dashsight.js

SDK for Dash's flavor of the Insight API

Install

npm install --save dashsight

Usage

Node.js and WebPack

"use strict";

require("dotenv").config({ path: ".env" });

let dashsightBaseUrl =
  process.env.DASHSIGHT_BASE_URL ||
  "https://dashsight.dashincubator.dev/insight-api";
let dashsocketBaseUrl =
  process.env.DASHSOCKET_BASE_URL || "https://insight.dash.org/socket.io";
let insightBaseUrl =
  process.env.INSIGHT_BASE_URL || "https://insight.dash.org/insight-api";

let dashsight = require("dashsight").create({
  dashsightBaseUrl: dashsightBaseUrl,
  dashsocketBaseUrl: dashsocketBaseUrl,
  insightBaseUrl: insightBaseUrl,
});

dashsight.getInstantBalance(address).then(function (info) {
  console.info(`Current balance is: Đ${info.balance}`);
});

Browser

<script src="https://unpkg.com/[email protected]/dashsight.js"></script>
<script src="https://unpkg.com/[email protected]/dashsocket.js"></script>

(async function () {
  let dashsight = window.DashSight.create({
    dashsightBaseUrl: "https://dashsight.dashincubator.dev/insight-api",
    dashsocketBaseUrl: "https://insight.dash.org/socket.io",
    insightBaseUrl: "https://insight.dash.org/insight-api",
  });

  // ...

  await window.DashSocket.listen(
    "https://insight.dash.org/socket.io",
    function finder(evname, data) {
      console.log(evname, data);
    },
    { debug: true },
  );
})();

CLI

You can also use a number of debug commands:

npx -p dashsight dashsight-balance <addr1> [addr2 ...] [--json]
npx -p dashsight dashsight-instantsend <raw-tx-hex> [--json]
npx -p dashsight dashsight-tx <txid1> [txid2 ...] [--json]
npx -p dashsight dashsight-txs <addr1> [addr2 ...] [--json]
npx -p dashsight dashsight-utxos <addr1> [addr2 ...] [--json]

There some curated addresses and txids in ./examples/.

API

| DashSight.create({ dashsightBaseUrl, dashsocketBaseUrl }) | | ----------------------------------------------------------- | | dashsight.getInstantBalance(addrStr) | | dashsight.getTx(txIdHex) | | dashsight.getTxs(addrStr, maxPages) | | dashsight.getUtxos(addrStr) | | dashsight.instantSend(txHex) |

DashSight.create({ dashsightBaseUrl, dashsocketBaseUrl })

Creates an instance of the insight sdk bound to the given base urls.

let DashSight = require("dashsight");

let dashsight = DashSight.create({
  dashsightBaseUrl: "https://dashsight.dashincubator.dev/insight-api",
  dashsocketBaseUrl: "https://insight.dash.org/socket.io",
  insightBaseUrl: "https://insight.dash.org/insight-api",
});

Note: There are no default base URLs (this is supposed to be used in a decentralized fashion, after all), but the ones given above are a good starting point if you don't have your own.

dashsight.getBalance(address)

Do not use. Use dashsight.getInstantBalance(address) instead.

Does not give accurate balances. Provided for completeness / compatibility only.

dashsight.getInstantBalance(addr)

Takes a normal payment address, gives back the instantaneous balance (reflects instant send TXs).

// Base58Check-encoded Pay to Pubkey Hash (p2pkh)
let addr = `Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx`;

let info = await dashsight.getInstantBalance(addr);

console.log(info);

Example output:

{
  "addrStr": "Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "balance": 10.01,
  "balanceSat": 1001000000
}

Note: This is not actually part of Dash's Insight API, but would be if it could correctly calculate balances adjusted for Instant Send.

dashsight.getTx(txIdHex)

Get transaction details by its (hex-encoded) ID.

// Base58Check-encoded Pay to Pubkey Hash (p2pkh)
let txid = `f92e66edc9c8da41de71073ef08d62c56f8752a3f4e29ced6c515e0b1c074a38`;

let tx = await dashsight.getTx(txid);

console.log(tx);

Example output:

