Using an if statement to run a script in Npm

Is there a way to configure an npm run script to use different AWS accounts based on the environment?

{
  "config": {
    "acc": if ({npm_config_env} == "dev") "account1" else "account_2" 
  },
   "scripts":{
     "con": "AWS_DEFAULT_PROFILE=${npm_package_config_acc} aws s3"
   }
}

For example, when running npm run con --env=dev, account1 should be used.

And when running npm run con --env=prod, account2 should be used.

I've searched online but couldn't find any information on whether or not npm run can handle if statements. If anyone knows of a workaround, I would greatly appreciate it!

javascriptnpm

Answer №1

Since package.json is in JSON format, it does not support if else or any other programming syntax.

An alternative solution for this scenario is to use if else statements from a shell script, as the scripts in package.json are executed in a shell environment.

{
  "scripts": {
    "con": "AWS_DEFAULT_PROFILE=$(if [ $npm_config_env = dev ]; then echo \"account1\"; else echo \"account_2\"; fi) aws s3",
  }
}

The provided script will assign a value to AWS_DEFAULT_PROFILE based on certain conditions.

Important Note: Since these scripts run in a shell, they should be specific to the type of shell being used. The above scripts are designed to work in bash or similar shells.

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