Create checkout session

import requests
import json

url = "https://api.example.com/api/v1/sessions"
headers = {
  "Content-Type": "application/json",
  "Idempotency-Key": "example_string",
  "Authorization": "Bearer YOUR_API_TOKEN (JWT)"
}
data = {
  "orderReference": "ORD-2024-001",
  "paymentMethod": "card",
  "currency": "AUD",
  "locale": "en_AU",
  "amount": {
    "total": 140.76,
    "shipping": 9.95,
    "tax": 11.81
  },
  "orderItems": [
    {
      "name": "Wireless Headphones",
      "sku": "WH-100",
      "quantity": 1,
      "unitPrice": 119
    }
  ],
  "customer": {
    "firstName": "Jane",
    "lastName": "Smith",
    "email": "jane.smith@example.com",
    "phone": "+61412345678",
    "billingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    },
    "shippingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    }
  },
  "shipping": {
    "type": "express",
    "method": "aus_post"
  },
  "additionalInformation": {
    "campaignId": "summer-sale-2024",
    "referralCode": "REF-ABC"
  },
  "redirectUrls": {
    "success": "https://merchant.example.com/checkout/success",
    "failure": "https://merchant.example.com/checkout/failure"
  }
}

response = requests.post(url, headers=headers, json=data)
print(response.json())

const response = await fetch("https://api.example.com/api/v1/sessions", {
  method: "POST",
  headers: {
  "Content-Type": "application/json",
  "Idempotency-Key": "example_string",
  "Authorization": "Bearer YOUR_API_TOKEN (JWT)"
},
  body: JSON.stringify({
  "orderReference": "ORD-2024-001",
  "paymentMethod": "card",
  "currency": "AUD",
  "locale": "en_AU",
  "amount": {
    "total": 140.76,
    "shipping": 9.95,
    "tax": 11.81
  },
  "orderItems": [
    {
      "name": "Wireless Headphones",
      "sku": "WH-100",
      "quantity": 1,
      "unitPrice": 119
    }
  ],
  "customer": {
    "firstName": "Jane",
    "lastName": "Smith",
    "email": "jane.smith@example.com",
    "phone": "+61412345678",
    "billingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    },
    "shippingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    }
  },
  "shipping": {
    "type": "express",
    "method": "aus_post"
  },
  "additionalInformation": {
    "campaignId": "summer-sale-2024",
    "referralCode": "REF-ABC"
  },
  "redirectUrls": {
    "success": "https://merchant.example.com/checkout/success",
    "failure": "https://merchant.example.com/checkout/failure"
  }
})
});

const data = await response.json();
console.log(data);

package main

import (
    "fmt"
    "net/http"
    "bytes"
    "encoding/json"
)

func main() {
    data := []byte(`{
  "orderReference": "ORD-2024-001",
  "paymentMethod": "card",
  "currency": "AUD",
  "locale": "en_AU",
  "amount": {
    "total": 140.76,
    "shipping": 9.95,
    "tax": 11.81
  },
  "orderItems": [
    {
      "name": "Wireless Headphones",
      "sku": "WH-100",
      "quantity": 1,
      "unitPrice": 119
    }
  ],
  "customer": {
    "firstName": "Jane",
    "lastName": "Smith",
    "email": "jane.smith@example.com",
    "phone": "+61412345678",
    "billingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    },
    "shippingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    }
  },
  "shipping": {
    "type": "express",
    "method": "aus_post"
  },
  "additionalInformation": {
    "campaignId": "summer-sale-2024",
    "referralCode": "REF-ABC"
  },
  "redirectUrls": {
    "success": "https://merchant.example.com/checkout/success",
    "failure": "https://merchant.example.com/checkout/failure"
  }
}`)

    req, err := http.NewRequest("POST", "https://api.example.com/api/v1/sessions", bytes.NewBuffer(data))
    if err != nil {
        panic(err)
    }

    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("Idempotency-Key", "example_string")
    req.Header.Set("Authorization", "Bearer YOUR_API_TOKEN (JWT)")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    fmt.Println("Response Status:", resp.Status)
}

require 'net/http'
require 'json'

uri = URI('https://api.example.com/api/v1/sessions')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request['Idempotency-Key'] = 'example_string'
request['Authorization'] = 'Bearer YOUR_API_TOKEN (JWT)'
request.body = '{
  "orderReference": "ORD-2024-001",
  "paymentMethod": "card",
  "currency": "AUD",
  "locale": "en_AU",
  "amount": {
    "total": 140.76,
    "shipping": 9.95,
    "tax": 11.81
  },
  "orderItems": [
    {
      "name": "Wireless Headphones",
      "sku": "WH-100",
      "quantity": 1,
      "unitPrice": 119
    }
  ],
  "customer": {
    "firstName": "Jane",
    "lastName": "Smith",
    "email": "jane.smith@example.com",
    "phone": "+61412345678",
    "billingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    },
    "shippingAddress": {
      "line1": "123 Collins Street",
      "line2": "Level 5",
      "city": "Melbourne",
      "state": "VIC",
      "postalCode": "3000",
      "country": "AU"
    }
  },
  "shipping": {
    "type": "express",
    "method": "aus_post"
  },
  "additionalInformation": {
    "campaignId": "summer-sale-2024",
    "referralCode": "REF-ABC"
  },
  "redirectUrls": {
    "success": "https://merchant.example.com/checkout/success",
    "failure": "https://merchant.example.com/checkout/failure"
  }
}'

response = http.request(request)
puts response.body

{
  "error": "Bad Request",
  "message": "Missing required header: Idempotency-Key",
  "statusCode": 400
}

{
  "error": "Bad Request",
  "message": [
    "amount.total does not match the sum of line items, shipping, and tax"
  ],
  "statusCode": 400
}

{
  "error": "Unauthorized",
  "message": "Authentication required. Please provide a valid API token",
  "code": 401
}

{
  "error": "Conflict",
  "message": "The request conflicts with the current state of the resource",
  "code": 409,
  "details": "Resource already exists"
}

{
  "message": "This idempotency key was already used with different request parameters",
  "statusCode": 422,
  "code": "IDEMPOTENCY_KEY_MISMATCH"
}

{
  "message": "No eligible providers found for the given request parameters",
  "statusCode": 422,
  "code": "NO_AVAILABLE_PROVIDER"
}

{
  "message": "Internal server error",
  "statusCode": 500
}

{
  "error": "Error",
  "message": "Service temporarily unavailable.",
  "code": 502
}

{
  "error": "Service Unavailable",
  "message": "The service is temporarily unavailable. Please try again later",
  "code": 503
}

{
  "error": "Error",
  "message": "Request timed out.",
  "code": 504
}