= File Consumer

A consumer that allows you to write incoming messages into files. 
The consumer uses the `FileWritingMessageHandler` from Spring Integration.

== Beans for injection

The `FileConsumerConfiguration` auto-configuration provides the following bean:

`Consumer<Message<?>> fileConsumer`

You can use `fileConsumer` as a qualifier when injecting.

== Configuration Options

All configuration properties are prefixed with `file.consumer`.

For more information on the various options available, please see link:src/main/java/org/springframework/cloud/fn/consumer/file/FileConsumerProperties.java[FileConsumerProperties].

A `ComponentCustomizer<FileWritingMessageHandler>` bean can be added in the target project to provide any custom options for the `FileWritingMessageHandler` configuration used by the `fileConsumer`.

== Tests

See this link:src/test/java/org/springframework/cloud/fn/consumer/file[test suite] for the various ways, this consumer is used.

== Other usage

See this https://github.com/spring-cloud/stream-applications/blob/master/applications/sink/file-sink/README.adoc[README] where this consumer is used to create a Spring Cloud Stream application where it makes a File sink.
