Checkout plug & play.

import { SignJWT } from 'jose';
const secret = new TextEncoder().encode(process.env.ORDER_SECRET);

const token = await new SignJWT({
  store_id: 'MINHA_LOJA',
  seller_id: 'seller_123', // opcional: habilita o split
  external_id: 'PED_1042',
  idempotency_key: 'PED_1042_v1',
  customer: { email: '[email protected]', name: 'Ana Lima' },
  order: { amount: 15000, items: [{ desc: 'Plano anual', qty: 1, price: 15000 }] },
})
  .setProtectedHeader({ alg: 'HS256' })
  .setExpirationTime('30m')
  .sign(secret);

redirect(`https://checkout.suaempresa.com/pay?session_token=${token}`);

import os, time
import jwt  # PyJWT

token = jwt.encode({
    "store_id": "MINHA_LOJA",
    "seller_id": "seller_123",  # opcional: habilita o split
    "external_id": "PED_1042",
    "idempotency_key": "PED_1042_v1",
    "customer": {"email": "[email protected]", "name": "Ana Lima"},
    "order": {"amount": 15000, "items": [{"desc": "Plano anual", "qty": 1, "price": 15000}]},
    "exp": int(time.time()) + 30 * 60,
}, os.environ["ORDER_SECRET"], algorithm="HS256")

return redirect(f"https://checkout.suaempresa.com/pay?session_token={token}")

// github.com/golang-jwt/jwt/v5
token, err := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
	"store_id":        "MINHA_LOJA",
	"seller_id":       "seller_123", // opcional: habilita o split
	"external_id":     "PED_1042",
	"idempotency_key": "PED_1042_v1",
	"customer":        map[string]any{"email": "[email protected]", "name": "Ana Lima"},
	"order": map[string]any{"amount": 15000, "items": []map[string]any{
		{"desc": "Plano anual", "qty": 1, "price": 15000},
	}},
	"exp": time.Now().Add(30 * time.Minute).Unix(),
}).SignedString([]byte(os.Getenv("ORDER_SECRET")))
if err != nil { return err }

http.Redirect(w, r, "https://checkout.suaempresa.com/pay?session_token="+token, http.StatusSeeOther)

use Firebase\JWT\JWT;

$token = JWT::encode([
    'store_id'        => 'MINHA_LOJA',
    'seller_id'       => 'seller_123', // opcional: habilita o split
    'external_id'     => 'PED_1042',
    'idempotency_key' => 'PED_1042_v1',
    'customer'        => ['email' => '[email protected]', 'name' => 'Ana Lima'],
    'order'           => ['amount' => 15000, 'items' => [
        ['desc' => 'Plano anual', 'qty' => 1, 'price' => 15000],
    ]],
    'exp'             => time() + 30 * 60,
], getenv('ORDER_SECRET'), 'HS256');

header("Location: https://checkout.suaempresa.com/pay?session_token=$token");

require "jwt"

token = JWT.encode({
  store_id: "MINHA_LOJA",
  seller_id: "seller_123", # opcional: habilita o split
  external_id: "PED_1042",
  idempotency_key: "PED_1042_v1",
  customer: { email: "[email protected]", name: "Ana Lima" },
  order: { amount: 15000, items: [{ desc: "Plano anual", qty: 1, price: 15000 }] },
  exp: Time.now.to_i + 30 * 60,
}, ENV.fetch("ORDER_SECRET"), "HS256")

redirect_to "https://checkout.suaempresa.com/pay?session_token=#{token}"