A simple Twilio to Dropbox integration

Capture SMS/MMS data sent to a Twilio phone number into a Dropbox folder. Dropbox folder will contain one directory for each sender's phone number, which will amount to a log/store of messages and media.

1. Configure a Dropbox app and note the API token
2. Deploy this code to a remote server (set DROPBOX_TOKEN env var) and note the URL
3. Configure Twilio to send POST messages to the URL

1. configure Dropbox

• sign up for a Dropbox and log in
• go to https://www.dropbox.com/developers (see link in footer of Dropbox)
• go to My Apps (see nav links at left)
• click Create App button
• Choose an API: "Dropbox API"
• Choose type of access you need: "App Folder"
• Name your app: type in a name, like "my-law-office-photobomb"
• Finish the form by clicking "Create App" button at bottom
• Now seeing the app's config screen (titled, as per previous example, "my-law-office-photobomb", scroll down to section called OAuth2
• Under "Generate access token", click "Generate" button

2. configure Heroku

• sign up for $7/mo "hobby" (can't do free plan, because it will miss some of the callback requests)
• install up Heroku CLI: https://devcenter.heroku.com/articles/heroku-command-line
• git clone this repository: $ git clone <repo-address-here>
• navigate into the app's code: $ cd <repo-name>
• set 'heroku' git remote $ git add remote heroku <heroku-app-git-address-here>
• set DROPBOX_TOKEN env var in heroku app: $ heroku config:set DROPBOX_TOKEN=<token>
• push code to heroku remote: $ git push heroku

3. configure Twilio

• set up a Twilio account (cost is $50 for the number, $1/month, $.01/message)
• configure callback URL for POST based on Heroku URL

• DROPBOX_TOKEN - Dropbox OAuth2 Token (required)
• TWILIO_ACCOUNT_SID - Twilio Account SID (required)
• TWILIO_AUTH_TOKEN - Twilio Auth Token (required)
• TWILIO_DELETE_MEDIA - Whether to remove media from Twilio after retrieval. Default: False
• TWILIO_DELETE_MESSAGES - Whether to remove messages from Twilio after retrieval. Default: False