Learn GraphQL APIs

In this guide, you will learn about GraphQL APIs.

GraphQL is a query language for APIs and a runtime for fetching data from the server. In simple terms, it is a way of fetching only the data that you need from the server. It solves the problem of over-fetching and under-fetching of data.

At the end of this guide, you will know the following:

  • What is GraphQL?
  • What is Schema Definition Language (or SDL)?
  • What are the different GraphQL operations?