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Chapter 43. JSLT Action


Apply a JSLT query or transformation on JSON.

43.1. Configuration Options

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

Expand
PropertyNameDescriptionTypeDefaultExample

template *

Template

The inline template for JSLT Transformation

string

 

file://template.json

* = Fields marked with an asterisk are mandatory.

43.2. Dependencies

43.2.1. Quarkus dependencies

<dependencies>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifact>camel-quarkus-jslt</artifact>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifact>camel-quarkus-kamelet</artifact>
  </dependency>
  <dependency>
    <groupId>org.apache.camel.kamelets</groupId>
    <artifact>camel-kamelets-utils</artifact>
    <version>4.8.5</version>
  </dependency>
</dependencies>
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43.3. Usage

43.3.1. Camel JBang usage

43.3.1.1. Prerequisites for JBang

  • Install JBang.
  • You have executed the following command:

    jbang app install camel@apache/camel
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43.3.1.2. Running a route with JBang

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"
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You can now run it directly through the following command.

camel run route.yaml
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43.3.2. Knative Action

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

jslt-action-binding.yaml

apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: jslt-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: timer-source
    properties:
      message: {"foo" : "bar"}
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: jslt-action
    properties:
      template: "file://template.json"
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
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43.3.3. Kafka Action

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

jslt-action-binding.yaml

apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: jslt-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: timer-source
    properties:
      message: {"foo" : "bar"}
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: jslt-action
    properties:
      template: "file://template.json"
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic
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43.4. Kamelets source file

https://github.com/jboss-fuse/camel-kamelets/blob/camel-kamelets-4.10.3-branch/kamelets/jslt-action.kamelet.yaml

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