Chapter 2. Avro Deserialize Action
Deserialize payload to Avro
2.1. Configuration Options
The following table summarizes the configuration options available for the avro-deserialize-action Kamelet:
| Property | Name | Description | Type | Default | Example |
|---|---|---|---|---|---|
| schema * | Schema | The Avro schema to use during serialization (as single-line, using JSON format) | string |
| |
| validate | Validate | Indicates if the content must be validated against the schema | boolean |
|
Fields marked with an asterisk (*) are mandatory.
2.2. Dependencies
At runtime, the avro-deserialize-action Kamelet relies upon the presence of the following dependencies:
- github:openshift-integration.kamelet-catalog:camel-kamelets-utils:kamelet-catalog-1.6-SNAPSHOT
- camel:kamelet
- camel:core
- camel:jackson-avro
2.3. Usage
This section describes how you can use the avro-deserialize-action.
2.3.1. Knative Action
You can use the avro-deserialize-action Kamelet as an intermediate step in a Knative binding.
avro-deserialize-action-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
name: avro-deserialize-action-binding
spec:
source:
ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: timer-source
properties:
message: '{"first":"Ada","last":"Lovelace"}'
steps:
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: json-deserialize-action
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: avro-serialize-action
properties:
schema: "{\"type\": \"record\", \"namespace\": \"com.example\", \"name\": \"FullName\", \"fields\": [{\"name\": \"first\", \"type\": \"string\"},{\"name\": \"last\", \"type\": \"string\"}]}"
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: avro-deserialize-action
properties:
schema: "{\"type\": \"record\", \"namespace\": \"com.example\", \"name\": \"FullName\", \"fields\": [{\"name\": \"first\", \"type\": \"string\"},{\"name\": \"last\", \"type\": \"string\"}]}"
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: json-serialize-action
sink:
ref:
kind: Channel
apiVersion: messaging.knative.dev/v1
name: mychannel
2.3.1.1. Prerequisite
Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.
2.3.1.2. Procedure for using the cluster CLI
-
Save the
avro-deserialize-action-binding.yamlfile to your local drive, and then edit it as needed for your configuration. Run the action by using the following command:
oc apply -f avro-deserialize-action-binding.yaml
2.3.1.3. Procedure for using the Kamel CLI
Configure and run the action by using the following command:
kamel bind --name avro-deserialize-action-binding timer-source?message='{"first":"Ada","last":"Lovelace"}' --step json-deserialize-action --step avro-serialize-action -p step-1.schema='{"type": "record", "namespace": "com.example", "name": "FullName", "fields": [{"name": "first", "type": "string"},{"name": "last", "type": "string"}]}' --step avro-deserialize-action -p step-2.schema='{"type": "record", "namespace": "com.example", "name": "FullName", "fields": [{"name": "first", "type": "string"},{"name": "last", "type": "string"}]}' --step json-serialize-action channel:mychannelThis command creates the KameletBinding in the current namespace on the cluster.
2.3.2. Kafka Action
You can use the avro-deserialize-action Kamelet as an intermediate step in a Kafka binding.
avro-deserialize-action-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
name: avro-deserialize-action-binding
spec:
source:
ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: timer-source
properties:
message: '{"first":"Ada","last":"Lovelace"}'
steps:
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: json-deserialize-action
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: avro-serialize-action
properties:
schema: "{\"type\": \"record\", \"namespace\": \"com.example\", \"name\": \"FullName\", \"fields\": [{\"name\": \"first\", \"type\": \"string\"},{\"name\": \"last\", \"type\": \"string\"}]}"
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: avro-deserialize-action
properties:
schema: "{\"type\": \"record\", \"namespace\": \"com.example\", \"name\": \"FullName\", \"fields\": [{\"name\": \"first\", \"type\": \"string\"},{\"name\": \"last\", \"type\": \"string\"}]}"
- ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: json-serialize-action
sink:
ref:
kind: KafkaTopic
apiVersion: kafka.strimzi.io/v1beta1
name: my-topic
2.3.2.1. 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.
2.3.2.2. Procedure for using the cluster CLI
-
Save the
avro-deserialize-action-binding.yamlfile to your local drive, and then edit it as needed for your configuration. Run the action by using the following command:
oc apply -f avro-deserialize-action-binding.yaml
2.3.2.3. Procedure for using the Kamel CLI
Configure and run the action by using the following command:
kamel bind --name avro-deserialize-action-binding timer-source?message='{"first":"Ada","last":"Lovelace"}' --step json-deserialize-action --step avro-serialize-action -p step-1.schema='{"type": "record", "namespace": "com.example", "name": "FullName", "fields": [{"name": "first", "type": "string"},{"name": "last", "type": "string"}]}' --step avro-deserialize-action -p step-2.schema='{"type": "record", "namespace": "com.example", "name": "FullName", "fields": [{"name": "first", "type": "string"},{"name": "last", "type": "string"}]}' --step json-serialize-action kafka.strimzi.io/v1beta1:KafkaTopic:my-topicThis command creates the KameletBinding in the current namespace on the cluster.
