Web client communicate with gRPC server

Question

I have a c++ service which I intend to expose using a gRPC server. What is the way a web browser would communicate with the gRPC server? I am using angularJS for the front end.

I look at grpc documentation. But can't find information on browser support.

Can you elaborate on the question ? I thought the docs were pretty straightforward. Maybe you have not used rpc before ? — Romain Hippeau, Jun 03 '16 at 20:13
@RomainHippeau I updated the question. Yes, I haven't used gRPC before. I updated the question. In short, how can communicate to a gRPC server from web browser? — ravindrab, Jun 03 '16 at 20:49
http://stackoverflow.com/questions/35065875/how-to-bring-a-grpc-defined-api-to-the-web-browser http://www.grpc.io/faq/ it looks like you are going to need a translation service. If not get supports object serialization and rpc. It is a steep learning curve. — Romain Hippeau, Jun 04 '16 at 13:41
Possible duplicate of [How to bring a gRPC defined API to the web browser](https://stackoverflow.com/questions/35065875/how-to-bring-a-grpc-defined-api-to-the-web-browser) — Gabriel Grant, Jul 25 '17 at 23:55

score 6 · Answer 1 · answered Jun 05 '16 at 15:11

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i used grpc gateway. Many large projects use it too. It translated GRPC RPC into Rest / JSON.

https://github.com/gengo/grpc-gateway

answered Jun 05 '16 at 15:11

I use grpc-java for server and I know grpc-gateway is created in go. so can I use it in my project? how? – Seyed Ali Roshan Aug 06 '18 at 08:34

score 4 · Answer 2 · edited May 23 '17 at 12:08

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How to bring a gRPC defined API to the web browser http://www.grpc.io/faq/ it looks like you are going to need a translation service. If not gwt supports object serialization and rpc. It is a steep learning curve.

edited May 23 '17 at 12:08

Community

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answered Jun 04 '16 at 13:45

Romain Hippeau

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score 2 · Answer 3 · answered Oct 05 '17 at 20:04

With some more recently released technology (and also one of the answers on the question that is a possible duplicate): I've used the grpcwebproxy (on top of a Python grpc server) and the corresponding ts-protoc-gen plugin from Improbable. It "talks" gRPC directly between client / server (following the preliminary web-spec), without using REST or JSON translation, and allows you to use your proto files client-side as well as server-side:

https://improbable.io/games/blog/grpc-web-moving-past-restjson-towards-type-safe-web-apis

https://github.com/improbable-eng/grpc-web

score 1 · Answer 4 · answered Mar 16 '20 at 05:47

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Now gRPC web is available to use.

https://github.com/grpc/grpc-web

answered Mar 16 '20 at 05:47

Abhishek Singh

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Web client communicate with gRPC server

4 Answers4