Apollo server

Apollo Server is an open-source, spec-compliant GraphQL server that's compatible with any GraphQL client, including Apollo Client. It's the best way to build a production-ready, self-documenting GraphQL API that can use data from any source.

Apollo Server is a library that helps you connect a GraphQL schema to an HTTP server in Node. js. It's possible to use Apollo Server with all popular HTTP servers like Express, Connect, Hapi, Koa, Restify, and Lambda.

Apollo Client is a comprehensive state management library for JavaScript that enables you to manage both local and remote data with GraphQL. Use it to fetch, cache, and modify application data, all while automatically updating your UI.

But GraphQL is just a query language. And in order to use it easily, we need to use a platform that will do all the heavy lifting for us. One such platform is provided by Apollo. The Apollo platform is an implementation of GraphQL that can transfer data between the cloud (server) to the UI of your app .

A GraphQL server is a server-side implementation of the GraphQL spec. In other words, a GraphQL server exposes your data as a GraphQL API that your client applications can query for data.

Apollo is a great fit with microservice architectures and modern UI frameworks like React. It serves as an abstraction layer that decouples services and apps so that each can be developed independently of the other, in any language and on any platform.