fetching and under-fetching problems common with REST APIs, making it more efficient.

What is the difference between GraphQL and REST?

live demo · related simulation● LIVE

Mutation, Subscription, and Field Resolvers

What is the N+1 query problem in GraphQL?

The N+1 problem occurs when a query fetches a list of items (N items), then fetches related data for each item.

Frequently asked questions

What is resolver-level authorization in GraphQL?

with resolver-level authorization checks.

What is GraphQL introspection?

Introspection allows querying the GraphQL schema itself.

Programmatically. This enables powerful developer tools like GraphiQL and GraphQL Playground. Introspection is enabled

programmatically. This enables powerful developer tools like GraphiQL and GraphQL Playground. Introspection is enabled

▶ Try it live

Everything above runs in your browser — open Force-Directed Graph and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open Force-Directed Graph simulation