set default payment method on all customers

setDefault.js

const stripe = require("stripe")(process.env.STRIPE_SECRET_KEY)

async function main(){
    for await (const customer of stripe.customers.list({limit: 100})) {
        const paymentMethods = (await stripe.customers.listPaymentMethods(
            customer.id,
            {type: 'card'}
          )).data;
        // if customer has PM and no default, set it
        if(paymentMethods.length > 0 !customer.invoice_settings.default_payment_method){
            console.log(`Setting ${paymentMethods[0].id} as default for ${customer.id}`)
            await stripe.customers.update(customer.id, {
                invoice_settings: {
                    default_payment_method: paymentMethods[0].id
                }
            })
        }
    }
}
main();