📘Introduction

In this tutorial, you'll learn how GraphQL and REST differ and why developers choose one over the other. Whether you’re building modern web apps or managing large datasets, understanding these differences is essential for efficient, scalable applications.

🟣 GraphQL

GraphQL (Graph Query Language) is a query language for APIs that allows clients to request exactly the data they need. It uses a single endpoint and a strongly typed schema, providing developers with control and flexibility. It also supports real-time updates through subscriptions, ideal for dynamic apps like chats or dashboards.

Key Features:

  • Single Endpoint: All queries and mutations go through one URL, simplifying routing and versioning.
  • Precise Data Fetching: Clients request exactly the fields they need, avoiding over-fetching or under-fetching.
  • Strongly Typed Schema: Every API has a defined schema, making it easy to understand the data structure and validate queries before execution.
  • Real-Time Updates: Subscriptions allow clients to receive live updates whenever data changes, useful for dashboards, chats, or notifications.

Example:

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