ember-cli-deploy integration with dynamodb

get-revision.js

import AWS from 'aws-sdk'
import Promise from 'bluebird'

const env = global.env.env
const ddb = new AWS.DynamoDB({ region: 'us-east-1' })
const TableName = global.env.dynamodb.TableName
const revisionPrefix = global.env.revisionPrefix
const revisionEnv = env === 'development' ? 'beta' : env

export default ({ revision = null } = {}) => {
  if(revision) {
    return getRevision(revision)
  } else {
    return getCurrentRevisionId().then(getRevision)
  }
}

function getCurrentRevisionId() {
  return new Promise((resolve, reject) => {
    const params = {
      TableName,
      Key: {
        id: { S: `${revisionPrefix}${revisionEnv}` }
      }
    }
    ddb.getItem(params, (error, response) => {
      if(error) {
        reject(error)
      } else {
        resolve(response.Item.value.S.replace(revisionPrefix, ''))
      }
    })
  })
}

function getRevision(revision) {
  return new Promise((resolve, reject) => {
    const params = {
      TableName,
      Key: {
        id: { S: `${revisionPrefix}${revision}` }
      }
    }
    ddb.getItem(params, (error, response) => {
      if(error) {
        reject(error)
      } else {
        resolve(response.Item.value.S.toString('utf8'))
      }
    })
  })
}