Skip to main content

​
DRP SDKs & Libraries

Official SDKs make it easy to integrate DRP into your application. All SDKs are open-source, actively maintained, and provide type-safe interfaces to the DRP API.

​
Available SDKs

JavaScript/Node.js

For web applications, Node.js servers, and React Native apps
npm install @drp/sdk

Python

For Django, Flask, FastAPI, and Python-based POS systems
pip install drp-sdk

Go

For high-performance backends and microservices
go get github.com/digitalreceiptprotocol/drp-go

PHP

For WordPress, Laravel, and PHP-based e-commerce platforms
composer require drp/sdk

iOS (Swift)

Native SDK with Secure Enclave integration for banking appsSwift Package Manager, CocoaPods

Android (Kotlin)

Native SDK with KeyStore integration for banking appsGradle dependency

​
SDK Features

All official DRPs SDKs provide:

​
Core Functionality

  • [Yes] Receipt encryption/decryption - RSA-2048-OAEP with proper padding
  • [Yes] Cryptographic signing - RSA-SHA256 signature generation and verification
  • [Yes] Key management - Secure key storage and rotation
  • [Yes] API client - Type-safe HTTP client for all DRP endpoints
  • [Yes] Error handling - Structured exceptions with retry logic
  • [Yes] Rate limiting - Built-in rate limit handling and backoff

​
Advanced Features

  • Hardware security - HSM integration (server SDKs), Secure Enclave/KeyStore (mobile SDKs)
  • JSON-LD support - Schema.org receipt format validation
  • Automatic retries - Configurable exponential backoff
  • Logging & metrics - Structured logging and telemetry
  • Testing utilities - Mock clients and test helpers
  • TypeScript/Type hints - Full type safety where applicable

​
Quick Start

​
Server-Side (Merchant Integration)

const DRP = require('@drp/sdk');

const client = new DRP.Client({
  apiKey: process.env.DRP_API_KEY,
  issuerDomain: 'issuer-bank.com',
  environment: 'production'
});

// Get customer's public key
const keyData = await client.publicKeys.get(cardToken);

// Encrypt and send receipt
const receipt = await client.receipts.send({
  receipt: receiptData,
  customerPublicKey: keyData.public_key,
  transactionId: txnId
});

​
Client-Side (Banking App)

import DRPKit

let client = DRPClient(
    oauthToken: userSession.accessToken,
    issuerDomain: "issuer-bank.com"
)

// Fetch encrypted receipts
let receipts = try await client.receipts.list(
    startDate: startDate,
    endDate: endDate
)

// Decrypt with Secure Enclave
for receipt in receipts {
    let decrypted = try await SecureEnclaveManager.shared.decrypt(
        receipt.encryptedReceipt,
        keyID: receipt.encryptionKeyID
    )
    print("Receipt from: \(receipt.merchantName)")
}

​
Installation Guides

Select your platform for detailed installation and setup instructions:

JavaScript/Node.js

npm, yarn, or pnpm

Python

pip or poetry

Go

go get or go modules

PHP

Composer

iOS

SPM, CocoaPods, Carthage

Android

Gradle

​
SDK Comparison

FeatureJavaScriptPythonGoPHPiOSAndroid
Merchant API[Yes][Yes][Yes][Yes][No][No]
User API[Yes][Yes][Yes][Yes][Yes][Yes]
Receipt Encryption[Yes][Yes][Yes][Yes][Yes][Yes]
Receipt Decryption[Yes][Yes][Yes][Yes][Yes][Yes]
HSM Support[Yes][Yes][Yes][Partial]N/AN/A
Secure EnclaveN/AN/AN/AN/A[Yes]N/A
KeyStoreN/AN/AN/AN/AN/A[Yes]
Type Safety[Yes] (TS)[Yes][Yes][No][Yes][Yes]
Async/Await[Yes][Yes][Yes][Yes][Yes][Yes]
Webhook Helpers[Yes][Yes][Yes][Yes]N/AN/A
[Partial] = Partial support or requires additional setup

​
Community SDKs

Community-maintained SDKs for additional languages:

Ruby

For Ruby on Rails and Sinatragem install drp-sdk

.NET/C#

For ASP.NET and .NET applicationsdotnet add package DRP.SDK

Rust

For high-performance Rust applicationscargo add drp-sdk

Java

For Spring Boot and enterprise JavaMaven/Gradle dependency
Community SDKs are maintained by third-party contributors. While we encourage their use, official support is limited. Consider contributing if you’d like to help maintain these SDKs!

​
SDK Support

GitHub Issues

Report bugs and request features on the respective SDK repositories

Developer Support

Email our team for integration help

Community Forum

Ask questions and share knowledge

SDK Documentation

Detailed guides for each SDK

​
Contributing

All official SDKs are open-source under the MIT license. We welcome contributions!

​
How to Contribute

  1. Fork the repository for your language
  2. Create a feature branch
  3. Add tests for new functionality
  4. Submit a pull request
See individual SDK repositories for contribution guidelines.

​
Version Compatibility

SDK VersionDRP API VersionMinimum Language Version
JavaScript 1.xv1Node.js 16+
Python 1.xv1Python 3.8+
Go 1.xv1Go 1.19+
PHP 1.xv1PHP 8.0+
iOS 1.xv1iOS 13+, Swift 5.5+
Android 1.xv1Android 8+ (API 26+), Kotlin 1.7+

​
Next Steps

1

Choose Your SDK

Select the SDK for your platform/language
2

Install & Configure

Follow the installation guide for your chosen SDK
3

Review Examples

Check code examples and sample applications
4

Test Integration

Use sandbox environment to test your implementation
5

Go Live

Deploy to production with confidence