Skip to content

DynamoDB Record Object

The DynamoDB event will by default provide instances of record classes which will be easier to work with then a standard lambda event record object. This is the same object which will be passed down to the dataClass, if you provide on in your configuration. Below is a list of all the properties and example outputs for the DynamoDB event record:

Examples

Don't like reading documentation? Then look at our examples, which can be deployed in 1 command into your AWS account! 🤓

Record Properties

property type description
body object the new image of dynamodb record; created or updated
created float the approximate creationDate time
expired bool whether the ttl has expired
id str the id of the event which invoked the lambda
identity object the identity who triggered the dynamodb change
keys object the keys of DynamoDB record
name str the name of the event which invoked the lambda
newImage object the new image of dynamodb record; created or updated
oldImage object the old image of dynamodb record; updated or deleted
operation str triggered operation lambda (create, update, delete)
region str the region the record is from
size int the size in bytes of the record
source str the source of the event which invoked the lambda
sourceARN str the event source arn
streamType str the stream view type
version str the event version

record.region

1
2
3
4
console.log(record.region);

// example output:
'us-east-2'

record.id

1
2
3
4
console.log(record.id);

// example output:
'9a37c0d03eb60f7cf70cabc823de9907'

record.name

1
2
3
4
console.log(record.name);

// example output:
'INSERT'

record.source

1
2
3
4
console.log(record.source);

// example output:
'aws:dynamodb'

record.keys

Info

This is converted from the original DDB JSON to standard json

1
2
3
4
5
6
console.log(record.keys);

// example output:
{
    example_id: '123456789'
}

record.oldImage

Info

This is converted from the original DDB JSON to standard json

1
2
3
4
5
6
console.log(record.oldImage);

// example output:
{
    old_data: '123456789'
}

record.newImage

Info

This is converted from the original DDB JSON to standard json

1
2
3
4
5
6
console.log(record.newImage);

// example output:
{
    new_data: '123456789'
}

record.body

Info

This is converted from the original DDB JSON to standard json from newImage

1
2
3
4
5
6
console.log(record.body);

// example output:
{
    new_data: '123456789'
}

record.operation

1
2
3
4
console.log(record.operation);

// example output:
'create'

record.sourceARN

1
2
3
4
console.log(record.sourceARN);

// example output:
'arn:aws:dynamodb:us-east-1:771875143460:table/test-example/stream/2019-10-04T23:18:26.340'

record.version

1
2
3
4
console.log(record.version);

// example output:
'1.1'

record.streamType

1
2
3
4
console.log(record.streamType);

// example output:
'NEW_AND_OLD_IMAGES'

record.size

1
2
3
4
console.log(record.size);

// example output:
1124

record.created

1
2
3
4
console.log(record.created);

// example output:
1538695200.0 //unix timestamp

record.identity

1
2
3
4
5
6
7
console.log(record.identity);

// example output:
{
    type: 'Service',
    principalId: 'dynamodb.amazonaws.com'
}

record.expired

1
2
3
4
console.log(record.expired);

// example output:
false