Adding GraphQL pagination might be tricky because there are quite a lot of different implementations. In this tutorial, we are going to prepare a separate query file to get you familiar with it.
I’d like this to be a reasonably detailed overview of how does the upgrade process in Rails look like in general, but with a strong emphasis on Rails 5.2 > 6 upgrade part (RC1 being the latest release). I’ve already seen a number of great posts describing the list of changes that awaits us in Rails 6, so I will skip this entirely and will focus solely on the upgrade.
The Ruby on Rails framework is powerful in many ways. One of its strong points is that Ruby on Rails is being shipped with ActiveRecord - an Object Relational Mapping system. ActiveRecord comes up with its own DSL, which lets you write Ruby code, which in turn is translated to SQL, allowing you to use database native features, including “locking”.
Today we are going to add specs (again, we will focus only on the happy paths) for GraphQL queries. But there is one thing about the current implementation of the queries that I don’t like. We have everything defined in one file: `app/graphql/types/query_type.rb`
In the last article we added a few GraphQL mutations to our test application. It is time to create automated tests for each of them. But first things first, we need to set up `RSpec` in order to write better specs.
In this article, I would like to focus on adding GraphQL mutations. We will be working on the test application we created previously in this article. It might be helpful for you to know the structure, models, and types we are using so I encourage you to take a look.
GraphQL is an open source query language created by Facebook. It is a powerful tool that you can use for building your API. It is not a silver bullet but it can definitely help you solve some challenges like getting many resources in a single request.
