aws ddb streams source AWS DynamoDB Streams Source

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Stable"

Receive events from Amazon DynamoDB Streams.

Configuration Options

The following table summarizes the configuration options available for the aws-ddb-streams-source 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

delay

Delay

The number of milliseconds before the next poll from the database.

integer

500

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

streamIteratorType

Stream Iterator Type

Defines where in the DynamoDB stream to start getting records. There are two enums and the value can be one of FROM_LATEST and FROM_START. Note that using FROM_START can cause a significant delay before the stream has caught up to real-time.

string

FROM_LATEST

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-streams-source Kamelet relies upon the presence of the following dependencies:

  • camel:gson

  • 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:aws-ddb-streams-source"
      parameters:
        .
        .
        .
      steps:
        - to:
            uri: "kamelet:log-sink"

You can now run it directly through the following command

camel run route.yaml

AWS DynamoDB Streams Source 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

Kamelet source file

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

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