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Chapter 23. Insert Field Action

Adds a custom field with a constant value to the message in transit

23.1. Configuration Options

The following table summarizes the configuration options available for the insert-field-action Kamelet:

Property	Name	Description	Type	Default	Example
field *	Field	The name of the field to be added	string
value *	Value	The value of the field	string

Note

Fields marked with an asterisk (*) are mandatory.

23.2. Dependencies

At runtime, the insert-field-action Kamelet relies upon the presence of the following dependencies:

github:openshift-integration.kamelet-catalog:camel-kamelets-utils:kamelet-catalog-1.6-SNAPSHOT
camel:core
camel:jackson
camel:kamelet

23.3. Usage

This section describes how you can use the insert-field-action.

23.3.1. Knative Action

You can use the insert-field-action Kamelet as an intermediate step in a Knative binding.

insert-field-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: insert-field-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: timer-source
    properties:
      message: '{"foo":"John"}'
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: json-deserialize-action
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: insert-field-action
    properties:
      field: "The Field"
      value: "The Value"
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel

23.3.1.1. Prerequisite

Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.

23.3.1.2. Procedure for using the cluster CLI

Save the insert-field-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.
Run the action by using the following command:
```
oc apply -f insert-field-action-binding.yaml
```

23.3.1.3. Procedure for using the Kamel CLI

Configure and run the action by using the following command:

kamel bind --name insert-field-action-binding timer-source?message='{"foo":"John"}' --step json-deserialize-action --step insert-field-action -p step-1.field='The Field' -p step-1.value='The Value' channel:mychannel

This command creates the KameletBinding in the current namespace on the cluster.

23.3.2. Kafka Action

You can use the insert-field-action Kamelet as an intermediate step in a Kafka binding.

insert-field-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: insert-field-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: timer-source
    properties:
      message: '{"foo":"John"}'
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: json-deserialize-action
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: insert-field-action
    properties:
      field: "The Field"
      value: "The Value"
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic

23.3.2.1. Prerequisites

Ensure that you’ve installed the AMQ Streams operator in your OpenShift cluster and created a topic named my-topic in the current namespace. Make also sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.

23.3.2.2. Procedure for using the cluster CLI

Save the insert-field-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.
Run the action by using the following command:
```
oc apply -f insert-field-action-binding.yaml
```

23.3.2.3. Procedure for using the Kamel CLI