GraphQL

0%
Coding
Theory
Quiz

    Auth & Field Level Security

    • Schema Directive For Role-Based Auth

      Mid

    • Field-Level Authorization in Resolvers

      Mid

    • Mask Credit Card Field Middleware

      Mid

    Schema Design & Types

    • Library API Schema and Resolvers

      Junior

    • FilterInput Input Type for Product Queries

      Junior

    • GraphQL Enum Type And Resolver

      Junior

    • Shopping List CRUD GraphQL Server

      Mid

    • Server-Driven UI Component Interface

      Mid

    • Multi-Tenant Blog Resolvers

      Senior

    Schema Design Performance & Tooling

    • DataLoader for Batched Author Lookups

      Mid

    • SearchResult Union With __resolveType

      Mid

    • Order-Preserving DataLoader Batch Function

      Mid

    • Map Unique Violations to GraphQL Errors

      Mid

    • Mutation Returning Union Result Type

      Mid

    • Node Interface And Type Resolution

      Mid

    • Custom GraphQL Error Classes

      Mid

    • Implement the Bookstore GraphQL Resolvers

      Mid

    • Slow Field Resolution Logger

      Senior

    • Tenant-Aware DataLoader Cache Keys

      Senior

    Custom Scalars & Directives

    • Custom Scalar With Serialize And Parse

      Mid

    • Custom DateTime Scalar

      Mid

    • Custom Email Scalar Type

      Mid

    • oneOf Input for Phone or Email

      Mid

    • Custom PhoneNumber Scalar With E.164 Validation

      Mid

    Input Validation & Query Limits

    • Input Validation Before Resolver

      Mid

    • Query Complexity Validation Rule

      Senior

    • Query Depth Limit Validation Rule

      Senior

    • Query Complexity And Rate-Limit Middleware

      Senior

    Resolvers & Data Fetching

    • Batched WHERE IN Resolver

      Mid

    • Computed totalSpent Field Resolver

      Mid

    Pagination & Search

    • Offset Limit Pagination With Total Count

      Junior

    • Multi-Field Search Query With Pagination

      Mid

    • Relay Cursor Connections Pagination

      Senior

    Mutations & Data Writes

    • CreatePost Mutation And Resolver

      Junior

    • Follow Mutation With Recalculated Follower Count

      Mid

    • Dependency-Gated toggleTask Mutation

      Senior

    • Atomic Post Creation With Tags

      Senior