Python-docs-samples: Get progress percentage for google.longrunning.operations_pb2.Operation

[helloworldkr]

scenario:
I am sending a long speech recognition file for speech recognition using speech_v1p1beta1 .
operation = client.long_running_recognize(config, audio)
operation_name = operation._operation.name

Issue
There is another file where I have to use operation_name (returned by google speech API) to get back the response again.

I tried get_operation method of the "Long-Running Operations Client":

from google.api_core import operations_v1
api = operations_v1.OperationsClient()
name = ...
response = api.get_operation(name)

When I poll response to check if the job has been completed or not using response.done. For the time being when the response job is not done, how do I get the progress percentage?

[nnegrey]

You can access the metadata field of a LRO.
https://cloud.google.com/speech-to-text/docs/reference/rpc/google.longrunning#operation

Though, I don't think there is a guarantee of providing progress other than 0 and 100.
https://cloud.google.com/speech-to-text/docs/reference/rest/v1/LongRunningRecognizeMetadata

Though, this will quickly hit quota, so probably put a delay between the calls.

operation = client.long_running_recognize(config, audio)
while not operation.done():
     if operation.metadata is not None:
         print(operation.metadata)

I didn't see any percentage info though, just:

start_time {
  seconds: 1574186450
  nanos: 65031000
}
last_update_time {
  seconds: 1574186450
  nanos: 271381000
}

[nnegrey]

Yea, the last one provides:

progress_percent: 100
start_time {
  seconds: 1574186758
  nanos: 15456000
}
last_update_time {
  seconds: 1574186781
  nanos: 57658000
}

[helloworldkr]

thanks, @nnegrey , ya the last one provides the progress percentage as 100% but it would have been really useful if there was someway to get the interim percentage

[nnegrey]

Yep, feel free to file a feature request on this page https://cloud.google.com/support/docs/issue-trackers for the API.