Building a gRPC Service in Golang: Client Streaming RPC (Tutorial)

Welcome to this gRPC video using Golang, part of the series about API Technologies in System Design. In this episode I share with you how to implement a gPRC Service, specifically a Client Streaming RPC using Golang.

== gRPC: Client Streaming RPC?

When building a Client streaming RPCs a client sends a request to the server and receives a stream to send a sequence of messages. The client sends to that returned stream until there are no more messages to send. gRPC guarantees message ordering within an individual RPC call

In practice to do this there are 4 steps:

■ Implement the Service using gRPC via Protocol Buffers
■ Generate the code needed for the actual gRPC Streaming Client RPC (Server and Client)
■ Use the generated code to implement the gRPC Streaming Client RPC (Server)
■ Use the generated code to interact with the gRPC Streaming Client RPC (Client)

== Service kinds in gRPC

There are four kinds of service methods:

■ Unary RPC: https://youtu.be/GgR4JDVgPOc
■ Server Streaming RPC: https://youtu.be/l_74x_qQZB8
■ Client Streaming RPC: https://youtu.be/wKkaCxdfEh8
■ Bidirectional Streaming RPC: https://youtu.be/Z9SHd1K1k5Y

== Relevant links

■ Tutorial: System Design using gRPC with Golang: https://www.youtube.com/playlist?list=PL7yAAGMOat_EX1nv8fgltlm0CnJTH8Nwg
■ Software Architecture and System Design in Go/Golang: https://www.youtube.com/playlist?list=PL7yAAGMOat_GCd12Lrv_evJ3Zhv1dl8B-
■ Learning Golang: Interface Types - Part 1: https://youtu.be/xLf9oUfvvwo
■ Learning Golang: Interface Types - Part 2: https://youtu.be/m14ob5dCLag
■ Example code: https://github.com/MarioCarrion/grpc-microservice-example/tree/ca6e51eabc0857c184467bb23cee8b89d5a2ee7b

== All Go/Golang Playlists

■ Building Microservices in Go/Golang: https://www.youtube.com/playlist?list=PL7yAAGMOat_Fn8sAXIk0WyBfK_sT1pohu
■ Go/Golang Tools and Packages: https://www.youtube.com/playlist?list=PL7yAAGMOat_HEEOvH99agDs_5g51A0Ls3
■ Learning Concurrency Patterns in Go/Golang: https://www.youtube.com/playlist?list=PL7yAAGMOat_Fhj_px_DzNzTsXs-mRwv1t
■ Learning Go/Golang : https://www.youtube.com/playlist?list=PL7yAAGMOat_F7bOImcjx4ZnCtfyNEqzCy
■ Learning Relational Databases in Go/Golang: https://www.youtube.com/playlist?list=PL7yAAGMOat_EgwoQTvNUflrYL_4qzdB7f
■ Testing in Go/Golang: https://www.youtube.com/playlist?list=PL7yAAGMOat_HSeW4zF0uRL9EaHadE4ZZq

== Connect with me!

■ https://twitter.com/MarioCarrion
■ https://www.instagram.com/mario.carrion
■ https://linkedin.com/in/MarioCarrion

00:00 What is a gRPC Client Streaming RPC?
00:21 Implementing a gRPC Client Streaming RPC (Server)
04:30 Implementing a gRPC Client Streaming RPC (Client)
07:50 Conclusion about Building a gRPC Client Streaming RPC

=== Who am I?

Hello??! I'm Mario, a Hands-on Software Architect and Lead Backend Engineer with more than 16 years of professional experience building all kinds of software including on-premise Industrial Automation Systems, Linux Accessibility Desktop and Browser Components as well as Distributed Advertising Microservices.

Every week I will share with you different topics I've learned while working for small startups and large companies including the processes I've followed over the years for successfully delivering complex enterprise systems from start to end.

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