How to I get a bearer token for a Dialogflow v2beta1 API call?
I want to integrate Dialogflow APIs so now I can't even test APIs in postman without bearer token. For testing I have generated API Key for my agent in GCP project but I didn't found any solution for getting bearer token.
POST https://dialogflow.googleapis.com/v2beta1/[PARENT]/intents?key=[YOUR_API_KEY] HTTP/1.1
Authorization: Bearer [YOUR_ACCESS_TOKEN] Accept: application/json Content-Type: application/json
I guess you already have a Service Account with proper permissions to project/product/resource. If no, you can find a guide on how to create it in Creating and managing service accounts.
Regarding Bearer Token you should read about it in Authenticating as a service account.
If you have a Service Account with proper access and key.json you can use Bearer token.
In GCP console you can print default token using command:
### for default SA
$ gcloud auth application-default print-access-token
### for other SA
$ gcloud auth print-access-token SA_NAME@PROJECT_ID.iam.gserviceaccount.com
More details can be found in this docs.
Request for default SA should looks like this:
curl -X POST /v2beta1/{parent=projects/*}/agent:train \
-H "Authorization: Bearer $(gcloud auth application-default print-access-token)"
For specific one time request you should use below example:
curl -X POST /v2beta1/{parent=projects/*}/agent:train \
-H "Authorization: Bearer $(gcloud auth print-access-token <YourSAaccount>)"
SA account might looks like: <SAname>@<projectID>.iam.gserviceaccount.com
Please keep in mind that this SA must be active. You can do it using command to activate SA:
$ gcloud auth activate-service-account SA_NAME@PROJECT_ID.iam.gserviceaccount.com --key-file=/path/to/SAkey/key.json
###or using just key
$ gcloud auth activate-service-account --key-file=/path/to/SAkey/key.json
And command for listing active SA is:
$ gcloud auth list
I chose a random POST from Dialogflow API.
