13 Introduction to gRPC and Protocol Buffers

gRPC is a high performance framework for client server applications. It is designed to be cross platform and is an awesome alternative to RESTful services.

In this episode we take a quick look at gRPC and Protocol Buffers, and how you can use them to build a simple API. This is the first video in a series of content where we dig into gRPC services.

Source Code:

Links:

[overstandnigeria]

Your voice and tone seems to make the lectures stick . I'm subscribing for that alone. Good work.

[evansowamoyo]

13th June 2022, the gRPC has changed a bit. The generated code for services and messages are now in separate folders ending with _grpc.pb.go and .pb.go respectively.
Also,
1. At the top of the proto file you need:
`option go_package="/currency";`
2. The command for generation can now be something like this:
`protoc -I protos/ --go_out=. --go-grpc_out=. protos/currency.proto`

[tylerlofgren]

First video I've seen from you. Excellen and very helpful.

[MarcelTndl]

Excellent work man ! . Regards from Argentina .

[Fomer]

Amazing content! So easy to comprehend. Thank you so much!

[nopestack]

Hey Nick, if you put a full IP address and a port on Go's listeners, you avoid making the firewall jump everytime you run a server

[JustMe]

Great job. You always are a creative programmer
Can you talk about Avro vs gRPC
Can you show us how to use Istio with gRPC in building microservices

[MediaEnraged]

this is an amazing video thank you so much

[yeezyyxy]

Has there been some large change in the golang grpc package since the time this video was made? I used the command "protoc --go-grpc_out=. path/to/file.proto" to generate my currency_grpc.pb.go file and it looks drastically different than yours.

[ajinkyadeshpande]

Thanks for this, how can I use grpcurl in python? want to build some utility tool for testing

[abdorootuae]

i am using bloomrpc to test the grpc it's gui

[nixkim]

This is wonderful! Thank you, I learned a lot :)

[jonathoncronin]

Great video, I was able to utilize this for my first GRPC concept build. Really I'm just a hobbyist but I appreciated the method of your approach. Too often people don't take the time to explain the fundamentals of things first (explanation on proto was perfect). If I had time to read the entire documentation I wouldn't be looking for a youtube video to jumpstart me.

[ethashamuddinmohammed]

Are you also planning to discuss about deployment of docker containers(go microservices)?

[evans]

okei, it breaks my heart when intellisense fails
in your .proto file, when generating go modules, you can write `option go_package = "<dir/package_name>";`
some where else in your project you can call stuff from that package. <package_name>.MyStruct.

[obeydadjeffal]

awesome video, one little detail: for me when i followed the steps i had `Base`, `Destination` and `Rate` in json (PascalCase instead of lowercase)
also, i don't have the `[json_name = part when i describe a message.

tested it today

[abhikbanerjee]

The tutorials are great, the voice is even better... Kind of like one of those story narrator voices. Keep up the good work mate!

[Terszel]

Another change is that proto grpc now requires generated servers to have forward compatibility. To fix the error, add protos.Unimplemented*Server to your struct (no field name needed) and also add in your constructor. Or, you can opt out of forward compatibility by adding protos.Unsafe*Server instead, or change your protoc to have this command:

[mrmaker]

I’m really happy I found a comprehensive intro to grpc. Thank you!

[kudoamv]

hmmm....

Make a tutorial in which two microservices talk to each other using grpc and protocol buffers. Use both client and server streaming at the same time. It should be fun.