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Learning Go by examples: part 6 - Create a gRPC app in Go

Aurélie Vache on August 18, 2021

In previous articles we created an HTTP REST API server, a CLI, a Bot for Discord and even a game for Nintendo Game Boy Advance. Today let's create...

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Yao • Mar 14 '23

Thanks for the wonderful tutorial! One update here: the gRPC tool for golang has updated its command syntax so as the output form. One big diff here is that instead of single pb file, there will be 2 separate files: one for populating, serializing, and retrieving proto message types, and one for generated client and server code.

see grpc.io/docs/languages/go/quicksta...

Aurélie Vache • Mar 14 '23

Thanks for your comment! I will update it, thx!

Matthew Cale • Mar 15 '22

Command:

go get -u github.com/spf13/cobra/cobra

Fails for me with error:

go get: module github.com/spf13/cobra@upgrade found (v1.4.0), but does not contain package github.com/spf13/cobra/cobra

Instead I used:

go get -u github.com/spf13/cobra@latest

Aurélie Vache • Mar 21 '22

Thanks Matthew, it seams that the code organisation has changed on cobra side, I'm fixing it in the article :)

Matthew Cale • Mar 23 '22

Yep it is a miss on Cobra’s side. Their GH does refer to the right command (now), but the cobra.dev site still has the wrong command. Thanks for contributing this piece and for introducing me to Taskfile.

Aurélie Vache • Mar 23 '22

Yes, they changed the way to "go get" the dependencies, good to know :)

Johan PIQUET • Feb 19

Thank you Aurélie! ... and I love your drawing :-)

Aurélie Vache • Feb 19

Thanks Johan :-)

Comment deleted

Burney Hoel • Aug 18 '21

Agreed, keep them coming!

Aurélie Vache • Aug 18 '21

Thanks!

Have you some idea of others episodes?

Burney Hoel • Aug 19 '21

@aurelievache What I love about your series is that the projects are fun. You are not just exploring the language but what can be done with it. I think the topics below are neat and could fit your series.

• Grpc-web, and or the improbable implementation (improbable-eng/grpc-web)
• Go and web assembly
• Fuzz testing is new and could be neat.
• Not out yet but in go 1.18, generics

Aurélie Vache • Aug 19 '21

Thanks for your ideas! 🙂
I will explore other kind of apps, web assembly is on my list too ^^

Aurélie Vache • Aug 18 '21

Thanks Julien! 😘

Nikola Mandivic • Jun 1 '22

One of those developers that explain things unnecessarily complicated. I spent a little over an hour here and learned nothing. Maybe this tutorial is meant for a minority group of "geeks" that like fancy libraries that nobody heard of. Who cares about "cobra".

Abdel SGHIOUAR • Jun 18 '22

Literally every developer who writes CLI's in Go uses Cobra. The project has 27k stars in Github (github.com/spf13/cobra) and is used by Docker, helm, skaffold among other popular tools.

Sorry if you job is to write Frontend apps :)

Nikola Mandivic • Jun 21 '22

There are many libraries out there that have lots of stars and supported by Docker but not mainstream at all. I don't think I was talking about cobra specifically anyway. Not sure why you were hung up on that. Anyways, pretty confusing tutorial. It's like watching someone going through backendless rather than firestore.