Introduction to GraphQL

GraphQL is the new way of developing APIs intended for use with web applications and mobile needing low latency communication to data sources. To clear up a common confusion, when we are talking about GraphQL, we are talking about the query language and communication protocol and not referring to graph databases.

Let's quickly run through some of the concepts and benefits before moving on.

Core concepts

GraphQL is not a database, nor a library. Simply put, it is a runtime combined with a language for querying and accessing the backend data. We use it mostly to implement experience layer APIs where the response can match only the data that is needed by the client. It's really good when you...