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Showing posts from December, 2024

GraphQL Essentials: From Basics to Federation

Greetings! Over the past two years, I have been engaging with GraphQL intermittently, not always as part of day-to-day development. However, now feels like the right time to consolidate key ideas into a comprehensive article. What is GraphQL? GraphQL is a query language for APIs and a runtime for executing those queries based on your data. It provides a more flexible and efficient alternative to traditional REST APIs by allowing clients to request only the data they need, reducing over-fetching and under-fetching. Unlike REST, where endpoints are tightly coupled to specific data structures, GraphQL operates on a single endpoint and allows dynamic queries. A GraphQL server Key Features of GraphQL Single Endpoint: All requests are sent to a single endpoint. Strongly Typed: A schema defines the data structure and enforces types. Declarative Queries: Clients specify the shape of the response they need. Real-time Support: Through subscriptions, clients can receive real-time updates. Introsp...