developer-roadmap/src/roadmaps/system-design/content/118-cloud-design-patterns/103-reliability-patterns/103-security/valet-key.md

# Valet Key

Use a token that provides clients with restricted direct access to a specific resource, in order to offload data transfer from the application. This is particularly useful in applications that use cloud-hosted storage systems or queues, and can minimize cost and maximize scalability and performance.

Learn more from the following links:

- [Valet Key pattern](https://learn.microsoft.com/en-us/azure/architecture/patterns/valet-key)