curl --request POST \
  --url https://api.digitalreceiptprotocol.org/api/v1/receipts/encrypt \
  --header 'Content-Type: application/json' \
  --data '
{
  "version": "1.0",
  "receiptId": "rcpt_abc123def456",
  "merchantId": "merch_kitchenmart_001",
  "merchantName": "KitchenMart",
  "merchantStreet": "456 Commerce Ave",
  "merchantCity": "San Francisco",
  "merchantState": "CA",
  "merchantPostalCode": "94103",
  "merchantCountry": "US",
  "merchantTaxId": "98-7654321",
  "merchantContactEmail": "[email protected]",
  "transactionId": "txn_550e8400e29b41d4a716",
  "transactionDate": "2025-12-18T10:30:00Z",
  "transactionTimezone": "America/Los_Angeles",
  "paymentMethod": "card",
  "cardLast4": "4242",
  "cardBrand": "visa",
  "currency": "USD",
  "subtotal": 10997,
  "taxAmount": 962,
  "totalAmount": 11959,
  "items": [
    {
      "lineItemId": "item_001",
      "name": "Stainless Steel Mixing Bowl Set",
      "quantity": 1,
      "unitPrice": 2999,
      "totalPrice": 2999,
      "category": "Kitchen Essentials",
      "taxes": [
        {
          "name": "Sales Tax",
          "rate": 0.0875,
          "amount": 262
        }
      ]
    },
    {
      "lineItemId": "item_002",
      "name": "Non-Stick Frying Pan",
      "quantity": 2,
      "unitPrice": 3999,
      "totalPrice": 7998,
      "category": "Cookware",
      "taxes": [
        {
          "name": "Sales Tax",
          "rate": 0.0875,
          "amount": 700
        }
      ]
    }
  ],
  "mockItems": false,
  "recipientHashedPan": "5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8"
}
'

import requests

url = "https://api.digitalreceiptprotocol.org/api/v1/receipts/encrypt"

payload = {
    "version": "1.0",
    "receiptId": "rcpt_abc123def456",
    "merchantId": "merch_kitchenmart_001",
    "merchantName": "KitchenMart",
    "merchantStreet": "456 Commerce Ave",
    "merchantCity": "San Francisco",
    "merchantState": "CA",
    "merchantPostalCode": "94103",
    "merchantCountry": "US",
    "merchantTaxId": "98-7654321",
    "merchantContactEmail": "[email protected]",
    "transactionId": "txn_550e8400e29b41d4a716",
    "transactionDate": "2025-12-18T10:30:00Z",
    "transactionTimezone": "America/Los_Angeles",
    "paymentMethod": "card",
    "cardLast4": "4242",
    "cardBrand": "visa",
    "currency": "USD",
    "subtotal": 10997,
    "taxAmount": 962,
    "totalAmount": 11959,
    "items": [
        {
            "lineItemId": "item_001",
            "name": "Stainless Steel Mixing Bowl Set",
            "quantity": 1,
            "unitPrice": 2999,
            "totalPrice": 2999,
            "category": "Kitchen Essentials",
            "taxes": [
                {
                    "name": "Sales Tax",
                    "rate": 0.0875,
                    "amount": 262
                }
            ]
        },
        {
            "lineItemId": "item_002",
            "name": "Non-Stick Frying Pan",
            "quantity": 2,
            "unitPrice": 3999,
            "totalPrice": 7998,
            "category": "Cookware",
            "taxes": [
                {
                    "name": "Sales Tax",
                    "rate": 0.0875,
                    "amount": 700
                }
            ]
        }
    ],
    "mockItems": False,
    "recipientHashedPan": "5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    version: '1.0',
    receiptId: 'rcpt_abc123def456',
    merchantId: 'merch_kitchenmart_001',
    merchantName: 'KitchenMart',
    merchantStreet: '456 Commerce Ave',
    merchantCity: 'San Francisco',
    merchantState: 'CA',
    merchantPostalCode: '94103',
    merchantCountry: 'US',
    merchantTaxId: '98-7654321',
    merchantContactEmail: '[email protected]',
    transactionId: 'txn_550e8400e29b41d4a716',
    transactionDate: '2025-12-18T10:30:00Z',
    transactionTimezone: 'America/Los_Angeles',
    paymentMethod: 'card',
    cardLast4: '4242',
    cardBrand: 'visa',
    currency: 'USD',
    subtotal: 10997,
    taxAmount: 962,
    totalAmount: 11959,
    items: [
      {
        lineItemId: 'item_001',
        name: 'Stainless Steel Mixing Bowl Set',
        quantity: 1,
        unitPrice: 2999,
        totalPrice: 2999,
        category: 'Kitchen Essentials',
        taxes: [{name: 'Sales Tax', rate: 0.0875, amount: 262}]
      },
      {
        lineItemId: 'item_002',
        name: 'Non-Stick Frying Pan',
        quantity: 2,
        unitPrice: 3999,
        totalPrice: 7998,
        category: 'Cookware',
        taxes: [{name: 'Sales Tax', rate: 0.0875, amount: 700}]
      }
    ],
    mockItems: false,
    recipientHashedPan: '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8'
  })
};

