How to get object argument from npm script (NodeJS + TypeScript)

Question

I want to pass an object via NPM script like

  "update-user-roles": "ts-node user-roles.ts {PAID_USER: true, VIP: true}"

My function picks up the object but keeps adding additional commas so it's not updating the user correctly. How do I receive the object as is?

async function updateUserRoles(roles: any) {
    const userID = await getAuth().then((res) => res.uid);
    updateUser({
        userID: userID,
        fields: {
            roles: {
                roles
            },
        }
    })
    console.log(`User roles successfully added: ${roles}`)
}

const rolesString = JSON.stringify(process.argv.slice(2))
updateUserRoles(JSON.parse(rolesString))

I get the following message:

User roles successfully added: {PAID_USER:,true,,VIP:,true}

Answer 1

I couldn't get any of these answers to work, finally got a solution using the following:

The script:

"ts-node user-roles.ts '{\"PAID_USER\": true, \"VIP\": true}'"

Parse the object string back into an object using JSON.parse and pass to function:

const objArgStr = process.argv[2];

if (!objArgStr) {
  console.error('No argument provided.');
  process.exit(1);
}

const objArg = JSON.parse(objArgStr);
console.log('Object argument: ', objArg);

updateUserRoles(objArg)