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
• 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');

You can always conveniently encode using notepad++ MIME Tools as well:
https://www.technipages.com/how-to-base64-encode-and-decode-in-notepad/

0xB8c77482e45F1F44dE1745F52C74426C631bDD52

new Buffer is deprecated. We should use Buffer.from(env.GOOGLE_CREDENTIALS, 'base64').toString('ascii') instead.

Private key find