Dive into gRPC, a high-performance, schema-driven Remote Procedure Call (RPC) framework that’s changing how services communicate. In this video, we’ll walk you through the fundamentals of gRPC, how it differs from traditional HTTP-based APIs, and why it's becoming the go-to choice for efficient, multi-language service communication.
You'll learn how gRPC uses Protocol Buffers (protobuf) to define service contracts, and how you can use Postman to invoke and test gRPC methods, including unary and streaming calls. We’ll also show you how to mock gRPC APIs using proto files and metadata seeds—perfect for repeatable testing workflows.
⏱️ Timestamps:
0:00 Intro to gRPC
0:30 Invoke a unary gRPC method
2:05 Save a collection
2:30 Test a gRPC API
4:30 Invoke a streaming gRPC method
6:20 Use proto file schema to mock a gRPC API
7:48 Use metadata seed to trigger repeatable mock responses
📚 Resources
- Postman Docs: https://learning.postman.com/docs/sending-requests/grpc/grpc-client-overview/
- Blog: https://blog.postman.com/postman-v10-and-grpc-what-you-can-do/
