Summarized here:
https://pretired.dazwilkin.com/posts/200320/

Hey all, I figure this may be a decent spot to ask this question, but feel free to redirect it if necessary!

Does Cloud Run support grpc-web clients? I'm not sure about the status of the grpc-web project in general, but I would love to see or contribute an example in this repo if the support is there or is planned to be there.

Thanks!

I'm extremely new to Golang, I don't know if this has room for these notes. Feel free to close the issue if it's not appropriate.

When containerizing the example code and you are using a private repository.

Since I'm not an expert in Golang I had a hard time understanding why running on host was trying to pull the code from bitbucket.
In order to fix that, I cloned the repo inside $GOPATH/src/[bitbucket.org|github.com|gitlab.com] like https://golang.org/doc/gopath_code.html

If you are using a private repo to test out this code, you will need to do a couple of changes.
Set the env for GOPRIVATE

ENV GOPRIVATE="domain.tld/your-name/your-project-name"

When adding the files inside the container, place them inside /go/src/ following the same path you used because the go.mod in this repo is pointing to a public repo, but you are using a private repo so you will try to fetch from the repo instead of pulling from the fs

I've also submitted a PR for a minor warning that popups when compiling the proto following this guide, that is #28

I'm using go 1.14 and this is my go env

{
        "AR": "ar",
        "CC": "gcc",
        "CGO_CFLAGS": "-g -O2",
        "CGO_CPPFLAGS": "",
        "CGO_CXXFLAGS": "-g -O2",
        "CGO_ENABLED": "1",
        "CGO_FFLAGS": "-g -O2",
        "CGO_LDFLAGS": "-g -O2",
        "CXX": "g++",
        "GCCGO": "gccgo",
        "GO111MODULE": "on",
        "GOARCH": "amd64",
        "GOBIN": "",
        "GOCACHE": "/home/jvazquez/.cache/go-build",
        "GOENV": "/home/jvazquez/.config/go/env",
        "GOEXE": "",
        "GOFLAGS": "",
        "GOGCCFLAGS": "-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build154605772=/tmp/go-build -gno-record-gcc-switches",
        "GOHOSTARCH": "amd64",
        "GOHOSTOS": "linux",
        "GOINSECURE": "",
        "GOMOD": "/home/jvazquez/go/src/bitbucket.org/jvazquezAR85/gcr-grpc/go.mod",
        "GONOPROXY": "bitbucket.org/jvazquezAR85/gcr-grpc,github.com/jvazquez/*",
        "GONOSUMDB": "bitbucket.org/jvazquezAR85/gcr-grpc,github.com/jvazquez/*",
        "GOOS": "linux",
        "GOPATH": "/home/jvazquez/go",
        "GOPRIVATE": "bitbucket.org/jvazquezAR85/gcr-grpc,github.com/jvazquez/*",
        "GOPROXY": "https://proxy.golang.org,direct",
        "GOROOT": "/usr/lib/go-1.14",
        "GOSUMDB": "sum.golang.org",
        "GOTMPDIR": "",
        "GOTOOLDIR": "/usr/lib/go-1.14/pkg/tool/linux_amd64",
        "PKG_CONFIG": "pkg-config"
}

Hi, and thanks for the multiple, concise examples!

As the title says, using the Node example locally works fine. However, I am having issues using grpcurl towards the Cloud Run URL. When doing so I get the error:

Failed to process proto source files.: could not parse given files: %!v(PANIC=Error method: runtime error: invalid memory address or nil pointer dereference)

I'm not unused to Docker but am not an expert either. Totally new to gRPC. My highly naive suspicions relate to:
a) Do proto files exist on the image? (Which I absolutely believe they do, since the local one works)
b) Some kind of error in the proto files? Do they need to be (re)built?

Thanks for any assistance.

I tried all possible ways.
why this did not work?
the calls still not falling unauthenticated
even the docs explain to uses this way
Authenticating users

 type: google.api.Service
 config_version: 3
 name: "*.apigateway.PROJECT_ID.cloud.goog"
 title: User Service API
 apis:
  - name: app.GC_PROJECT_ID.User
 authentication:
  providers:
    - id: firebase
      jwks_uri: https://www.googleapis.com/service_accounts/v1/metadata/x509/[email protected]
      issuer: https://securetoken.google.com/FIREBASE_PROJECT_ID
      audiences: FIREBASE_PROJECT_ID
  rules:
    - selector: "*"
      requirements:
        - provider_id: firebase

 usage:
   rules:
  - selector: app.PROJECT_ID.User.CreateUser
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.LinkUser
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.AddProvider
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.RemoveProvider
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.GetUser
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.UpdateDisplayName
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.UpdateUsername
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.UpdatePhotoUrl
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.UpdateEmail
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.AddFriend
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.RemoveFriend
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.BlockFriend
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.GetFriends
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.DeleteUser
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.GetEmailByUsername
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.SearchUser
    allow_unregistered_calls: false
  - selector: app.PROJECT_ID.User.CheckUsernameExist
    allow_unregistered_calls: false

 backend:
  rules:
    - selector: "*"
      jwt_audience: FIREBASE_PROJECT_ID
      address: grpcs://user-service-HASH-uc.a.run.app

the gcloud commands

 python3 -m grpc_tools.protoc  --include_imports --include_source_info --proto_path=../proto --descriptor_set_out=../proto/api_descriptor.pb --python_out=../generated_pb2 --grpc_python_out=../generated_pb2 user.proto
 gcloud api-gateway gateways delete grpc-user --location=us-central1
 gcloud api-gateway api-configs delete grpc-user-config  --api=grpc-user
 gcloud api-gateway api-configs create grpc-user-config  --api=grpc-user     --project=PROJECT_ID    --grpc-files=../proto/api_descriptor.pb,../api_config/user_api_config.yaml
 gcloud api-gateway gateways create grpc-user  --api=grpc-user  --api-config=grpc-user-config     --location=us-central1    --project=PROJECT_ID

had to change my grpcurl request paramter order to this to make it work:

grpcurl \
	-d '{"first_operand": 2.0, "second_operand": 3.0, "operation": "ADD"}' \
	-proto calculator.proto \
	--plaintext \
    localhost:50051 \
    Calculator.Calculate

otherwise I get

Too many arguments.
Try 'grpcurl -help' for more details.

Dependent ticket: golang/go#16736

Java example is highly desired

I've added a Rust sample to my fork.

I'm a Rust noob so there's likely plenty of feedback but:

• It works
• It's straightforward
• Google should show more Rust <3 :-)

I'm always confused by GitHub when PR'ing from different branches because, even though I started each sample from its own branch, the PRs show all my commits :-(

I want to run the gRPC application that I will develop with Dart on Cloud Run. Is it possible to make an example for this?
Dart officially announced its support for gRPC. Moreover, I think it will be very useful to use it together for a language developed by Google and Cloud Run.