This app demonstrates how to run gRPC client libraries on App Engine.

• Install composer

• Install dependencies by running:

  composer install

• Install the Google Cloud SDK.

• For the Spanner sample to run, you will need to create a Spanner Instance and a Spanner Database.

For the Spanner sample, open spanner.php in a text editor and change the values of YOUR_INSTANCE_ID and YOUR_DATABASE_ID to the Instance ID and Database ID you created above.

These samples cannot be run locally with the Dev AppServer because gRPC has not been packaged with the Dev AppServer for PHP at this time. You can install gRPC locally and run them using PHP's build-in web server:

# export environemnt variables locally which are set by app engine when deployed
export GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID
export GAE_INSTANCE=local

# Run PHP's built-in web server
php -S localhost:8000

Deploy the samples by doing the following:

gcloud config set project YOUR_PROJECT_ID
gcloud app deploy
gcloud app browse

The last command will open https://{YOUR_PROJECT_ID}.appspot.com/ in your browser. Browse to /monitoring.php to see the Monitoring sample, and /spanner.php to see the Spanner sample.