Integration Overview#

This documentation is also available as a PDF.

Dash Core is a fork of Bitcoin Core and shares many common functionalities. Key differences are found in existing JSON-RPC commands which have been customized to support unique functionalities such as InstantSend.

The Basics#

Dash is a Proof of Work network, and similar to Bitcoin, Dash has a mining network but uses a different block hashing algorithm. Dash serves as an improvement of Bitcoin's shortcomings by offering a robust solution for instant transactions, enhancing user privacy, and offering a self-sustainable decentralized governance model.

JSON-RPC Interface#

The majority of commands are unchanged from Bitcoin making integration into existing systems relatively straightforward. Note that the following commands have been modified to support InstantSend:

Block Hashing Algorithm#

Dash uses the X11 algorithm in place of SHA256 used in Bitcoin. It’s important to note, however, that this only affects the hashing of the block itself. All other internals utilize SHA256 hashes (transactions, merkle root, etc.), which allows for most existing libraries to work in the Dash ecosystem.

Special Transactions#

Dash Core v0.13.x introduced the concept of “Special Transactions”. Please see the Transaction Type Integration Guide for more information.

Special Transactions#

This documentation is also available as a PDF.

Dash 0.13.0 and higher implement DIP002 Special Transactions, which form a basis for new transaction types that provide on-chain metadata to assist various consensus mechanisms. The following special transaction types exist:

Release

إصدار

Type

Payload Size

Payload

Payload JSON

Transaction Purpose

v0.13.0

3

0

n/a

n/a

n/a

Standard Transaction

v0.13.0

3

1

<variable int>

<hex>

proRegTx

Masternode Registration

v0.13.0

3

2

<variable int>

<hex>

proUpServTx

Update Masternode Service

v0.13.0

3

3

<variable int>

<hex>

proUpRegTx

Update Masternode Operator

v0.13.0

3

4

<variable int>

<hex>

proUpRevTx

Masternode Revocation

v0.13.0

3

5

<variable int>

<hex>

cbTx

Masternode List Merkle Proof

v0.13.0

3

6

<variable int>

<hex>

qcTx

Quorum Commitment

Integration notes:

  1. DIP002 Special Transactions are a foundational component of Dash Core v0.13.0 and introduce a new Transaction Version and related “Payload” to the network.

  2. Integrated Systems must be able to serialize and deserialize these new Transaction Types to accurately encode and decode Raw Transaction data.

  3. From a backwards compatibility perspective, the 4 byte (32-bit) version field included in Legacy Transactions has been split into two fields: version and type (each consisting of 2 bytes).

  4. Refer to the Special Transactions section of the dash developer reference for additional detail on these data types, e.g. <variable int>.

  5. InstantSend status and Payload JSON (e.g. proRegTx) is included in the JSON-RPC response, please note that this data is not part of the calculated hash and is provided for convenience.

See the v0.13.0 transaction types integration documentation (PDF) for worked examples of each transaction type.

إرسال فوري#

This documentation is also available as a PDF.

InstantSend is a feature provided by the Dash network that allows for zero-confirmation transactions to be safely accepted and re-spent. The network attempts to lock the inputs of every valid transaction when it is broadcast to the network. Every secured transaction is included in a following block in accordance with standard blockchain principles.

InstantSend is enabled by the Masternode Network which comprises approximately 5,000 masternode servers. These nodes are differentiated from standard nodes by having proven ownership of 1,000 Dash, making the network highly resistant to Sybil attacks. Masternodes form Long-Living Masternode Quorums (LLMQs), which are responsible for providing near-instant certainty to the transaction participants that the transaction inputs cannot be respent, and that the transaction will be included in a following block instead of a conflicting transaction.

This concept works as an extension to Nakamoto Consensus. InstantSend enables transacted funds to be immediately and securely respent by the recipient, even before the transaction is included in a block.

تلقي معاملات الإرسال الفوري#

Receiving an InstantSend Transaction introduces two requirements:

  1. The ability to determine the “InstantSend Status” of a given transaction.

  2. The ability to adjust “Confirmation Status” independently of block confirmation.

InstantSend Status is typically determined through direct connection with the dash daemon, ZMQ notification, or through the usage of an external wallet notification script.

Direct Connection: InstantSend Status can be identified through direct connection with the Dash daemon using JSON-RPC protocol. The “instantlock” attribute of the JSON response reflects the status of the transaction and is included in the following commands:

ZMQ Notification: Whenever a transaction enters the mempool and whenever a transaction is locked in the mempool, ZMQ notifications can be broadcast by the node. A list of possible ZMQ notifications can be found here.

The following notifications are relevant for recognizing transactions and their corresponding instantlocks:

  • zmqpubhashtx

  • zmqpubhashtxlock

  • zmqpubrawtx

  • zmqpubrawtxlock

Wallet Notification: The Dash Core Daemon can be configured to execute an external script whenever an InstantSend transaction relating to that wallet is observed. This is configured by adding the following line to the dash.conf file:

instantsendnotify=/path/to/concurrent/safe/handler %s

This is typically used with a wallet that has been populated with watch-only addresses.

