Node.js GraphQL Apollo Server API Tutorial #1: 🚀 Introduction to GraphQL in Node.js

Introduction to GraphQL

GraphQL is a query language for APIs that allows clients to request exactly the data they need, nothing more and nothing less. It provides a more flexible and efficient alternative to REST APIs, where the client has to work with predefined endpoints and fixed data structures.

Key Benefits of GraphQL:

Single Endpoint: Unlike REST, which may require multiple endpoints, GraphQL operates on a single endpoint.
Precise Data Fetching: Clients can ask for specific fields and nested resources, reducing over-fetching or under-fetching of data.
Self-Documenting: GraphQL APIs are introspective, meaning developers can explore the API schema to understand what queries and mutations are available.

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