Middy DynamoDB Unmarshall

Dynamo DB Stream event data parser for the middy framework, like json body parser but for dynamodb stream events

Simply uses AWS sdk's DynamoDB Document Client Converter to convert the data received in the New/Old Image of all records to plain json.

Why?

Taking inspiration from Json Body Parser, we decided to export this simple middleware we built

Install

To install this middleware you can use NPM:

npm install --save @distinction-dev/dynamo-unmarshall

Sample usage

const middy = require('@middy/core');
const dynamoUnmarshall = require('@middy/error-logger');

const handler = middy((event, context) => {
  // your handler logic
})

handler
  .use(dynamoUnmarshall())

Options

• aws property: The instance of the aws-sdk, If none is provided then it will simply import it.

• imageTypes property: An array providing which image types to convert can only contain "NewImage", "OldImage".

• converterOptions property: The options that you wanna pass to the DynamoDB converter.

License

Licensed under MIT License.