البث المعاملات للإرسال الفوري#

Since Dash v0.14.0 established LLMQs on the Dash network, quorums will now attempt to lock every valid transaction by default without any additional fee or action by the sending wallet or user. A transaction is eligible for InstantSend when each of its inputs is considered confirmed. This is the case when at least one of the following circumstances is true:

  • the previous transaction referred to by the input is confirmed with 6 blocks

  • the previous transaction is confirmed through an older InstantSend lock

  • the block containing the previous transaction is ChainLocked

When checking the previous transaction for an InstantSend lock, it is important to do this on mempool (non-mined) transactions. This allows chained InstantSend locking.

موارد إضافية#

توفر الموارد التالية معلومات إضافية حول الإرسال الفوري وتهدف إلى المساعدة على توفير فهم أكثر اكتمالاً للتكنولوجيات الأساسية.

خدمات API#

توجد عدة خدمات API لتسهيل التكامل السريع والسهل مع شبكة داش للخدمات بما في ذلك:

  • بث المعاملات

  • معدل التحويل

  • تحويل العملة

  • جيل الفاتورة

يتم استخدام خدمات API بشكل نموذجي للتخلص من متطلبات تشغيل البنية الأساسية الخاصة بك لدعم تفاعلات بلوكشين. يتضمن ذلك آليات مثل:

  • تشكيل ونقل المعاملات إلى الشبكة.

  • توليد العناوين باستخدام HD محافظ.

  • معالجة الدفع باستخدام WebHooks.

هناك مجموعة متنوعة من الخيارات لدعم هذه الطرق ، مع الاختلاف الرئيسي في كون نموذج التسعير مضمنًا وميزات مدعومة. تحاول القائمة التالية لمقدمي واجهة برمجة التطبيقات تحديد هذه الميزات / الاختلافات الرئيسية كما تتضمن أيضًا رابطًا للوثائق ذات الصلة.

نظرة#

../../../_images/insight.png

dashevo/insight-api

The open-source Insight REST API provides you with a convenient, powerful and simple way to read data from the Dash network and build your own services with it. A practical guide to getting started with the Insight API and Insight UI block explorer is available here.

  • الميزات: بث المعاملات ، إخطارات WebSocket.

  • نموذج التسعير: مجاني / مفتوح المصدر

  • الوتيقة:dashevo/insight-api

BlockCypher#

../../../_images/blockcypher.png

https://www.blockcypher.com

BlockCypher هو واجهة برمجة تطبيقات بسيطة ومعظمها RESTful JSON للتفاعل مع بلوكشين ، يمكن الوصول إليها عبر HTTP أو HTTPS من نطاق api.blockcypher.com.

  • الميزات: بث المعاملات ، HD محفظة / توليد عناوين ، WebSocket و WebHook Callbacks بالإضافة إلى إعادة توجيه الدفع. BlockCypher لا يتعامل مع مفاتيح خاصة.

  • Pricing Model: Per API Call, 5000 Requests -> $85.00 per month (https://accounts.blockcypher.com)

  • الوتيقة:https://www.blockcypher.com/dev/dash/

BitGo#

../../../_images/bitgo.png

https://www.bitgo.com

BitGo provides a simple and robust RESTful API and client SDK to integrate digital currency wallets with your application. Support for Dash InstantSend is available.

  • Features: Multi-Signature HD Wallets, Wallet Operations, WebSocket and WebHook Notifications, Custody Solutions

  • Pricing Model: Per API Call

  • Documentation: https://app.bitgo.com/docs/

ChainRider#

../../../_images/chainrider.png

https://www.chainrider.io

ChainRider هي خدمة سحابة توفر مجموعة من واجهات برمجة التطبيقات REST لإدارة واستكشاف العملة الرقمية.

  • الميزات: استعلامات بلوكشين ، إخطارات الأحداث ، بث المعاملات ، معالجة الدفع ، إلخ.

  • نموذج التسعير: إصدار تجريبي مجاني والدفع لكل مكالمة API

  • Documentation: https://www.chainrider.io/docs/dash/

Blockmove#

../../../_images/blockmove.png

https://blockmove.io

Сryptocurrency wallet, merchant & API provider. Blockmove is a simple and easy way to start accepting payments in cryptocurrency.

  • Features: Non-custodial wallet, HD Wallet, High anonymity, Low fees. Private keys are not stored and are available only to the user.

  • Pricing Model: API - 0.3% for withdrawal transactions. Merchant - 1 year free, then $49/month

  • Documentation: https://docs.blockmove.io

NOWNodes#

../../../_images/nownodes.png

https://nownodes.io/

NOWNodes provides simple, fast, and secure RPC access to Dash-based full nodes. The low latency and high performance is of great use to researchers and businesses such as crypto miners or hardware wallet providers.

CoinPayments#

../../../_images/coinpayments.png

https://www.coinpayments.net

CoinPayments is an integrated payment gateway for cryptocurrencies such as Dash. Shopping cart plugins are available for all popular webcarts used today. CoinPayments can help you set up a new checkout or integrate with your pre-existing checkout.

