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- explicitly mention the needed reply template.
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Gary Russell
2019-12-06 14:44:02 -05:00
parent fde3b20a04
commit 9bfc8803ea
1 changed files with 4 additions and 0 deletions
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src/reference/asciidoc/kafka.adoc
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@@ -1595,6 +1595,10 @@ public class MultiListenerSendTo {
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IMPORTANT: In order to support `@SendTo`, the listener container factory must be provided with a `KafkaTemplate` (in its `replyTemplate` property), which is used to send the reply.
This should be a `KafkaTemplate` and not a `ReplyingKafkaTemplate` which is used on the client-side for request/reply processing.
When using Spring Boot, boot will auto-configure the template into the factory; when configuring your own factory, it must be set as shown in the examples below.
Starting with version 2.2, you can add a `ReplyHeadersConfigurer` to the listener container factory.
This is consulted to determine which headers you want to set in the reply message.
The following example shows how to add a `ReplyHeadersConfigurer`: