Grpc-gateway: Please help: google/api/annotations.proto: File not found.

[pzsfeng]

Hi,

I am a grpc newbie, like gprc and am looking forward to auto-generate REST API from my .proto files.

I am probably making some mistake in my setup. Could you please take a look and help? Am I missing a package? Am I invoking the protoc with incorrect params?

My setup details are below.

I am unable to compile the .proto file with the annotation.

Building proto files...
google/api/annotations.proto: File not found.
serverrpc.proto: Import "google/api/annotations.proto" was not found or had errors.

-- My script

export SCRIPTDIR=/libera
export GOPATH=$SCRIPTDIR
echo "Building proto files..."
export PATH=$PATH:$SCRIPTDIR/bin
cd $SCRIPTDIR/bin
protoc -I$SCRIPTDIR/src/server/rpcdef/ \
-I$SCRIPTDIR/src/vendor/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis \
--go_out=$SCRIPTDIR/src/server/rpcdef $SCRIPTDIR/src/server/rpcdef/serverrpc.proto

-- Directory layout

[root@63f0407abe77 libera]# pwd
/libera
[root@63f0407abe77 libera]# ls bin/
gvt protoc protoc-gen-go protoc_bk server.log
[root@63f0407abe77 libera]#
[root@63f0407abe77 libera]# ls src/server/rpcdef/
serverrpc.pb.go serverrpc.proto

The vendor dir below has all the packages required:

[root@63f0407abe77 src]# pwd
/libera/src
[root@63f0407abe77 src]# ls vendor/
cloud.google.com github.com go4.org golang.org google.golang.org gopkg.in manifest

-- serverrpc.proto file

1 syntax = "proto3";
2
3 package serversvc;
4
5 import "google/api/annotations.proto";
6
7 // The greeting service definition.
8 service ServerSvc {
9 // Sends a greeting
10 rpc GetStatus (ServerSvcStatusRequest) returns (ServerSvcStatusResponse) {
11 option (google.api.http) = {
12 post: "/v1/getstatus"
13 body: "*"
14 };
15 }

[root@63f0407abe77 bin]# ./protoc --version
libprotoc 3.1.0

[fiibbb]

@pzsfeng I think you are missing the import part in your protoc command

--go_out=Mgoogle/api/annotations.proto=github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api,plugins=grpc:.

I believe this ^ maps github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis to google/api/annotations.proto

This is from the README

[pzsfeng]

@fiibbb Thanks for taking a look.

I think you are missing the import part in your protoc command

I didn't quite understand it. Could you please mention how to invoke it? Thanks.

[achew22]

Just doing a little bit of tidying. I hope that your question was answered in a way that let your project continue. If you have any more questions feel free to reopen this issue.

[cappuccino5]

楼主这个解决了吗？我是新手，也遇到这样的问题

[johanbrandhorst]

Hi @cappucino5. Please reach out for help with this type of matter on chat services such as Gophers slack channel. This is not the best medium for this kind of debugging.