Available regions for mod_dialogflow about drachtio-freeswitch-modules HOT 10 CLOSED

In case anyone is interested, here is a gist of a grpc debug log when I try to connect to a dialogflow agent in europe-west1.

I'm creating the credentials like this:

	auto callCreds = grpc::ServiceAccountJWTAccessCredentials(var, INT64_MAX);
	auto creds = grpc::CompositeChannelCredentials(channelCreds, callCreds);
	m_channel = grpc::CreateChannel(endpoint, creds);

where 'var' has the json key for the service account of the gcp project associated with the dialogflow agent.

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this is addressed in PR 67.

Will close this issue once merged

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I think the change would be more than that, that session name would need to be different as well?

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true, the session name would also have to be changed depending on the region
projects/PROJECT_ID/locations/REGION_ID/agent/sessions/SESSION_ID

do you think this is something that will be supported by drachtio in the future?

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Yes, I would like to support this. Just trying to figure out how to make it backwards compatible. Right now, someone can specify a project as either

project-id

or

project-id:environment

it seems like I need to provide a way for someone to additionally specify location-id

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I've made changes to support this but not working yet. Following the instructions here, but getting back an error:

Request had invalid authentication credentials. 
Expected OAuth 2 access token, login cookie or other valid authentication credential.

One thing not clear in the instructions is this statement they make:

 if you need to manually provide a credentials file in your code, you need to take one additional step 
when calling a regionalized endpoint. Set the scope to https://www.googleapis.com/auth/cloud-platform 
when generating your authentication credentials

They then give an example of doing so in Java; however, I can not find any place in the C++ grpc api to accomplish the same thing (i.e., setting the scope). If anyone with knowledge in this area wants to contribute a thought, please do. Otherwise I'm kind of blocked at the moment..

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current changes are on the feature/dialogflow-location-support branch.

I've also updated to grpc v1.39.1 for testing on this branch.

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related:

grpc/grpc#27098

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here is an example shell script showing how to build with the proper versions of grpc and googleapis

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ansible script updated here

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