dynamodb-iterator

Promise based DynamoDB data iterator. It uses Dynamo DB Document client and support scan and query iterator methods.

Install

$ npm install dynamodb-iterator

Basic Usage

const AWS = require('aws-sdk')
const createIterator = require('dynamodb-iterator')

const documentClient = new AWS.DynamoDB.DocumentClient()
const iterator = createIterator(documentClient)

// Note: This function can return a promise that will be resolved before the
//       next item gets called
function onData(item) {
  console.log('Item: ', item)
}

iterator.scan({ TableName: 'foo-table' }, onData).then(function() {
  // Note: This promise resolves when the method finishes streaming every
  //       item returned by the scan method.
  console.log('Finished')
})

queryTable = iterator
  .query(
    {
      TableName: 'foo-table',
      KeyConditionExpression: '#user = :user',
      ExpressionAttributeValues: { ':user': 'foo-user' },
      ExpressionAttributeNames: { '#user': 'user' },
    },
    onData,
  )
  .then(function() {
    // Note: This promise resolves when the method finishes streaming every
    //       item returned by the query method.
    console.log('Finished')
  })