GraphQL - Query Language for APIs
What is GraphQL?
GraphQL is a query language for APIs and a runtime for executing queries created by Facebook in 2012. It allows clients to precisely specify the data they need from a single endpoint.
Advantages of GraphQL in business projects
Why GraphQL is revolutionizing API development in 2025? Key benefits over REST API based on facts
Disadvantages of GraphQL - honest assessment
When might GraphQL not be the ideal solution? Here are the challenges and limitations of the query language and ways to mitigate them
What is GraphQL used for?
Main GraphQL applications in 2025 - mobile APIs, microservices aggregation, real-time apps with examples from Facebook, GitHub, Shopify
Mobile application APIs
Precise data fetching, transfer reduction, offline-first with cache, different devices
Facebook mobile app, GitHub mobile, Instagram, Shopify mobile
Data aggregation from microservices
Single API for dozens of services, schema federation, data composition, backend-for-frontend
Netflix content API, Airbnb listings, Spotify music catalog, PayPal payment systems
Real-time applications
Live subscriptions, WebSocket connections, instant updates, collaborative features
Slack messaging, Discord voice/chat, GitHub live updates, Trading platforms real-time data
Headless CMS and JAMstack
Content delivery, static site generation, developer experience, flexible frontends
Gatsby websites, Contentful-powered sites, Strapi backends, GraphCMS implementations
FAQ: GraphQL – Frequently Asked Questions
Complete answers about GraphQL - from query language to choosing between GraphQL vs REST, Apollo Client and performance