Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal
4 courses
75 practices
5 hours
Explore GraphQL with Ruby to master schema design, queries, and API integration. Learn to build efficient, type-safe applications by handling real-time data and implementing authentication. Ideal for developers aiming to create scalable solutions.
Go deeper into GraphQL by setting up data mutations, managing complex queries with parameters, and handling server-side subscriptions. Learn to utilize Apollo Server to manage mutations for creating, updating, and deleting resources.
This course dives into advanced GraphQL data patterns, complex queries, and nested data fetching. Learn how to implement best practices and efficient patterns for fetching nested and related data in GraphQL.
This course covers advanced concepts in securing and optimizing GraphQL APIs, including authentication, authorization, rate limiting, data validation, and best practices for error handling and testing. Build robust and secure GraphQL APIs with these advanced techniques.
Hear what our customers have to say about CodeSignal Learn
I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!
Francisco Aguilar Meléndez
Data Scientist
+11
I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.
Faith Yim
Software Engineer
+14
It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.
Alex Bush
Full Stack Engineer
+9
I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.
Abbey Helterbran
Tech consultant
+8
I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.
Jonathan Miller
Senior Machine Learning Engineer
+12
I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!
