rails5-cookie-parser

Rails 5 (5.2.4.4) cookie parser.

TL;DR

This works on a standard install of Rails 5.2.4.4. Feel free to write a pull request if you see a way this can be improved. Tests works with what I used on my localhost, and that'll do for now.

Usage

I'm sure you know these better than me. So first: npm i rails5-cookie-parser --save

You'll need to set up your ENV values next:

SECRET_KEY_BASE
=> Required. Copy-paste it from +Rails.application.secret_key_base+.
SECRET_KEY_SALT
=> Optional. Hardcoded in Rails to +'authenticated encrypted cookie'+ but you can modify it, it seems?
SECRET_KEY_ITER
SECRET_KEY_LEN
=> Optional. Don't touch them, unless you change them in Rails.

Also, you need cookieParser.

And then you can:

const cookieParser = require('cookie-parser');
const railsCookieParser = require('rails5-cookie-parser')
 
const app = express();
app.use(cookieParser());
app.use(railsCookieParser.decipherRailCookies)
app.use(function (req, res, next) {
  console.log(req.rails_session)
})
...

Credits

Some StackOverflow, a lot of ActiveSupport source code, a huge help from @rjz, and the rest is me.