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POST /subscriptions/subscribe

Generates subscription for customer and returns a link to checkout session where user can review payment details, provides payment information, and purchase a subscription. Body params -
ParametertypeDescription
priceIdstringId of the price for subscription
Returns checkoutLink url with checkout form. Stripe call snippet - 
  const session = await stripeService.checkout.sessions.create({
    mode: 'subscription',
    customer: user.stripeId,
    line_items: [{
      quantity: 1,
      price: priceId,
    }],
    success_url: `${config.webUrl}?subscriptionPlan=${priceId}`,
    cancel_url: config.WEB_URL,
  });
Parameters description -
ParametertypeDescription
modestringThe mode of the Checkout Session. For subscription it should be set to subscription
customerstringid of the stripe customer. if undefined, stripe will ask for the user’s email and create a new customer upon purchasing
line_itemsarrayArray with information about items that will be included in checkout session
  • quantity
  • price
  • number
  • string
  • Amount of items (usually 1 for subscription)
  • id of the specific price of the product
success_urlstringThe URL to which Stripe should send customers when payment or setup is complete
cancel_urlstringThe URL the customer will be directed to if they decide to cancel payment and return to your website
More information about stripe checkout object - link

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POST /subscriptions/cancel-subscription

Cancels prolongation of a customer’s subscription. The customer will not be charged again for the subscription. Stripe call snippet - 
  stripeService.subscriptions.update(user.subscription?.subscriptionId as string, {
      cancel_at_period_end: true,
  });
Parameters description -
ParametertypeDescription
customerstringid of the stripe customer
cancel_at_period_endbooleanIndicating whether this subscription should cancel at the end of the current period.
More information about subscription update - link

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POST /subscriptions/upgrade

Changes customer’s subscription plan (billing period or subscription plan) Body params -
ParametertypeDescription
priceIdstringId of the price for subscription
Stripe call snippet - 
  const subscriptionDetails = await stripeService.subscriptions.retrieve(subscriptionId);

  const items = [{
    id: subscriptionDetails.items.data[0].id,
    price: priceId,
  }];

  await stripeService.subscriptions.update(subscriptionId, {
    proration_behavior: 'always_invoice',
    cancel_at_period_end: false,
    items,
  });
Parameters description -
ParametertypeDescription
subscriptionIdstringid of the customer’s active subscription
proration_behaviorstringDetermines how to handle prorations when the billing cycle changes (switching plan in this case). parameter Always_invoice is used to charge the customer immediately
cancel_at_period_endstringBoolean indicating whether this subscription should cancel at the end of the current period.
itemsarrayarray with information about subscription items
  • id
  • price
  • string
  • string
  • id of the customer’s active subscription
  • id of the specific price of the product
More information about subscription update - link

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GET /subscriptions/current

Returns detailes subscription information along with pending invoice Stripe call snippet - 
  const product = await stripeService.products.retrieve(user.subscription?.productId);
ParametertypeDescription
productIdstringid of the product (subscription)
More information about products - link 
  const pendingInvoice = await stripeService.invoices.retrieveUpcoming({
    subscription: user.subscription?.subscriptionId,
  });
ParametertypeDescription
subscriptionstringid of the customer’s active subscription
More information about invoices - link

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GET /subscriptions/preview-upgrade

Returns invoice with billing information of subscription upgrade/downgrade Query params -
ParametertypeDescription
priceIdstringId of the price for subscription
Returns invoice with payment details Code snippet - 
  if (priceId === 'price_0') {
    items = [{
      id: subscriptionDetails.items.data[0].id,
      price_data: {
        currency: 'USD',
        product: user.subscription?.productId,
        recurring: {
          interval: subscriptionDetails.items.data[0].price.recurring?.interval,
          interval_count: 1,
        },
        unit_amount: 0,
      },
    }];
  } else {
    items = [{
      id: subscriptionDetails.items.data[0].id,
      price: priceId,
    }];
  }

  const invoice = await stripeService.invoices.retrieveUpcoming({
    customer: user.stripeId || undefined,
    subscription: user.subscription?.subscriptionId,
    subscription_items: items,
    subscription_proration_behavior: 'always_invoice',
  });
Parameters description -
ParametertypeDescription
customerstringid of the stripe customer
subscriptionstringid of customer’s active subscription
subscription_proration_behaviorstringDetermines how to handle prorations when the billing cycle changes (e.g., when switching plans, resetting billing_cycle_anchor=now, or starting a trial), or if an item’s quantity changes.
subscription_itemsarrayarray with information about subscription items
  • id
  • price
  • string
  • string
  • id of the customer’s active subscription
  • id of the specific price of the product
In case the customer chooses free plan, we need to send a custom price object to stripe with unit_amount set to 0 in order to receive invoice with empty products and information about a refund for canceled subscription Price data parameters -
ParametertypeDescription
currencystringThree-letter ISO currency code, in lowercase.
productstringid of subscription product
recurringobjectThe recurring components of a price such as interval and interval_count
  • interval
  • interval_count
  • string
  • number
  • Specifies billing frequency. Either day, week, month or year.
  • The number of intervals between subscription billings
unit_amountnumberA positive integer in cents (or 0 for a free price) representing how much to charge.
More information about previewing upcoming invoices - link