GDF Plugin 1.20 and authentication to Dialogflow CX

Maciej Krzysztoń

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Dec 7, 2021, 1:22:34 PM12/7/21

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Hello,

I have updated my unimrcp version to be able to use Dialogflow CX, created new credentials and put them in data in place of old config. Now when I try to call the agent this message appear in unimrcp log:

gRPC Status: Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.

I am specifing my agent, session, location and project in vxml grammar

'builtin:speech/transcribe?projectId=some-project-name";dialogid=test-session-1;locationId=europe-west1;agentId=869fa107-c209-4137-97c7-629b99e49e27;language=de-DE'

and in umsgdf.xml

<streaming-recognition
single-utterance="true"
interim-results="true"
start-of-input="service-originated"
language="de-DE"
max-alternatives="1"
project-id="some-project-name"
skip-unsupported-grammars="true"
skip-empty-results="true"
transcription-grammar="transcribe"
generate-output-audio="false"
stream-creation-timeout="0"
grpc-log-redirection="false"
grpc-log-verbosity="DEBUG"
grpc-log-trace="all"
inter-result-timeout="3000"
api="v3beta1"
/>

When I am using the same data from my java application, authorization and queries are working. However, when I used my old code for authorization (from api v2) the error message was the same as now from unimrcp.

Am I missing something? Is it possible that I get these errors because my unimrcp was updated from the older version?

Kind regards

Maciej Krzyszton

Maciej Krzysztoń

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Dec 8, 2021, 8:53:49 AM12/8/21

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Okay, i fixed it with reinstalling the unimrcpserver, gdf-plugin and following umsgdf.xml streaming-recognition

<streaming-recognition

single-utterance="true"

interim-results="true"
start-of-input="service-originated"
language="de-DE"
max-alternatives="1"

project-id="some-project-id"

skip-unsupported-grammars="true"
skip-empty-results="true"
transcription-grammar="transcribe"
generate-output-audio="false"

word-info="false"
model=""
model-variant=""
environment=""
stream-creation-timeout="0"
inter-result-timeout="0"
grpc-log-redirection="false"
grpc-log-verbosity=""
grpc-log-trace=""
max-recv-message-length="-1"
max-send-message-length="-1"
api="v3beta1"
location="europe-west1"
service-uri="europe-west1-dialogflow.googleapis.com:443"
/>

and grammar

builtin:speech/transcribe?agentid=some-agent-id;language=de-DE'

Arsen Chaloyan

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Dec 20, 2021, 7:28:58 PM12/20/21

to UniMRCP

Hi Maciej,

You do not have to specify a service-uri explicitly since the service-uri is composed implicitly based on the specified location.

I think your original problem was in the token name used to specify a location as an input parameter to the built-in grammar, which is "location" but not "locationId". So, the following should work as intended, having the default settings in umsgdf.xml.

builtin:speech/transcribe?projectId=some-project-name";dialogid=test-session-1;location=europe-west1;agentId=869fa107-c209-4137-97c7-629b99e49e27;language=de-DE';api=v3beta1

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