Requestdepends

Requestdepends is a concept used in software design to describe dependencies that are required to fulfill a specific request or operation, rather than the overall lifecycle of a component or application. It captures the idea that certain resources, services, or capabilities become necessary only when a particular task is initiated, and may not be needed for all other operations or users.

In practice, requestdependent dependencies are often managed through techniques such as dependency injection, on-demand service discovery, or lazy initialization. They can be represented in metadata or configuration as request-scoped requirements, and are typically resolved at the start of a request or during its processing. This approach supports modularity and can improve resilience by isolating failures to the scope of a single operation.

Requestdepends is distinct from traditional build-time or run-time dependencies. Build-time dependencies concern what is needed to compile or package software, while run-time dependencies refer to resources required to keep a program alive across its entire execution. Request-dependent dependencies, by contrast, are invoked only as part of a specific request, which can lead to more flexible resource management and finer-grained fault isolation.

Challenges associated with requestdepends include ensuring timely resolution, avoiding cycles, and managing performance overhead from on-demand provisioning. Security considerations also arise, as dynamically acquired resources may widen the attack surface if not properly controlled and audited.

See also: dependencies, dependency injection, lazy loading, runtime resource management.