API Management: Advanced caching and throttling policies

A number of new policies are available now to extend the caching and throttling capabilities of API Management.

• The cache-lookup-value and cache-store-value enable caching arbitrary pieces of data at arbitrary points during policy execution.
• The quota-by-key and rate-limit-by-key policies allow partitioning quota and rate limits by using custom key values. This gives developers a finer degree of control over throttling to prevent denial-of-service attacks and to enable usage based tiers for end users.

Advanced caching policies can support scenarios such as:

• Fragment caching
• Transparent API versioning
• Tenant Isolation

Advanced throttling policies support scenarios such as:

• User Identity throttling
• Client application driven throttling

For more information, examples, and guidance on how to use these new policies, see:

• Advanced request throttling with Azure API Management
• Custom caching in Azure API Management