Queries are the one of the first things we learn about in GraphQL. In this post, we’ll cover what GraphQL queries are and how they work. We’ll also learn how to write and execute GraphQL queries using Apollo Explorer: a powerful GraphQL IDE.
We know what queries look like and we know what to expect in response when we write them. The next question is: how do we execute them?
It’s important to know that since GraphQL queries are just plain strings, we can use a variety of approaches to fetch data. Among the many options, some that come to mind are:
Learn how to use Apollo to Query GraphQL from Node.js. We will use the Apollo client library within a Node.js Express app to provide a middleman to your third-party endpoint, without the need to rewrite your GraphQL queries and mutations.
GraphQL is a query language and a server-side runtime that is used to request data from the server. The first thing that comes to mind when hearing the term “query language” is SQL. Just as SQL is used for querying databases, GraphQL is a bit like SQL but for querying web APIs as it eliminates the need to repeatedly develop or change existing end-points. GraphQL also enables the client/front-end to retrieve exactly the data they have requested and no more. This means that, within a single request of GraphQL, you can traverse from the entry point to the related data (whereas in RESTful API you have to call multiple endpoints to fetch similar results). Build Nodejs and GraphQL server from scratch using Apollo. How to Build Apollo GraphQL Server From Scratch
This tutorial will show you how to build a blog using React for the frontend, Apollo for ... instance on Heroku (eg: https://your-app.herokuapp.com) without the trailing slash ... React for the frontend, and Apollo for requesting the Strapi API with GraphQL. ... Check the article find and findone routes and save.
Learn how to test a component that uses Apollo GraphQL Queries in React Testing. Using the MockedProvider from the @apollo/client/testing library to wrap our component in the test. Providing mocks that exactly match the query you’re trying to mock
In this intro to GraphQL tutorial, Clark Sell gives a crash course on what is GraphQL, why to use GraphQL vs Rest, using it with Apollo, walks through a GraphQL query in Insomnia, and so much more. In this lives stream recording, Clark answers live questions about all things GraphQL with our community.