Multi-line config variables in Heroku

Question

I\'ve have a Rails app that loads a number of RSA certificates before a transaction is made with Paypal. On my development machine, these certificates are read from files in

Answer 1

I found that a easy way to add multi-line configs is to double quote them and then echo them from my local environment

heroku config:add EC2_PRIVATE_KEY="$EC2_PRIVATE_KEY"

Answer 2

My answer comes a bit late but I had the same issue recently with multi-line env. variables on Heroku. My solution was to use strict_encode64:

encoded_secret = Base64.strict_encode64("my_multi_line_secret")

add the key:

$ heroku config:set SECRET_KEY='the encoded_secret string here'

In the code, you then decode it using Base64.strict_decode64(ENV['SECRET_KEY'])

Answer 3

If you want to set Heroku config values from your file contents, you can use the following shell trick:

$ heroku config:set SECRET_KEY="$(cat path/to/secret.key)"

Multi-line values can be set directly by putting quotes around the value:

$ heroku config:set SECRET_KEY='first line
> second line'

If you're using Foreman to run locally (now heroku local), it doesn't support multi-line variables. You must use something to inject them into the environment first, such as envdir:

$ envdir my-env-dir heroku local

Answer 4

Or you can just go to the Settings tab of the Heroku dashboard, open Config Vars and paste it in.

Easy peasy.

Answer 5

We needed to do the same thing.

You can wrap the variable value in double quotes:

bobvila@bobuntu:~/svnroot/app/myapp$ heroku config:add woodchuck="How much wood
> could a woodchuck chuck
> if a woodchuck could chuck wood"
Adding config vars and restarting myapp... done, v25
woodchuck: How much wood
could a woodchuck chuck
if a woodchuck could chuck wood
bobvila@bobuntu:~/svnroot/app/myapp$ heroku config
=== Config Vars for myapp
woodchuck:                       How much wood
could a woodchuck chuck
if a woodchuck could chuck wood
bobvila@bobuntu:~/svnroot/app/myapp$ 

If you're using Foreman for localhost development, the .env file doesn't support multi-line variables so you'll need to export it to the shell before launching Foreman

Answer 6

An example of how to deal with this problem using NodeJS. Sanitize the value by replacing \\n characters with \n:

process.env.FIREBASE_PRIVATE_KEY.replace(/\\n/g, '\n')

Taken from: Escaping issue with firebase privateKey as a Heroku config variable