It also defines the query endpoints to which a client can send a request. The GraphQL schema - which describes the type and hierarchy of a database. To build a server with GraphQL we need the following: We’ll be using GraphQL along with Express and NodeJS to create a simple server that returns data for an image or set of images depending on the query. The type of data is defined at the server-side while describing data and validated inside a GraphQL type system. GraphQL is a strongly typed query language.It’s shaped just like the data that it returns making it intuitive to work with. Queries that are composed of a hierarchical set of fields.A declarative format with the query responses decided by the server which helps give better results.The ability to describe data offered by APIs on the server-side, as well as to send queries to the GraphQL server from the client-side.Other advantages of using GraphQL include: GraphQL is a query language used by developers to create flexible, and fast APIs which ensure that the clients receive only the data they requested. ![]() Let’s take a quick overview of the pros of using GraphQL before we begin to build our demo. In this article, we’ll set up our own GraphQL server with Node.JS(ES6) and write a few queries to gain insight into how GraphQL works. While working with REST APIs may be the standard, more and more teams opt to setup their API’s using GraphQL. ![]() Being able to work with APIs and write queries is crucial to any developer’s skill set.
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