When a template developer creates, updates, or deletes a stack that contains a custom resource, the request type is specified in the RequestType field of the provider request object sent by ROS.

Each request type has a particular set of fields that are sent with the request, including a response URL (ResponseURL or InnerResponseURL) provided by the custom resource provider. The provider must respond to the URL with either a SUCCESS or FAILED result within the timeout period (1 to 43,200 seconds). After the timeout period, the request times out. Each result also has a particular set of fields required by ROS.

This section provides information and examples about the request and response fields for each request type.