Introduction
GraphQL is a query language for APIs enabling flexible data retrieval.
Read more →Welcome to GraphQL Guru - Your Free GraphQL Learning Hub
Explore free tutorials and resources to master GraphQL. Designed for beginners and intermediate learners, start coding with GraphQL Guru today!
GraphQL Basics
Setup
GraphQL setup uses servers like Apollo or GraphQL Yoga.
Read more →Syntax
GraphQL syntax uses queries and mutations with type definitions.
Read more →Queries
GraphQL queries fetch specific fields from server schemas.
Read more →Mutations
GraphQL mutations modify server data with input types.
Read more →Variables
GraphQL variables use $ for dynamic query inputs.
Read more →Data Types
GraphQL data types include Int String and custom objects.
Read more →Operators
GraphQL operators include ! for non-null and [] for lists.
Read more →Comments
GraphQL comments use # for query annotations.
Read more →Errors
GraphQL errors use error fields in response payloads.
Read more →Debugging
GraphQL debugging uses tools like GraphiQL for query testing.
Read more →Best Practices
GraphQL best practices include specific queries, versioning.
Read more →Security Basics
GraphQL security prevents overfetching with query depth limits.
Read more →GraphQL Schema
Scalars
GraphQL scalars define basic types like Int and String.
Read more →Objects
GraphQL objects define structured types with fields.
Read more →Interfaces
GraphQL interfaces define shared fields for polymorphic types.
Read more →Unions
GraphQL unions group unrelated types for flexible queries.
Read more →Enums
GraphQL enums define fixed sets of allowed values.
Read more →Input Types
GraphQL input types specify mutation input structures.
Read more →Lists
GraphQL lists use [Type] for arrays of data.
Read more →Non-Null Types
GraphQL non-null types enforce required fields with !.
Read more →Schema Definition
GraphQL schema defines queries mutations and types.
Read more →Schema Stitching
GraphQL schema stitching combines multiple schemas into one.
Read more →Federation
GraphQL federation distributes schemas across microservices.
Read more →Schema Validation
GraphQL schema validation ensures type and field consistency.
Read more →GraphQL Queries
Query Fields
GraphQL query fields map to resolver functions for data.
Read more →Nested Queries
GraphQL nested queries fetch related data with field nesting.
Read more →Aliases
GraphQL aliases rename fields in query responses.
Read more →Fragments
GraphQL fragments reuse field selections in queries.
Read more →Inline Fragments
GraphQL inline fragments handle polymorphic types in queries.
Read more →Directives
GraphQL directives like @include control query execution.
Read more →Query Validation
GraphQL query validation checks syntax and field existence.
Read more →GraphQL Mutations
Mutation Fields
GraphQL mutation fields modify data with resolver logic.
Read more →Input Objects
GraphQL input objects structure complex mutation inputs.
Read more →Mutation Responses
GraphQL mutation responses return modified data or errors.
Read more →GraphQL Resolvers
Resolvers
GraphQL resolvers map fields to data sources or logic.
Read more →Resolver Arguments
GraphQL resolver arguments pass query variables to logic.
Read more →Context
GraphQL context shares data like auth across resolvers.
Read more →Data Sources
GraphQL data sources connect to databases or APIs.
Read more →GraphQL Servers
Apollo Server
GraphQL Apollo Server builds APIs with schema and resolvers.
Read more →GraphQL Yoga
GraphQL Yoga provides a lightweight server for Node.js.
Read more →Relay
GraphQL Relay adds pagination and cursors for scalability.
Read more →GraphQL Subscriptions
Subscriptions
GraphQL subscriptions enable real-time updates via WebSockets.
Read more →Subscription Fields
GraphQL subscription fields stream data with resolver logic.
Read more →PubSub
GraphQL PubSub manages subscription events with publish-subscribe.
Read more →GraphQL Introspection
Introspection
GraphQL introspection queries schema metadata with __type.
Read more →Introspection Queries
GraphQL introspection queries fetch type and field details.
