Dub

import { cookies } from 'next/headers';
import DodoPayments from 'dodopayments';

const client = new DodoPayments();

export async function createCheckout(productId: string, customerId: string) {
  // Capture Dub click ID from cookie (cookies() is async in Next.js 15 and later)
  const dubClickId = (await cookies()).get('dub_id')?.value;

  const payment = await client.payments.create({
    billing: {
      city: 'New York',
      country: 'US',
      state: 'NY',
      street: '123 Main St',
      zipcode: '10001',
    },
    customer: {
      email: 'customer@example.com',
      name: 'John Doe',
    },
    product_cart: [{ product_id: productId, quantity: 1 }],
    metadata: {
      dub_click_id: dubClickId ?? '',     // Store Dub click ID
      dub_external_id: customerId,        // Store your customer's unique ID
    },
  });

  return payment;
}

const express = require('express');
const DodoPayments = require('dodopayments').default;
const router = express.Router();

const client = new DodoPayments();

router.post('/create-checkout', async (req, res) => {
  // Capture Dub click ID from cookie (req.cookies requires the cookie-parser middleware)
  const dubClickId = req.cookies?.dub_id;

  const payment = await client.payments.create({
    billing: {
      city: 'New York',
      country: 'US',
      state: 'NY',
      street: '123 Main St',
      zipcode: '10001',
    },
    customer: {
      email: req.body.email,
      name: req.body.name,
    },
    product_cart: [{ product_id: req.body.productId, quantity: 1 }],
    metadata: {
      dub_click_id: dubClickId,           // Store Dub click ID
      dub_external_id: req.body.customerId, // Store your customer's unique ID
    },
  });

  res.json({ payment });
});

from fastapi import FastAPI, Request
from dodopayments import DodoPayments

app = FastAPI()
client = DodoPayments()

@app.post("/create-checkout")
async def create_checkout(request: Request):
    # Capture Dub click ID from cookie (empty string if the cookie is missing)
    dub_click_id = request.cookies.get("dub_id", "")

    body = await request.json()

    payment = client.payments.create(
        billing={
            "city": "New York",
            "country": "US",
            "state": "NY",
            "street": "123 Main St",
            "zipcode": "10001",
        },
        customer={
            "email": body["email"],
            "name": body["name"],
        },
        product_cart=[{"product_id": body["product_id"], "quantity": 1}],
        metadata={
            "dub_click_id": dub_click_id,          # Store Dub click ID
            "dub_external_id": body["customer_id"], # Store your customer's unique ID
        },
    )

    return {"payment": payment}

package main

import (
    "context"

    "github.com/dodopayments/dodopayments-go"
    "github.com/dodopayments/dodopayments-go/shared"
)

func createCheckout(dubClickId, customerId, productId string) (*dodopayments.PaymentNewResponse, error) {
    client := dodopayments.NewClient()

    payment, err := client.Payments.New(context.Background(), dodopayments.PaymentNewParams{
        Billing: dodopayments.F(dodopayments.BillingAddressParam{
            City:    dodopayments.F("New York"),
            Country: dodopayments.F(dodopayments.CountryCodeUs),
            State:   dodopayments.F("NY"),
            Street:  dodopayments.F("123 Main St"),
            Zipcode: dodopayments.F("10001"),
        }),
        Customer: dodopayments.F[dodopayments.CustomerRequestUnionParam](
            dodopayments.NewCustomerParam{
                Email: dodopayments.F("customer@example.com"),
                Name:  dodopayments.F("John Doe"),
            },
        ),
        ProductCart: dodopayments.F([]dodopayments.OneTimeProductCartItemParam{{
            ProductID: dodopayments.F(productId),
            Quantity:  dodopayments.F(int64(1)),
        }}),
        Metadata: dodopayments.F(dodopayments.MetadataParam{
            "dub_click_id":    shared.UnionString(dubClickId), // Store Dub click ID
            "dub_external_id": shared.UnionString(customerId), // Store your customer's unique ID
        }),
    })

    return payment, err
}

'use server';

import { Dub } from 'dub';

const dub = new Dub();

export async function trackSale(
  paymentId: string,
  clickId: string,
  customerId: string,
  amount: number,
  currency: string
) {
  await dub.track.sale({
    clickId: clickId,
    customerExternalId: customerId,
    amount: amount,
    currency: currency,
    paymentProcessor: 'custom',
    invoiceId: paymentId,
  });
}

const { Dub } = require('dub');

const dub = new Dub();

async function trackSale(payment) {
  if (payment.metadata?.dub_click_id) {
    await dub.track.sale({
      clickId: payment.metadata.dub_click_id,
      customerExternalId: payment.metadata.dub_external_id || payment.customer.customer_id,
      amount: payment.total_amount,
      currency: payment.currency,
      paymentProcessor: 'custom',
      invoiceId: payment.payment_id,
    });
  }
}