= Header Enricher Function This module provides a header enricher function that can be reused and composed in other applications. == Beans for injection You can import the `HeaderEnricherFunctionConfiguration` in a Spring Boot application and then inject the following bean. `headerFilterFunction` You can use `headerFilterFunction` as a qualifier when injecting. Once injected, you can use the `apply` method of the `Function` to invoke it and get the result. == Configuration Options For more information on the various options available, please see link:src/main/java/org/springframework/cloud/fn/header/filter/HeaderFilterFunctionProperties.java[HeaderFilterFunctionProperties.java] == Tests See this link:src/test/java/org/springframework/cloud/fn/header/filter/HeaderFilterFunctionApplicationTests.java[test suite] for examples of how this function is used. == Other usage See this link:../../../applications/processor/header-filter-processor/README.adoc[README] where this function is used to create a Spring Cloud Stream application.