Radoslav is a developer for more than a decade and the organizer of React.Sofia meetup. He believes that frontend and backend are equally important and GraphQL is the best way to connect them.
Getting Started
Defining the Scope
In this tutorial, you will implement the backend for a Hackernews clone that has the following features:
- show a list of links
- authentication system
- users can create new links
- users can vote for links
Install Dependencies
It’s time for you to create your project!
First, you’ll need to have Ruby installed on your system. If that’s not the case, make sure to install it now. This tutorial requires version 2.3.0 or higher.
If you see the following error:
LoadError: Error loading the 'sqlite3' Active Record adapter. Missing a gem it depends on? can't activate sqlite3 (~> 1.3.6), already activated sqlite3-1.4.0. Make sure all dependencies are added to Gemfile.`. Go to and replace the SQLite version:Open Gemfile and change the following line:
And run:
bundle update --source=sqlite
bundle exec rails db:create
This will install and start a new Ruby On Rails project. When you visit http://localhost:3000 in a browser, you should see:
Setup Server
Now, let’s add GraphQL to the server. First, stop the server.
Usually you don’t need to restart Ruby On Rails, but when you are adding new gems(libraries), this is required.
This will install all the necessary dependencies you need to get started with GraphQL and Ruby.
Next Chapter
Queries
Learn how to define the GraphQL schema with graphql-ruby, implement query resolvers in Ruby and use a GraphiQL Playground to test your queries.
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