Easy way to batch set Heroku config from a file. No one wants to do this manually(!?).

heroku-set-configs-from-file.md

#Heroku set configs from files

• Export your configs from Heroku in "shell" format to file:

  $ heroku config -a <app_name> -s > .env-<environment_name(production, staging, ...)>
  

• Copy this script to a file

  #!/bin/bash
  ESC_SEQ="\x1b["
  COL_RESET=$ESC_SEQ"39;49;00m"
  COL_GREEN=$ESC_SEQ"32;01m"
  COL_MAGENTA=$ESC_SEQ"35;01m"
  COL_RED=$ESC_SEQ"31;01m"
  
  script=`basename $0`
  
  if [ $# -ne 2 ]
  then
      echo -e $COL_RED"Usage: $script config_env_name heroku_app"$COL_RESET
  else
      echo -e $COL_GREEN"Setting up env:$1 on heroku:$2"$COL_RESET
      vars=$(cat .env-$1)
      command="heroku config:set $vars -a $2"
  
      echo $command
      eval $command
  fi

• Run it!

  $ ./heroku-vars <environment_name(production, staging, ...)> <app_name>
  

###Note Make sure you double quote any spaced values in the config files. Heroku don't double quote those param values and will create an error when you try to run this script.

If you have a fix for this, post it below!

If you have your envvars already in a .env file, you can just use cat .env | xargs heroku config:set

If you have your envvars already in a .env file, you can just use cat .env | xargs heroku config:set

Haha, this happens to be useful 4 years later

If you have your envvars already in a .env file, you can just use cat .env | xargs heroku config:set

Thank you. Still works

If you have your envvars already in a .env file, you can just use cat .env | xargs heroku config:set

Works! 👍