Definition
Resolving or computing a value only when the information needed to produce it is available.
- Also known as
- lazy evaluation, deferred resolution
Some resource values do not exist when the application model is first constructed. Ports, endpoints, generated credentials, or provisioned cloud outputs may become available later.
Value providers and structured expressions defer resolution until the appropriate stage. In run mode that may produce a concrete value; in publish mode the target may receive an expression to resolve during deployment.
Preserving a reference avoids hard-coding a development value into output intended for another environment.
Practical example
Resolve a service's allocated port after endpoint allocation rather than trying to read it while the AppHost is still declaring resources.