What is GraphQL architecture and how does it work?

What is GraphQL architecture and how does it work?

GraphQL architecture is a query language for APIs that allows clients to request only the data they need. It consists of a single endpoint, a schema that defines types and relationships, and resolvers that fetch the data.

What are the main components of GraphQL architecture?

The main components include the GraphQL schema, queries, mutations, subscriptions, and resolvers. The schema defines the structure of the data, while resolvers handle the logic for fetching that data.

How does GraphQL differ from REST?

Unlike REST, which has multiple endpoints for different resources, GraphQL uses a single endpoint and allows clients to specify exactly what data they need, reducing over-fetching and under-fetching.

Can you explain what resolvers are?

Resolvers are functions that are responsible for returning the data for a specific field in the schema. They fetch data from databases or other APIs based on the query.