FeathersJS vs GraphQL: What are the differences?

# Introduction

Key differences between FeathersJS and GraphQL:

1. **Query Language and Execution**: FeathersJS uses its own query language while GraphQL comes with its query language which allows clients to request only the data they need, reducing over-fetching of data.
   
2. **Real-time and Subscriptions**: FeathersJS natively supports real-time functionality through WebSocket, while GraphQL requires additional protocols like GraphQL subscriptions for real-time updates.
   
3. **Backend Development Workflow**: FeathersJS provides a structured backend development workflow with built-in services and hooks for common functionalities, whereas GraphQL is mainly concerned with fetching and manipulating data at the API level.
   
4. **Learning Curve and Adoption**: FeathersJS follows a more traditional RESTful approach to API development, making it easier for developers familiar with REST, while GraphQL requires understanding of its schema, types, and resolvers, leading to a steeper learning curve for beginners.
   
5. **Data Fetching Efficiency**: GraphQL enables clients to request exactly the needed data through its schema, reducing multiple API calls for related data, whereas FeathersJS may require multiple API calls to fetch related data in a traditional RESTful approach.
   
6. **Client-Side Flexibility**: GraphQL allows clients to define their data requirements in the query, giving them more flexibility and control over the responses they receive, compared to FeathersJS where the server defines the data structure.

In Summary, the key differences between FeathersJS and GraphQL lie in their query languages, real-time capabilities, development workflows, learning curves, data fetching efficiency, and client-side flexibility.