Custom Premint Server

Custom Premint is an app where users connect their Metamask, Discord and Twitter to get special roles in relative Discord server. There is already Premint existing but this app allows you to customize it, add special roles based on what logic you want. Client app that using this api is https://github.com/maniaxnft/custom-premint-client

• I tried to follow the main principles of 12 Factor App by giving all private fields(client secrets, discord channel id's etc) by .env file, also there is nearly no logic related to specific environments. This way I was able to make this project open-source.

Technologies

• Used OAuth 2.0 flow of Twitter and Discord to get user ids and user names
• Used Sign-in with Ethereum so people do not need to provide their email or username and keep their personal data
• When you sign a message with Metamask, I verify the signed message at the server side, only by then I set the jwt token to browser's cookies
• Used Invisible reCAPTCHA to prevent bot's
• Used node-cron to check every hour if users are completed the whitelist requirements by checking quoted tweets from Twitter Api etc

Step 1

• Create .env.local and .env.prod file, copy and paste the variables from .env.example
• Create Discord app and get client_id and client_secret and add them to the DISCORD_CLIENT_ID and DISCORD_CLIENT_SECRET env vars
• Create Twitter app and get bearer token, consumer token, consumer token secret, access token and access token secret and place them in env vars as TWITTER_BEARER_TOKEN TWITTER_CONSUMER_KEY TWITTER_CONSUMER_SECRET TWITTER_ACCESS_TOKEN_KEY TWITTER_ACCESS_TOKEN_SECRET

Step 2

• Other environment variables are mostly self explanatory and project specific, feel free to ask them if you do not get what is it about
• Enter relevant env vars within .env file by checking .env.example

Step 3

• Install npm packages & Run the app

yarn && node src/index.js

Notes

Future Development

• Add Typescript