| Introduction |
What is GraphQL, Features, Benefits, Use cases |
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| GraphQL vs REST |
Differences, Advantages, Limitations, When to use |
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| Queries |
Basics, Nested queries, Arguments, Aliases |
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| Mutations |
Create, Update, Delete operations, Input types |
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| Subscriptions |
Real-time updates, WebSockets, Implementation |
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| Schema |
Types, Fields, Query type, Mutation type, Subscription type |
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| Types |
Scalar types, Object types, Enum, Interface, Union |
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| Resolvers |
Resolver functions, Arguments, Context, Parent object |
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| Variables |
Input variables, Default values, Variable types |
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| Directives |
@include, @skip, @deprecated, Custom directives |
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| Error Handling |
GraphQL errors, Error codes, Custom errors |
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| Authentication & Authorization |
JWT, OAuth, Role-based access, Field-level security |
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| Performance Optimization |
Query batching, Caching, DataLoader, Complexity analysis |
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| Tooling & Ecosystem |
Apollo, Relay, GraphiQL, GraphQL Playground |
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| Best Practices |
Schema design, Versioning, Pagination, Security |
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