GitHub Fax PR Reviews

And integration to allow reviewing and commenting on pull requests via fax.

Demo

https://vimeo.com/413450595

Requirements

• Must have a Twilio Account, and a fax capable phone number (instructions available as part of fax quickstart)
• Must have a Microsoft Cognitive Services Computer Vision resource set up (can be done as part of the Azure free tier)
• Must have a semi recent version of Node installed (built on v13.9.0)
• Must have a GitHub account and at least one repository

To Use

• Download repository
• Run npm install or yarn install
• Run cp .env.example .env to create new .env file
• Fill in env variables in .env file from your Twilio account
• Use npm start to run locally
• Use ngrok to expose the page
• In your Twilio Console, edit the fax capable number you're using to send
  • Change it to Accept Incoming Faxes (will likely be Voice Calls by default)
  • Change the **A Fax comes in ** webhook to be your ngrok url for the /sent function, eg. https://92832d0.ngrok.io/sent
• In the settings for your GitHub repository (https://github.com/{username}/{/settings), under Webhooks, create a new webhook with the /pr/open function (eg. https://92832d0.ngrok.io/pr/open) to be triggered on the Pull requests event

Env Variables

• TWILIO_ACCOUNT_SID - Account SID, found in Twilio Console on Dashboard
• TWILIO_AUTH_TOKEN - Account Auth Token, found in Twilio Console on Dashboard
• GITHUB_ACCESS_TOKEN - Personal Access Token for project, generated in GitHub Developer Settings (make sure it has repository access)
• GITHUB_USERNAME - Your GitHub Username
• COMPUTER_VISION_ENDPOINT - The endpoint for your Computer Vision resource in Azure, should look like {region}.api.cognitive.microsoft.com where region is the location of your service (list of regions in the Computer Vision API documentation)
• COMPUTER_VISION_KEY - The API key for your Computer Vision resource in Azure, found in the Azure portal under the Keys and Endpoint section
• SEND_NUMBER - The fax capable Twilio number you're sending the fax from
• RECEIVE_NUMBER - The fax number you're sending a fax to

Contributing

This was a fun project started as part of #TwilioHackathon in April 2020, but if you'd like to there's a couple more things that we wanted to look at doing

• Identify if the user has been selected as a reviewer for the PR
• If the user is a reviewer, adding the review data to the fax
• If the user is a reviewer, fetching the review data from the fax
• If the user is a reviewer, and they use the word "approve" somewhere in their comment, mark the PR as approved
• Link up Sendgrid to the fax part, so that receiving a fax sends the PDF via email, and a fax can be sent via email as well https://www.twilio.com/blog/fax-email-sendgrid-nodejs
• Add code changes to the fax so that the code can be viewed there
• Enable commenting as a different user (identifying user from fax number)