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Migrating from REST to gRPC: Lessons Learned

Posted by: printserver

If you're still using REST for everything, gRPC might blow your mind. We switched our microservices communication to gRPC and latency dropped by 70%. HTTP/2 multiplexing + protobuf serialization is incredibly efficient. This guide covers the migration process.

Source: https://grpc.io/docs/what...

Score: 25

Category: backend

Added: 2025-12-28 17:30:00

printserver

Gradual migration. Ran HTTP and gRPC in parallel for a month, then switched traffic over. Zero downtime.

Thomas

How did you handle the migration? Big bang or gradual service-by-service?

billman

gRPC is the way. The type safety from protobuf alone prevents so many runtime errors.