insert field action Insert Field Action

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

Adds a custom field with a simple language parsed value to the message in transit.

The extract field action expected an application/json content type.

If for example you have an array like '{ "foo":"John", "bar":30 }' and your action has been configured with field as 'element' and value as 'hello', you’ll get '{ "foo":"John", "bar":30, "element":"hello" }'

Configuration Options

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

Property Name Description Type Default Example

field

Field

Required The name of the field to be added.

string

value

Value

Required The value of the field.

string

Dependencies

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

  • github:apache.camel-kamelets:camel-kamelets-utils:main-SNAPSHOT

  • camel:core

  • camel:jackson

  • camel:kamelet

Usage

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

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: Hello
  steps:
    - 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

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the insert-field-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command:

    kubectl apply -f insert-field-action-binding.yaml

Procedure for using the Kamel CLI

Configure and run the action by using the following command:

kamel bind insert-field-action -p "step-0.field=The Field" -p "step-0.value=The Value" channel:mychannel

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

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: Hello
  steps:
    - 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

Prerequisites

  • You’ve installed Strimzi.

  • You’ve created a topic named my-topic in the current namespace.

  • You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the insert-field-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command:

    kubectl apply -f insert-field-action-binding.yaml

Procedure for using the Kamel CLI

Configure and run the action by using the following command:

kamel bind insert-field-action -p "step-0.field=The Field" -p "step-0.value=The Value" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic

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