fetch('https://api.digitalreceiptprotocol.org/api/v1/receipts/encrypt', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.digitalreceiptprotocol.org/api/v1/receipts/encrypt",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'version' => '1.0',
    'receiptId' => 'rcpt_abc123def456',
    'merchantId' => 'merch_kitchenmart_001',
    'merchantName' => 'KitchenMart',
    'merchantStreet' => '456 Commerce Ave',
    'merchantCity' => 'San Francisco',
    'merchantState' => 'CA',
    'merchantPostalCode' => '94103',
    'merchantCountry' => 'US',
    'merchantTaxId' => '98-7654321',
    'merchantContactEmail' => '[email protected]',
    'transactionId' => 'txn_550e8400e29b41d4a716',
    'transactionDate' => '2025-12-18T10:30:00Z',
    'transactionTimezone' => 'America/Los_Angeles',
    'paymentMethod' => 'card',
    'cardLast4' => '4242',
    'cardBrand' => 'visa',
    'currency' => 'USD',
    'subtotal' => 10997,
    'taxAmount' => 962,
    'totalAmount' => 11959,
    'items' => [
        [
                'lineItemId' => 'item_001',
                'name' => 'Stainless Steel Mixing Bowl Set',
                'quantity' => 1,
                'unitPrice' => 2999,
                'totalPrice' => 2999,
                'category' => 'Kitchen Essentials',
                'taxes' => [
                                [
                                                                'name' => 'Sales Tax',
                                                                'rate' => 0.0875,
                                                                'amount' => 262
                                ]
                ]
        ],
        [
                'lineItemId' => 'item_002',
                'name' => 'Non-Stick Frying Pan',
                'quantity' => 2,
                'unitPrice' => 3999,
                'totalPrice' => 7998,
                'category' => 'Cookware',
                'taxes' => [
                                [
                                                                'name' => 'Sales Tax',
                                                                'rate' => 0.0875,
                                                                'amount' => 700
                                ]
                ]
        ]
    ],
    'mockItems' => false,
    'recipientHashedPan' => '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.digitalreceiptprotocol.org/api/v1/receipts/encrypt"

