Custom Metric in Stackdriver with PHP Appengine

Question

I am developing a php appengine application. In some parts of the code I have some metrics i would like to save to be showed and analyzed in stackdriver monitoring.
To be clear i set an example:

script.php is performing data manipulation, 10 times per minutes. Each time the script run it produce some statistics as, number of record manipulated, time used to manipulate the records, number of errors.

How can i "send" this data to stackdriver (using php) to monitor how the script is performing using my metrics?

Thanx

Answer 1

To add custom metric to Stackdriver in php appengine, use the REST APIS: https://cloud.google.com/monitoring/api/ref_v3/rest/