What are the advantages of gRPC over REST?

gRPC has several advantages over REST, especially in the context of high-performance distributed systems:

• Performance and efficiency: gRPC uses the HTTP/2 protocol and binary data format (Protocol Buffers), which provides lower latency and smaller data transfer compared to text-based JSON in REST.

• Streaming support: gRPC natively supports bidirectional streaming, simplifying real-time communication implementation.

• Strong typing: thanks to Protocol Buffers, gRPC provides strict typing and automatic generation of client and server libraries in various languages.

• Schema and contract: gRPC requires defining services and messages in .proto files, which facilitates API maintenance and development.

• Lower overhead: due to its compact format and HTTP/2, gRPC is better suited for microservice architecture and mobile applications with limited resources.

However, REST remains more versatile and easier to integrate with web clients and third-party services where simplicity and compatibility are important.