Use Lambda & S3 to save a copy of all sent email via Braze

Braze > Lambda > S3

Webhook URL: https://<api_gateway_url>/prod/uploadEmail?user_id={{${user_id}}}&template_name=<template_name>
Request Body: (select raw text), paste in entire email HTML

index.js

'use strict';

const uploadService = require('./service');

exports.handler = (event, context, callback) => {
  const filename = uploadService.buildFilename(event.queryStringParameters);
  uploadService.saveEmailToS3(event.body, filename);
  
  const response = {
    statusCode: 200,
    body: JSON.stringify({ "message": 'Email ' + filename + ' saved!'})
  };
  callback(null, response);
};

service.js

'use strict';

const AWS = require('aws-sdk');

function buildFilename(params) {
  const now = Date.now();
  
  return params.user_id + "/" + now + "_" + params.template_name + ".html";
}

function saveEmailToS3(data, filename) {
  AWS.config.update({ accessKeyId: process.env.ACCESS_KEY, secretAccessKey: process.env.SECRET_KEY });
  const s3 = new AWS.S3();
  
  console.log("Start uploading file to S3");
  const param = { Bucket: env.BUCKET, Key: filename, Body: data };
  
  s3.putObject(param, function(err, data) {
    if (err) {
      console.log(err, err.stack);
    } else {
      console.log('Successfully uploaded data');
    }
  });
}

module.exports = {
  saveEmailToS3: saveEmailToS3,
  buildFilename: buildFilename
};