Chapter 22. HTTP Sink

Forwards an event to a HTTP endpoint

22.1. Configuration Options

The following table summarizes the configuration options available for the http-sink Kamelet:

PropertyNameDescriptionTypeDefaultExample

url *

URL

The URL to send data to

string

 

"https://my-service/path"

method

Method

The HTTP method to use

string

"POST"

 
Note

Fields marked with an asterisk (*) are mandatory.

22.2. Dependencies

At runtime, the http-sink Kamelet relies upon the presence of the following dependencies:

  • camel:http
  • camel:kamelet
  • camel:core

22.3. Usage

This section describes how you can use the http-sink.

22.3.1. Knative Sink

You can use the http-sink Kamelet as a Knative sink by binding it to a Knative object.

http-sink-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: http-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: http-sink
    properties:
      url: "https://my-service/path"

22.3.1.1. Prerequisite

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

22.3.1.2. Procedure for using the cluster CLI

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

  2. Run the sink by using the following command: 

    oc apply -f http-sink-binding.yaml

22.3.1.3. Procedure for using the Kamel CLI

Configure and run the sink by using the following command: 

kamel bind channel:mychannel http-sink -p "sink.url=https://my-service/path"

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

22.3.2. Kafka Sink

You can use the http-sink Kamelet as a Kafka sink by binding it to a Kafka topic.

http-sink-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: http-sink-binding
spec:
  source:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: http-sink
    properties:
      url: "https://my-service/path"

22.3.2.1. 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.

22.3.2.2. Procedure for using the cluster CLI

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

  2. Run the sink by using the following command: 

    oc apply -f http-sink-binding.yaml

22.3.2.3. Procedure for using the Kamel CLI

Configure and run the sink by using the following command: 

kamel bind kafka.strimzi.io/v1beta1:KafkaTopic:my-topic http-sink -p "sink.url=https://my-service/path"

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

22.4. Kamelet source file

https://github.com/openshift-integration/kamelet-catalog/tree/kamelet-catalog-1.8//http-sink.kamelet.yaml