Saving and reading private key to env variables using base64

README.md

Encoding the private key as base64

• Copy the private key to clipboard
• Run command pbpaste | base64 | pbcopy on mac or xclip -selection clipboard -o | base64 -w 0 | xclip -selection clipboard on 'nix systems
• The private key is now base64 encoded in the clipboard. Paste it to env variable e.g. to heroku or to .env file

Decoding the private key from base64 in node.js

const private_key = new Buffer(process.env.PRIVATE_KEY, 'base64').toString('ascii');