Read more →GraphQL Security
Authentication
GraphQL authentication uses JWT or OAuth in resolvers.
Read more →Authorization
GraphQL authorization enforces access with resolver logic.
Read more →Rate Limiting
GraphQL rate limiting restricts queries with server middleware.
Read more →Query Depth
GraphQL query depth limits prevent excessive nested queries.
Read more →GraphQL Performance
Data Loader
GraphQL Data Loader batches requests to avoid N+1 issues.
Read more →Caching
GraphQL caching uses Apollo cache for query performance.
Read more →Query Optimization
GraphQL query optimization avoids overfetching with specific fields.
Read more →GraphQL Pagination
Pagination
GraphQL pagination uses cursor or offset-based approaches.
Read more →Cursor Pagination
GraphQL cursor pagination uses edges and cursors for scalability.
Read more →Offset Pagination
GraphQL offset pagination uses limit and offset for lists.
Read more →Relay Connection
GraphQL Relay connection model standardizes pagination with edges.
Read more →GraphQL Testing
Testing
GraphQL testing uses tools like Postman or Apollo Client.
Read more →Unit Testing
GraphQL unit testing validates resolvers with mock data.
Read more →Integration Testing
GraphQL integration testing checks queries with server endpoints.
Read more →Mocking
GraphQL mocking uses mock resolvers for isolated tests.
Read more →Query Testing
GraphQL query testing validates query responses with assertions.
Read more →Mutation Testing
GraphQL mutation testing verifies data changes with assertions.
Read more →Subscription Testing
GraphQL subscription testing checks real-time updates.
Read more →GraphQL Clients
Apollo Client
GraphQL Apollo Client queries APIs with React or Node.js.
Read more →Relay Client
GraphQL Relay Client optimizes queries with fragments.
Read more →URQL
GraphQL URQL provides lightweight client for React apps.
Read more →GraphQL Tools
GraphiQL
GraphQL GraphiQL offers an interactive query interface.
Read more →Playground
GraphQL Playground tests queries with schema introspection.
Read more →Voyager
GraphQL Voyager visualizes schema relationships interactively.
Read more →Codegen
GraphQL Codegen generates typed client code from schemas.
Read more →GraphQL Examples
Query
GraphQL query fetches user data with specific fields.
Read more →Mutation
GraphQL mutation creates a post with input object.
Read more →Subscription
GraphQL subscription streams new comments in real-time.
Read more →Nested Query
GraphQL nested query fetches user posts with author details.
Read more →Fragment Query
GraphQL fragment query reuses fields for user data.
Read more →Paginated Query
GraphQL paginated query fetches posts with cursor-based edges.
Read more →Authenticated Query
GraphQL authenticated query uses JWT for user data access.
Read more →Shopify Query
GraphQL Shopify query fetches products using Storefront API.
Read more →Dynamic Query
GraphQL dynamic query uses variables for flexible filtering.
Read more →Federated Query
GraphQL federated query combines data from microservices.
Read more →Explore Our Tools
GraphQL Code Commenter
This page provides the GraphQL Code Commenter tool. Utilize it for your tasks.
Go to tool →GraphQL Directive Explainer
This page provides the GraphQL Directive Explainer tool. Utilize it for your tasks.
Go to tool →GraphQL Error Explainer
This page provides the GraphQL Error Explainer tool. Utilize it for your tasks.
Go to tool →GraphQL Query Complexity Analyzer
This page provides the GraphQL Query Complexity Analyzer tool. Utilize it for your tasks.
Go to tool →GraphQL Query Formatter
This page provides the GraphQL Query Formatter tool. Utilize it for your tasks.
Go to tool →GraphQL Schema Reference
This page provides the GraphQL Schema Reference tool. Utilize it for your tasks.
Go to tool →GraphQL Schema Validator
This page provides the GraphQL Schema Validator tool. Utilize it for your tasks.
Go to tool →SQL to GraphQL Query Converter
This page provides the SQL to GraphQL Query Converter tool. Utilize it for your tasks.
Go to tool →