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API Gateway:Unable to call the backend service

Last Updated:Jul 19, 2019

Check whether the entered backend service address is correct and make sure that the backend service can be accessed normally.
If your backend service is on ECS, check the security group settings to see if it can be accessed externally. Make sure that the security group allows access to the egress address of the API gateway.

  • Get the Egress Address
  1. View the instance to which group belongs from Apigateway Console->Publish APIs->API Groups->group detailsinstance of group

  2. Get the Egress Address from the instanceview the egress address

  • If you are using an intranet IP, make sure your backend services are in the same Region as your APIs.