Tengo un panel personalizado en el proyecto Ruby on Rails con datos recopilados de Google Analytics. Utilizo la API de Google Analytics Reporting V4 y una cuenta de servicio para autenticar.

Mi código funciona bien si no me hago pasar por el usuarioauthorization.sub = '[email protected]' y si lo hago, me saleunauthorized_client error pero no todas las veces. A veces funciona, y a veces no.

Este es mi código:

scope = [Google::Apis::AnalyticsreportingV4::AUTH_ANALYTICS_READONLY]

view_id = 'xxxxxx'

ENV['GOOGLE_APPLICATION_CREDENTIALS'] = "#{Rails.root}/private/google_analytics_key.json"
authorization = Google::Auth::get_application_default(scope)
authorization.sub = '[email protected]'

analytics = Google::Apis::AnalyticsreportingV4::AnalyticsReportingService.new
analytics.authorization = authorization

...

request = Google::Apis::AnalyticsreportingV4::GetReportsRequest.new(report_requests: report_requests)

@result = analytics.batch_get_reports(request)

Salida del registro del servidor Rails:

Sending HTTP post https://analyticsreporting.googleapis.com/v4/reports:batchGet?
Caught error Authorization failed.  Server message:
{
 "error": "unauthorized_client",
 "error_description": "Client is unauthorized to retrieve access tokens using this method."
}
Error - #<Signet::AuthorizationError: Authorization failed.  Server message:
{
 "error": "unauthorized_client",
 "error_description": "Client is unauthorized to retrieve access tokens using this method."
}>

Completed 500 Internal Server Error in 149ms (ActiveRecord: 0.4ms)



Signet::AuthorizationError (Authorization failed.  Server message:
{
 "error": "unauthorized_client",
 "error_description": "Client is unauthorized to retrieve access tokens using this method."
}):