How to get started with GraphQL
Briefly

Developed by Facebook, GraphQL offers a formal schema and a type system, ensuring consistency in queries and returned data, serving as an alternative to REST APIs.
GraphQL is available in libraries for various languages like C#, Go, Java, JavaScript, Swift, Python, making it versatile for different web application APIs.
GraphQL doesn't impose restrictions on server or client, being database-agnostic. It's recommended to choose familiar language, runtime, and data layer for GraphQL implementation.
GraphQL constructs queries from strongly typed fields in hierarchical arrangements, where designing the query schema requires careful consideration for mapping to data sources.
Read at InfoWorld
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