stripe-create-plan.js

const createPlan = async productId => {
    const PLAN_NICKNAME = "Monthly Subscription Plan";
    const PLAN_INTERVAL = "month";
    const CURRENCY = "usd";
    const PLAN_PRICE = 200;

    const plan = await stripe.plans.create({
        product: productId,
        nickname: PLAN_NICKNAME,
        currency: CURRENCY,
        interval: PLAN_INTERVAL,
        amount: PLAN_PRICE,
    });

    console.log(plan);
    return plan.id;
}