	payload := strings.NewReader("{\n  \"version\": \"1.0\",\n  \"receiptId\": \"rcpt_abc123def456\",\n  \"merchantId\": \"merch_kitchenmart_001\",\n  \"merchantName\": \"KitchenMart\",\n  \"merchantStreet\": \"456 Commerce Ave\",\n  \"merchantCity\": \"San Francisco\",\n  \"merchantState\": \"CA\",\n  \"merchantPostalCode\": \"94103\",\n  \"merchantCountry\": \"US\",\n  \"merchantTaxId\": \"98-7654321\",\n  \"merchantContactEmail\": \"[email protected]\",\n  \"transactionId\": \"txn_550e8400e29b41d4a716\",\n  \"transactionDate\": \"2025-12-18T10:30:00Z\",\n  \"transactionTimezone\": \"America/Los_Angeles\",\n  \"paymentMethod\": \"card\",\n  \"cardLast4\": \"4242\",\n  \"cardBrand\": \"visa\",\n  \"currency\": \"USD\",\n  \"subtotal\": 10997,\n  \"taxAmount\": 962,\n  \"totalAmount\": 11959,\n  \"items\": [\n    {\n      \"lineItemId\": \"item_001\",\n      \"name\": \"Stainless Steel Mixing Bowl Set\",\n      \"quantity\": 1,\n      \"unitPrice\": 2999,\n      \"totalPrice\": 2999,\n      \"category\": \"Kitchen Essentials\",\n      \"taxes\": [\n        {\n          \"name\": \"Sales Tax\",\n          \"rate\": 0.0875,\n          \"amount\": 262\n        }\n      ]\n    },\n    {\n      \"lineItemId\": \"item_002\",\n      \"name\": \"Non-Stick Frying Pan\",\n      \"quantity\": 2,\n      \"unitPrice\": 3999,\n      \"totalPrice\": 7998,\n      \"category\": \"Cookware\",\n      \"taxes\": [\n        {\n          \"name\": \"Sales Tax\",\n          \"rate\": 0.0875,\n          \"amount\": 700\n        }\n      ]\n    }\n  ],\n  \"mockItems\": false,\n  \"recipientHashedPan\": \"5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.digitalreceiptprotocol.org/api/v1/receipts/encrypt")
  .header("Content-Type", "application/json")
  .body("{\n  \"version\": \"1.0\",\n  \"receiptId\": \"rcpt_abc123def456\",\n  \"merchantId\": \"merch_kitchenmart_001\",\n  \"merchantName\": \"KitchenMart\",\n  \"merchantStreet\": \"456 Commerce Ave\",\n  \"merchantCity\": \"San Francisco\",\n  \"merchantState\": \"CA\",\n  \"merchantPostalCode\": \"94103\",\n  \"merchantCountry\": \"US\",\n  \"merchantTaxId\": \"98-7654321\",\n  \"merchantContactEmail\": \"[email protected]\",\n  \"transactionId\": \"txn_550e8400e29b41d4a716\",\n  \"transactionDate\": \"2025-12-18T10:30:00Z\",\n  \"transactionTimezone\": \"America/Los_Angeles\",\n  \"paymentMethod\": \"card\",\n  \"cardLast4\": \"4242\",\n  \"cardBrand\": \"visa\",\n  \"currency\": \"USD\",\n  \"subtotal\": 10997,\n  \"taxAmount\": 962,\n  \"totalAmount\": 11959,\n  \"items\": [\n    {\n      \"lineItemId\": \"item_001\",\n      \"name\": \"Stainless Steel Mixing Bowl Set\",\n      \"quantity\": 1,\n      \"unitPrice\": 2999,\n      \"totalPrice\": 2999,\n      \"category\": \"Kitchen Essentials\",\n      \"taxes\": [\n        {\n          \"name\": \"Sales Tax\",\n          \"rate\": 0.0875,\n          \"amount\": 262\n        }\n      ]\n    },\n    {\n      \"lineItemId\": \"item_002\",\n      \"name\": \"Non-Stick Frying Pan\",\n      \"quantity\": 2,\n      \"unitPrice\": 3999,\n      \"totalPrice\": 7998,\n      \"category\": \"Cookware\",\n      \"taxes\": [\n        {\n          \"name\": \"Sales Tax\",\n          \"rate\": 0.0875,\n          \"amount\": 700\n        }\n      ]\n    }\n  ],\n  \"mockItems\": false,\n  \"recipientHashedPan\": \"5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.digitalreceiptprotocol.org/api/v1/receipts/encrypt")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"version\": \"1.0\",\n  \"receiptId\": \"rcpt_abc123def456\",\n  \"merchantId\": \"merch_kitchenmart_001\",\n  \"merchantName\": \"KitchenMart\",\n  \"merchantStreet\": \"456 Commerce Ave\",\n  \"merchantCity\": \"San Francisco\",\n  \"merchantState\": \"CA\",\n  \"merchantPostalCode\": \"94103\",\n  \"merchantCountry\": \"US\",\n  \"merchantTaxId\": \"98-7654321\",\n  \"merchantContactEmail\": \"[email protected]\",\n  \"transactionId\": \"txn_550e8400e29b41d4a716\",\n  \"transactionDate\": \"2025-12-18T10:30:00Z\",\n  \"transactionTimezone\": \"America/Los_Angeles\",\n  \"paymentMethod\": \"card\",\n  \"cardLast4\": \"4242\",\n  \"cardBrand\": \"visa\",\n  \"currency\": \"USD\",\n  \"subtotal\": 10997,\n  \"taxAmount\": 962,\n  \"totalAmount\": 11959,\n  \"items\": [\n    {\n      \"lineItemId\": \"item_001\",\n      \"name\": \"Stainless Steel Mixing Bowl Set\",\n      \"quantity\": 1,\n      \"unitPrice\": 2999,\n      \"totalPrice\": 2999,\n      \"category\": \"Kitchen Essentials\",\n      \"taxes\": [\n        {\n          \"name\": \"Sales Tax\",\n          \"rate\": 0.0875,\n          \"amount\": 262\n        }\n      ]\n    },\n    {\n      \"lineItemId\": \"item_002\",\n      \"name\": \"Non-Stick Frying Pan\",\n      \"quantity\": 2,\n      \"unitPrice\": 3999,\n      \"totalPrice\": 7998,\n      \"category\": \"Cookware\",\n      \"taxes\": [\n        {\n          \"name\": \"Sales Tax\",\n          \"rate\": 0.0875,\n          \"amount\": 700\n        }\n      ]\n    }\n  ],\n  \"mockItems\": false,\n  \"recipientHashedPan\": \"5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8\"\n}"

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

{
  "success": true,
  "data": {
    "version": "1.0",
    "receiptId": "rcpt_abc123def456",
    "keyId": "a1b2c3d4-e5f6-4a7b-8c9d-0e1f2a3b4c5d",
    "keyBundle": {
      "encryptedAesKey": "base64_encrypted_aes_key_here...",
      "keyId": "a1b2c3d4-e5f6-4a7b-8c9d-0e1f2a3b4c5d",
      "algorithm": "RSA-OAEP-256"
    },
    "ciphertext": "base64_encrypted_receipt_data_here...",
    "iv": "base64_initialization_vector...",
    "authTag": "base64_authentication_tag...",
    "merchantId": "merch_kitchenmart_001",
    "transactionId": "txn_550e8400e29b41d4a716",
    "createdAt": "2025-12-18T10:30:00Z",
    "isEscrowed": false
  }
}

{
  "success": false,
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": {}
  }
}

{
  "success": false,
  "error": {
    "code": "ENCRYPTION_ERROR",
    "message": "Failed to encrypt receipt"
  }
}