Sync Emotion Detection returns 404

[ishwara-bhat]

I followed the REST API documentation of sync emotion detection. But it appears to return not-implemented error.

404
{'content': '', 'sampleRate': 48000, 'languageCode': 'en-US', 'encoding': 'audio/webm'}
{'message': 'no route and no API found with those values'}

Somewhere in the documentation, found that client library should be used. But when I used client library, the call did not return and it resulted in timeouts.

Please let me know how to proceed.

Thanks
Ishwar