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Chapter 32. Insert Header Action

Adds an header with a simple language parsed expression to the message in transit.

32.1. Configuration Options
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The following table summarizes the configuration options available for the insert-header-action Kamelet:

Expand
PropertyNameDescriptionTypeDefaultExample

name *

Name

The name of the header to be added. For Knative only, the name of the header requires a CloudEvent (ce-) prefix.

string

 

headername

value *

Value

The value of the header to be added

string

  

* = Fields marked with an asterisk are mandatory.

32.2. Dependencies
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32.2.1. Quarkus dependencies
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<dependencies>
  <dependency>
    <groupId>org.apache.camel.kamelets</groupId>
    <artifactId>camel-kamelets-utils</artifactId>
    <version>4.8.5</version>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-core</artifactId>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-insert-header-action</artifactId>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-kamelet</artifactId>
  </dependency>
</dependencies>

32.3. Usage
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32.3.1. Camel JBang usage
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32.3.1.1. Prerequisites for JBang
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  • Install JBang.

  • You have executed the following command: 

    jbang app install camel@apache/camel

32.3.1.2. Running a route with JBang
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Suppose you have a file named route.yaml with this content: 

- route:
    from:
      uri: "kamelet:timer-source"
      parameters:
        period: 10000
        message: 'test'
      steps:
        - to:
            uri: "kamelet:log-sink"

You can now run it directly through the following command. 

camel run route.yaml

32.3.2. Knative Action
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You must use the insert-header-action Kamelet as an intermediate step in a Knative binding.

insert-header-action-binding.yaml

apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: insert-header-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: timer-source
    properties:
      message: "Hello"
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: insert-header-action
    properties:
      name: "The Name"
      value: "The Value"
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel

32.3.3. Kafka Action
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You must use the insert-header-action Kamelet as an intermediate step in a Kafka binding.

insert-header-action-binding.yaml

apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: insert-header-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: timer-source
    properties:
      message: "Hello"
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: insert-header-action
    properties:
      name: "The Name"
      value: "The Value"
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic

32.4. Kamelets source file
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https://github.com/jboss-fuse/camel-kamelets/blob/camel-kamelets-4.10.3-branch/kamelets/insert-header-action.kamelet.yaml

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