AWS DynamoDB Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Stable"

Send data to Amazon DynamoDB. The sent data inserts, updates, or deletes an item on the specified AWS DynamoDB table.

The basic authentication method for the AWS DynamoDB service is to specify an access key and a secret key. These parameters are optional because the Kamelet provides a default credentials provider.

If you use the default credentials provider, the DynamoDB client loads the credentials through this provider and doesn’t use the basic authentication method.

This Kamelet expects a JSON-formatted body and it must include the primary key values that define the DynamoDB item. The mapping between the JSON fields and table attribute values is done by key. For example, for '{"username":"oscerd", "city":"Rome"}' input, the Kamelet inserts or update an item in the specified AWS DynamoDB table and sets the values for the 'username' and 'city' attributes.

For PutItem operation the Json body defines all item attributes. For DeleteItem operation the Json body defines only the primary key attributes that identify the item to delete. For UpdateItem operation the Json body defines both key attributes to identify the item to be updated and all item attributes tht get updated on the item.

The given Json body can use "key" and "item" as top level properties. Both define a Json object that will be mapped to respective attribute value maps { "key": {}, "item": {} }

Configuration Options

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

Property Name Description Type Default Example

Property	Name	Description	Type	Default	Example
region	AWS Region	Required The AWS region to access. Enum values: * ap-south-1 * eu-south-1 * us-gov-east-1 * me-central-1 * ca-central-1 * eu-central-1 * us-iso-west-1 * us-west-1 * us-west-2 * af-south-1 * eu-north-1 * eu-west-3 * eu-west-2 * eu-west-1 * ap-northeast-3 * ap-northeast-2 * ap-northeast-1 * me-south-1 * sa-east-1 * ap-east-1 * cn-north-1 * us-gov-west-1 * ap-southeast-1 * ap-southeast-2 * us-iso-east-1 * ap-southeast-3 * us-east-1 * us-east-2 * cn-northwest-1 * us-isob-east-1 * aws-global * aws-cn-global * aws-us-gov-global * aws-iso-global * aws-iso-b-global	string
table	Table	Required The name of the DynamoDB table.	string
accessKey	Access Key	The access key obtained from AWS.	string
operation	Operation	The operation to perform. Enum values: * PutItem * UpdateItem * DeleteItem	string	PutItem	PutItem
overrideEndpoint	Endpoint Overwrite	Select this option to override the endpoint URI. To use this option, you must also provide a URI for the `uriEndpointOverride` option.	boolean	false
secretKey	Secret Key	The secret key obtained from AWS.	string
uriEndpointOverride	Overwrite Endpoint URI	The overriding endpoint URI. To use this option, you must also select the `overrideEndpoint` option.	string
useDefaultCredentialsProvider	Default Credentials Provider	If true, the DynamoDB client loads credentials through a default credentials provider. If false, it uses the basic authentication method (access key and secret key).	boolean	false

region

AWS Region

Required The AWS region to access.

Enum values:

* ap-south-1 * eu-south-1 * us-gov-east-1 * me-central-1 * ca-central-1 * eu-central-1 * us-iso-west-1 * us-west-1 * us-west-2 * af-south-1 * eu-north-1 * eu-west-3 * eu-west-2 * eu-west-1 * ap-northeast-3 * ap-northeast-2 * ap-northeast-1 * me-south-1 * sa-east-1 * ap-east-1 * cn-north-1 * us-gov-west-1 * ap-southeast-1 * ap-southeast-2 * us-iso-east-1 * ap-southeast-3 * us-east-1 * us-east-2 * cn-northwest-1 * us-isob-east-1 * aws-global * aws-cn-global * aws-us-gov-global * aws-iso-global * aws-iso-b-global

string

table

Table

Required The name of the DynamoDB table.

string

accessKey

Access Key

The access key obtained from AWS.

string

operation

Operation

The operation to perform.

Enum values:

* PutItem * UpdateItem * DeleteItem

string

PutItem

overrideEndpoint

Endpoint Overwrite

Select this option to override the endpoint URI. To use this option, you must also provide a URI for the uriEndpointOverride option.

boolean

false

secretKey

Secret Key

The secret key obtained from AWS.

string

uriEndpointOverride

Overwrite Endpoint URI

The overriding endpoint URI. To use this option, you must also select the overrideEndpoint option.

string

useDefaultCredentialsProvider

Default Credentials Provider

If true, the DynamoDB client loads credentials through a default credentials provider. If false, it uses the basic authentication method (access key and secret key).

boolean

false

Dependencies

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

mvn:org.apache.camel.kamelets:camel-kamelets-utils:4.0.4-SNAPSHOT
camel:core
camel:jackson
camel:aws2-ddb
camel:kamelet

Camel JBang usage

Prerequisites

You’ve installed JBang.
You have executed the following command:

jbang app install camel@apache/camel

Supposing 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"

You can now run it directly through the following command

camel run route.yaml

Camel K Environment 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/v1
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/v1
      name: aws-ddb-sink
    properties:
      region: The AWS Region
      table: The Table

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

Save the aws-ddb-sink-binding.yaml file to your local drive, and then edit it as needed for your configuration.
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 channel:mychannel -p "sink.region=The AWS Region" -p "sink.table=The Table" aws-ddb-sink

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/v1
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/v1
      name: aws-ddb-sink
    properties:
      region: The AWS Region
      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

Save the aws-ddb-sink-binding.yaml file to your local drive, and then edit it as needed for your configuration.
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 kafka.strimzi.io/v1beta1:KafkaTopic:my-topic -p "sink.region=The AWS Region" -p "sink.table=The Table" aws-ddb-sink

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