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C++ Client implementation for Cloud Pub/Sub service
(https://developers.google.com/apis-explorer/#p/pubsub/v1beta1/).
"Google Cloud Pub/Sub" API needs to be enabled at
https://console.developers.google.com/project to open the access for a client.
Select the project name, select the "APIs" under "APIs & auth", and turn
on "Google Cloud Pub/Sub" API.
To run the client from Google Compute Engine (GCE), the GCE instance needs to
be created with scope "https://www.googleapis.com/auth/cloud-platform" as below:
gcloud compute instances create instance-name
--image debian-7 --scopes https://www.googleapis.com/auth/cloud-platform
Google TLS cert is required to run the client, which can be downloaded from
Chrome browser.
To run the client from GCE:
make pubsub_client
GRPC_DEFAULT_SSL_ROOTS_FILE_PATH="Google TLS cert" bins/opt/pubsub_client
--project_id="your project id"
A service account credential is required to run the client from other
environments, which can be generated as a JSON key file from
https://console.developers.google.com/project/. To run the client with a service
account credential:
GRPC_DEFAULT_SSL_ROOTS_FILE_PATH="Google TLS cert" bins/opt/pubsub_client
--project_id="your project id"
--service_account_key_file="absolute path to the JSON key file"
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