aws ddb sink 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.

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 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

profileCredentialsName

Profile Credentials Name

If using a profile credentials provider this parameter will set the profile name.

string

secretKey

Secret Key

The secret key obtained from AWS.

string

sessionToken

Session Token

Amazon AWS Session Token used when the user needs to assume a IAM role.

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

useProfileCredentialsProvider

Profile Credentials Provider

Set whether the DynamoDB client should expect to load credentials through a profile credentials provider.

boolean

false

useSessionCredentials

Session Credentials

Set whether the DynamoDB client should expect to use Session Credentials. This is useful in situation in which the user needs to assume a IAM role for doing operations in DynamoDB.

boolean

false

Dependencies

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

  • 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:aws-ddb-sink"

You can now run it directly through the following command

camel run route.yaml

AWS DynamoDB Sink Kamelet Description

Authentication methods

In this Kamelet you have the possibility of avoiding the usage of explicit static credentials by specifying the useDefaultCredentialsProvider option and set it to true.

The order of evaluation for Default Credentials Provider is the following:

  • Java system properties - aws.accessKeyId and aws.secretKey.

  • Environment variables - AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY.

  • Web Identity Token from AWS STS.

  • The shared credentials and config files.

  • Amazon ECS container credentials - loaded from the Amazon ECS if the environment variable AWS_CONTAINER_CREDENTIALS_RELATIVE_URI is set.

  • Amazon EC2 Instance profile credentials.

You have also the possibility of using Profile Credentials Provider, by specifying the useProfileCredentialsProvider option to true and profileCredentialsName to the profile name.

Only one of access key/secret key or default credentials provider could be used

For more information about this you can look at AWS credentials documentation

Expected Data format for sink

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 "operation", "key" and "item" as top level properties that will be mapped to respective attribute value maps.

      {
        "operation": "PutItem"
        "key": {},
        "item": {}
      }

Kamelet source file

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

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