Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability.

Gordon allow you to integrate your lambdas with dynamodb using their streams service. DynamoDB Streams captures a time-ordered sequence of item-level modifications in any DynamoDB table, and stores this information in a log for up to 24 hours. Applications can access this log and view the data items as they appeared before and after they were modified, in near real time.

Every time one of our dynamodb tables get’s modified, dynamo notifies the stream, and one of our lambdas is executed.


As always, is not gordon’s business to create the source stream. You should create them in advance. You can read Why in the FAQ

Anatomy of the integration


    lambda: { LAMBDA_NAME }
    stream: { ARN }
    batch_size: { INT }
    starting_position: { STARTING_POSITION }


Integration Name

Name Key of the dynamodb map.
Required Yes
Valid types string
Max length 30
Description Name for your dynamodb integration. Try to keep it as short and descriptive as possible.


Name lambda
Required Yes
Valid types lambda-name
Description Name of the lambda you want to notify


Name stream
Required Yes
Valid types arn
Description Arn of the dynamodb stream you want to connect your lambda with.

Batch size

Name stream
Required No
Default 100
Valid types integer
Min 1
Max 10000
Description Number of events you want your lambda to receive at once

Starting position

Name starting_position
Required Yes
Description Number of events you want your lambda to receive at once
  • TRIM_HORIZON: Start reading at the last (untrimmed) stream record, which is the oldest record in the shard. In DynamoDB Streams, there is a 24 hour limit on data retention. Stream records whose age exceeds this limit are subject to removal (trimming) from the stream.
  • LATEST: Start reading just after the most recent stream record in the shard, so that you always read the most recent data in the shard.

Full Example



    lambda: app.dynamoconsumer
    stream: arn:aws:dynamodb:eu-west-1:123456789:table/dynamodbexample/stream/2015-11-14T11:18:58.642
    batch_size: 100
    starting_position: LATEST