  • Features: Invoicing, Exchange Rates, WebHook Callbacks. CoinPayments holds Private Keys on their server allowing merchants to withdraw funds in Cryptocurrency or convert to fiat.

  • التكاملات: aMember Pro، Arastta، Blesta، BoxBilling، Drupal، Ecwid، Hikashop، Magento، OpenCart، OSCommerce، PrestaShop، Tomato Cart، WooCommerce، Ubercart، XCart، ZenCart

  • نموذج التسعير: 0.5٪ رسوم المعالجة (https://www.coinpayments.net/help-fees)

  • الوتيقة:https://www.coinpayments.net/apidoc

موارد SDK#

SDKs (Software Development Kits) are used to accelerate the design and development of a product for the Dash Network. These resources can either be used to interface with an API provider or for the creation of standalone applications by forming transactions and/or performing various wallet functions.

دليل مطورين داش#

../../../_images/dash-logo.png

https://dashcore.readme.io/

The Dash Developer Portal aims to provide the information you need to understand Dash and start building Dash-based applications. To make the best use of this documentation, you may want to install the current version of Dash Core and Dash Platform, either from source, from a pre-compiled executable or from Docker Hub.

NodeJS/JavaScript: Dashcore#

../../../_images/bitcore.png

https://bitcore.io

Dashcore is a fork of Bitcore and operates as a full Dash node — your apps run directly on the peer-to-peer network. For wallet application development, additional indexes have been added into Dash for querying address balances, transaction history, and unspent outputs.

NodeJS/JavaScript: DashJS#

DashJS allows you to transact on L1 or fetch/register documents on L2 within a single library, including management and signing of your documents.

PHP: Bitcoin-PHP#

Bit-Wasp/bitcoin-php

Bitcoin-PHP is an implementation of Bitcoin with support for Dash using mostly pure PHP.

Python: PyCoin#

richardkiss/pycoin

PyCoin is an implementation of a bunch of utility routines that may be useful when dealing with Bitcoin and Dash. It has been tested with Python 2.7, 3.6 and 3.7.

Java: DashJ#

../../../_images/bitcoinj.png

dashevo/dashj

داش ج هي مكتبة للعمل مع بروتوكول داش. يمكنه الاحتفاظ بمحفظة ، إرسال / استقبال المعاملات (بما في ذلك الإرسال الفوري) دون الحاجة إلى نسخة محلية من داش كور ، ولديه العديد من الميزات المتقدمة الأخرى. يتم تنفيذه في Java ولكن يمكن استخدامه من أي لغة متوافقة مع JVM: يتم تضمين أمثلة في Python و JavaScript.

Objective-C: Dash-Sync#

../../../_images/dash-logo.png

dashevo/dashsync-iOS

Dash-Sync is an Objective-C Dash blockchain framework for iOS. It implements all most relevant Bitcoin Improvement Proposals (BIPs) and Dash Improvement Proposals (DIPs).

.NET: NBitcoin#

../../../_images/dash-logo.png

MetacoSA/NBitcoin

NBitcoin is the most complete Bitcoin library for the .NET platform and has been patched to include support for Dash. It implements all most relevant Bitcoin Improvement Proposals (BIPs) and Dash Improvement Proposals (DIPs). It also provides low level access to Dash primitives so you can easily build your application on top of it.

BlockCypher#

../../../_images/blockcypher.png

https://www.blockcypher.com

يوفر BlockCypher أيضًا SDKs للعميل.

آلات البيع#

Community member moocowmoo has released code to help merchants build their own vending machine and set it up to receive Dash InstantSend payments. The Dashvend software can also be used to create any sort of payment system, including point-of-sale systems that can accept InstantSend payments.

مؤشرات السعر#

You can add a simple price ticker widget to your website using the simple code snippet generator from CoinGecko.

تتوفر أدوات مماثلة مع تصاميم مختلفة من CoinLib, WorldCoinIndex و Cryptonator, بينما تتوفر واجهة برمجة التطبيقات التي توفر معلومات مماثلة من داش سنترال.

الماسح الضوئي#

Many wallets can generate QR codes that are scannable to simplify entry of the Dash address. Printing these codes or posting the on your website makes it easy to receive payment and tips in Dash, both online and offline.

  • In Dash Core, go to the Receive tab, generate an address if necessary, and double-click it to display a QR code. Right-click on the QR code and select Save Image to save a PNG file.

  • في داش في الأندرويد ، انقر على طلب عملات ثم انقر على رمز QR لعرض صورة أكبر. يمكنك قطة الشاشة هذه لحفظ الصورة.

  • في داش في الأبفون ، مرّر سريعًا إلى اليسار لعرض شاشة استقبال داش. سيظهر رمز الاستجابة السريعة والعنوان. يمكنك قطة الشاشة هذه لحفظ الصورة.

  • لإنشاء رمز الاستجابة السريعة من أي عنوان داش ، تفضل بزيارة هنا وببساطة قم بلصق عنوان الشرطة خاصتك لإنشاء صورة.