API Gateway + Lambda で SNS にメッセージ投稿する ref: http://qiita.com/u-minor/items/f1eb05b3d333e8cc45a6

file1.txt

aws --region us-east-1 lambda create-function \
  --function-name lambda-newrelic-sns \
  --runtime nodejs \
  --role arn:aws:iam::xxxxxxxx:role/lambda_sns_execution \
  --handler index.handler \
  --description 'Send message to Amazon SNS' \
  --timeout 3 \
  --memory-size 128 \
  --zip-file fileb://dist/lambda.zip

index.coffee

topicArn = 'YOUR_TOPIC_ARN'
snsRegion = 'ap-northeast-1'

AWS = require 'aws-sdk'
AWS.config.update region: snsRegion
sns = new AWS.SNS()

exports.handler = (event, context) ->
  params =
    Message: JSON.stringify(default: JSON.stringify(event))
    MessageStructure: 'json'
    Subject: event.condition_name
    TopicArn: topicArn

  sns.publish params, (err, data) ->
    if err
      context.done null, err
      return

    context.done null, 'Post succeeded.'
  return