gRPC Gateway vs gRPC-Web

Developers should use gRPC Gateway when they need to provide both gRPC and REST APIs for the same service, such as in microservices architectures where internal services communicate via gRPC for efficiency, but external clients require RESTful interfaces meets developers should learn grpc-web when building modern web applications that require efficient, type-safe communication with backend microservices, especially in microservices architectures where grpc is already used. Here's our take.

gRPC Gateway

Nice Pick

Developers should use gRPC Gateway when they need to provide both gRPC and REST APIs for the same service, such as in microservices architectures where internal services communicate via gRPC for efficiency, but external clients require RESTful interfaces

Pros

• It's particularly useful for building polyglot systems, supporting web and mobile applications that rely on HTTP/JSON, while maintaining the performance benefits of gRPC internally
• Related to: grpc, protocol-buffers

Cons

• Specific tradeoffs depend on your use case

gRPC-Web

Developers should learn gRPC-Web when building modern web applications that require efficient, type-safe communication with backend microservices, especially in microservices architectures where gRPC is already used

Pros

• It's ideal for scenarios like real-time dashboards, chat applications, or data-intensive web apps where low-latency and structured data exchange are critical, as it reduces payload size and improves performance compared to REST/JSON APIs
• Related to: grpc, protocol-buffers

Cons

• Specific tradeoffs depend on your use case

The Verdict

These tools serve different purposes. gRPC Gateway is a tool while gRPC-Web is a library. We picked gRPC Gateway based on overall popularity, but your choice depends on what you're building.

The Bottom Line

gRPC Gateway wins

Based on overall popularity. gRPC Gateway is more widely used, but gRPC-Web excels in its own space.