Global Filters & GatewayFilterFactory
Understand the concept of global filters and how to use built-in GatewayFilterFactories for common transformations.
What are Gateway Filters?
In Spring Cloud Gateway, filters are like interceptors that allow you to modify incoming HTTP requests or outgoing HTTP responses.
They provide a powerful way to implement cross-cutting concerns for your API traffic, such as security, logging, or data transformation.
Pre- and Post-Filters
Spring Cloud Gateway supports two main types of filter execution:
- Pre-filters: Executed before the request is sent to the downstream service. Great for authentication, logging, or modifying request headers.
- Post-filters: Executed after the response is received from the downstream service but before it's sent back to the client. Useful for modifying responses, caching, or error handling.
All lessons in this course
- Global Filters & GatewayFilterFactory
- Custom Request/Response Filters
- Pre/Post Processing with Filters
- Built-in GatewayFilters You Should Know