Package Exports

aws-dynamodb-lambda-trigger
aws-dynamodb-lambda-trigger/lambda

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (aws-dynamodb-lambda-trigger) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

aws-dynamodb-lambda-trigger

Cleans up the code you need to run a DynamoDB trigger on AWS Lambda.

var trigger = require('aws-dynamodb-lambda-trigger')

// regular lambda fn business here
exports.handler = function myLambdaTriggerForTableName(event, context) {

  // register a handler for inserts
  trigger.insert(event, context, function handleInsert(record, callback) {
    console.log(record)
    callback()
  })
}

api

trigger.insert(event, context, handler) register a handler for INSERT
trigger.modify(event, context, handler) register a handler for MODIFY
trigger.remove(event, context, handler) register a handler for REMOVE
trigger.all(event, context, handler) register a handler for INSERT, MODIFY and REMOVE
trigger.save(event, context, handler) register a handler for INSERT, MODIFY
trigger.change(event, context, handler) register a handler for INSERT and REMOVE

In all cases the handler is a function with the following signature:

function handleSave(record, callback) {
  // do something with record and then callback node-style
  // if an err is passed to the callback it will be passed to context.fail
  callback(null, record)
}

even CLEANER api

var trigger = require('aws-dynamodb-lambda-trigger/lambda')

// runs on every record inserted
function handler(record, callback) {
  callback()
}

exports.handler = trigger.insert(handler)