Get google's access token from google cloud

[Manh Tran]

Hi,

I'm writing a gRPC client connect to google cloud speech. I think it needs an access token to connect to google cloud. Please tell me how to get an access token OAuth2 on gRPC C++.

Thanks.

[Yang Gao]

Try creating the channel with GoogleDefaultCredentials(). See http://www.grpc.io/docs/guides/auth.html#using-google-token-based-authentication for more details.

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[Manh Tran]

Dear Yang,

I've created the channel with GoogleDefaultCredentials() as the following code and streaming audio to google cloud speech. But google cloud not response.

..

using google::cloud::speech::v1beta1::Speech;

class GoogleClient {

 public:

GoogleClient(std::shared_ptr<Channel> channel)

      : stub_(Speech::NewStub(channel)) {}

 private:

  std::unique_ptr<Speech::Stub> stub_;

};

int main(int argc, char** argv) {

auto channel_creds = grpc::GoogleDefaultCredentials();

auto channel = grpc::CreateChannel("speech.googleapis.com:443", channel_creds);

GoogleClient ggclient(channel);

..

}

Please check it for me.

Thanks.

On Thursday, August 25, 2016 at 1:44:53 PM UTC+7, Yang Gao wrote:

Try creating the channel with GoogleDefaultCredentials(). See http://www.grpc.io/docs/guides/auth.html#using-google-token-based-authentication for more details.

On Wed, Aug 24, 2016 at 7:03 PM, Manh Tran <manht...@gmail.com> wrote:

Hi,

I'm writing a gRPC client connect to google cloud speech. I think it needs an access token to connect to google cloud. Please tell me how to get an access token OAuth2 on gRPC C++.

Thanks.

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[Евгений Абрамов]

Hello,
Try remove port number from url "speech.googleapis.com:443" =>"speech.googleapis.com".