{
  "txid": "f92e66edc9c8da41de71073ef08d62c56f8752a3f4e29ced6c515e0b1c074a38",
  "version": 2,
  "locktime": 1699123,
  "vin": [
    {
      "txid": "346035a9ab38c84eb13964aff45e7a4d363f467fb755be0ffac6dfb2f80f63dc",
      "vout": 1,
      "sequence": 4294967294,
      "n": 0,
      "scriptSig": {
        "hex": "483045022100f8f5feb0a533f8509cb6cbb0b046dc1136adaab378e9a5151dc4fe633dd064710220157b08ddf7557b5e69c6128989a7da7fccadd28836f0fb99860d730f4320681a0121038c681a93929bb4fe5d39025d42f711abab49a247f8312943d3021c6eb3231c82",
        "asm": "3045022100f8f5feb0a533f8509cb6cbb0b046dc1136adaab378e9a5151dc4fe633dd064710220157b08ddf7557b5e69c6128989a7da7fccadd28836f0fb99860d730f4320681a[ALL] 038c681a93929bb4fe5d39025d42f711abab49a247f8312943d3021c6eb3231c82"
      },
      "addr": "Xhn6eTCwW94vhVifhshyTeihvTa7LcatiM",
      "valueSat": 100001,
      "value": 0.00100001,
      "doubleSpentTxID": null
    }
  ],
  "vout": [
    {
      "value": "0.00099809",
      "n": 0,
      "scriptPubKey": {
        "hex": "76a91473640d816ff4161d8c881da78983903bf9eba2d988ac",
        "asm": "OP_DUP OP_HASH160 73640d816ff4161d8c881da78983903bf9eba2d9 OP_EQUALVERIFY OP_CHECKSIG",
        "addresses": ["XmCyQ6qARLWXap74QubFMunngoiiA1QgCL"],
        "type": "pubkeyhash"
      },
      "spentTxId": null,
      "spentIndex": null,
      "spentHeight": null
    }
  ],
  "blockheight": -1,
  "confirmations": 0,
  "time": 1657004174,
  "valueOut": 0.00099809,
  "size": 192,
  "valueIn": 0.00100001,
  "fees": 0.00000192,
  "txlock": true
}

Note: newly minted coins (block rewards) have a different format than payment transactions. See the example at:

• ./examples/block-reward-from-coinbase.tx.json

dashsight.getTxs(addrStr)

Get all transaction associated with an address.

// Base58Check-encoded Pay to Pubkey Hash (p2pkh)
let addr = `Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx`;

let txs = await dashsight.getTxs(addr);

console.log(txs);

Example output:

(same as above for getTx(txid))

dashsight.getUtxos(addrStr)

Gets all unspent transaction outputs (the usable "coins") for the given address.

Do not use. Use dashsight.getCoreUtxos(address) instead.

This does not include outputIndex, which is necessary to create a transaction for use with dashsight. instantSend(txHex).

Provided for completeness / compatibility only.

// Base58Check-encoded Pay to Pubkey Hash (p2pkh)
let addr = `Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx`;

let utxos = await dashsight.getUtxos(addr);

console.log(utxos);

[
  {
    "address": "Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
    "txid": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
    "vout": 0,
    "scriptPubKey": "00000000000000000000000000000000000000000000000000",
    "amount": 0.01,
    "satoshis": 1000000,
    "height": 1500000,
    "confirmations": 200000
  }
]

dashsight.getCoreUtxos(addrStr)

Gets all unspent transaction outputs (the usable "coins") for the given address, including all information needed by DashTx#hashAndSignAll() (and dashcore-lib.Transaction).

// Base58Check-encoded Pay to Pubkey Hash (p2pkh)
let addr = `Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx`;

let utxos = await dashsight.getCoreUtxos(addr);

console.log(utxos);

Example output:

[
  {
    "address": "XmCyQ6qARLWXap74QubFMunngoiiA1QgCL",
    "outputIndex": 0,
    "satoshis": 99809,
    "script": "76a91473640d816ff4161d8c881da78983903bf9eba2d988ac",
    "txId": "f92e66edc9c8da41de71073ef08d62c56f8752a3f4e29ced6c515e0b1c074a38"
  }
]

dashsight.instantSend(txHex)

Send a signed transaction to Dash's Insight API for relay and broadcast to the Dash network.

let txHex = 'xxxxxxxx...';

let result = await dashsight.instantSend(txHex);

console.log(result);

Example transaction hex (input):
(inspect at https://live.blockcypher.com/dash/decodetx/)

030000000187ab81e88e2c19ca354f33f14d5b43b60d171ac851eb97dddd271b510cadbdb0000000
006b483045022100ec38c77b9f285d4c9aeeba36c1fac51bb88f7443185caf7eec21b170cc5d4062
0220098dcb5d90cb5f4ddc75ef54e2b2d1dbf220eb6fc28eed61c43192c0a420802c012103a6da86
f51829979a3c9f05251d9400d153111655526c6c25f8f82aba38b8a745ffffffff01188501000000
00001976a9149a00c2072c0209688cc6de5cc557af03e4f41b6388ac00000000

Example output:

{ "txid": "0f90cf5e03e8b8f8c4468f60fc8328cfcd5617fc2163f485fabfd227c692bf93" }

Guides & Code Examples for creating and signing txHex:

• How to create a txHex with DashTx + DashKeys
• Balance Transfer + DashSight: ./examples/balance-transfer.js.
• Multi-Payout + DashSight: ./examples/multi-send.js.