What is the difference between GraphQL and REST
With REST, different endpoints are created for different data manipulation operations, such as GET, POST, DELETE, PUT, etc. Each of these transactions corresponds to an object or a resource that is explicitly defined. The client sends a request to the server via these endpoints and receives a predefined response. The amount of data served in REST APIs is pre-defined and static, and it is not flexible.
GraphQL, on the other hand, is based on a hierarchical data structure that enables clients to request specific data components from the server, without having to fetch the entirety of the data. This greatly enhances the efficiency of the data transfer. With GraphQL, the client has complete control over the data structure and the fields they need. It also allows the client to request data from multiple resources with minimal round trips, providing a leaner and faster data retrieval process. GraphQL also eliminates the need for multiple endpoints to access the same resource, making it easier for developers to manage their APIs.
In summary, while REST is based on a pre-defined set of HTTP methods, GraphQL uses a single endpoint and a query language to retrieve specific data. GraphQL provides a more efficient, faster, and flexible way to retrieve data, making it an ideal choice for applications with complex data requirements, while REST is still an excellent option for building traditional web applications or services that require a simple request and response mechanism.