aws ddb sink AWS DynamoDB Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

Send data to AWS DynamoDB service. The sent data will insert/update/delete an item on the given AWS DynamoDB table.

Access Key/Secret Key are the basic method for authenticating to the AWS DynamoDB service. These parameters are optional, because the Kamelet provide also the 'useDefaultCredentialsProvider'.

When using a default Credentials Provider the AWS DynamoDB client will load the credentials through this provider and won’t use the static credential. This is reason for not having the access key and secret key as mandatory parameter for this Kamelet.

This Kamelet expects a JSON as body. The mapping between the JSON fields and table attribute values is done by key, so if you have the input:

'{"username":"oscerd", "city":"Rome"}'

The Kamelet will insert/update an item in the given AWS DynamoDB table and set the attributes 'username' and 'city' respectively. Please note that the JSON object must include the primary key values that define the item.

Configuration Options

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

Property Name Description Type Default Example

region

AWS Region

Required The AWS region to connect to.

string

eu-west-1

table

Table

Required Name of the DynamoDB table to look at.

string

accessKey

Access Key

The access key obtained from AWS.

string

operation

Operation

The operation to perform (one of PutItem, UpdateItem, DeleteItem).

string

PutItem

PutItem

overrideEndpoint

Endpoint Overwrite

Set the need for overiding the endpoint URI. This option needs to be used in combination with uriEndpointOverride setting.

boolean

false

secretKey

Secret Key

The secret key obtained from AWS.

string

uriEndpointOverride

Overwrite Endpoint URI

Set the overriding endpoint URI. This option needs to be used in combination with overrideEndpoint option.

string

useDefaultCredentialsProvider

Default Credentials Provider

Set whether the DynamoDB client should expect to load credentials through a default credentials provider or to expect static credentials to be passed in.

boolean

false

writeCapacity

Write Capacity

The provisioned throughput to reserved for writing resources to your table.

integer

1

Dependencies

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

  • github:apache.camel-kamelets:camel-kamelets-utils:0.8.2-SNAPSHOT

  • camel:core

  • camel:jackson

  • camel:aws2-ddb

  • camel:kamelet

Usage

This section describes how you can use the aws-ddb-sink.

Knative sink

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

aws-ddb-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: aws-ddb-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: aws-ddb-sink
    properties:
      region: eu-west-1
      table: The Table

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the aws-ddb-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:

    kubectl apply -f aws-ddb-sink-binding.yaml

Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind aws-ddb-sink -p "sink.region=eu-west-1" -p "sink.table=The Table" channel:mychannel

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

Kafka sink

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

aws-ddb-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: aws-ddb-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: aws-ddb-sink
    properties:
      region: eu-west-1
      table: The Table

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 aws-ddb-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:

    kubectl apply -f aws-ddb-sink-binding.yaml

Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind aws-ddb-sink -p "sink.region=eu-west-1" -p "sink.table=The Table" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic

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

Kamelet source file

https://github.com/apache/camel-kamelets/blob/main/kamelets/aws-ddb-sink.kamelet.yaml

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