ABN TechWeek: What is GraphQL? Is it a replacement for the REST API?

ABN Tech Week trains engineers on the most important issues in building highly scalable software systems. The topic for today is: What is GraphQL? Is it a replacement for the REST API?

The diagram below shows the quick comparison between REST and GraphQL.

🔹GraphQL is a query language for APIs developed by Meta. It provides a complete description of the data in the API and gives clients the power to ask for exactly what they need.

🔹GraphQL servers sit in between the client and the backend services.

🔹GraphQL can aggregate multiple REST requests into one query. GraphQL server organizes the resources in a graph.

🔹GraphQL supports queries, mutations (applying data modifications to resources), and subscriptions (receiving notifications on schema modifications).

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