id roles providers create oidc http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_create_oidc.html
Open ID Connect Providers for Amazon Cognito http://docs.aws.amazon.com/cognito/latest/developerguide/open-id.html
oauth flows resource owner https://docs.axway.com/u/documentation/api_gateway/7.4.1/webhelp_portal_oauth/Content/OAuthGuideTopics/oauth_flows_resource_owner.htm