dposlib package aims to provide a simple API to ARK blockchain and forks.

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Quick View

Available network

• Ark
  • mainet : ark
  • devnet : dark
  • forks
    • Persona : prs
    • Ripa : ripa
    • Phantom : xph

Overview

Import REST API

>>> from dposlib import rest
>>> rest.use("dark")

Bake Transaction:

>>> from dposlib.blockchain import Transaction
>>> tx = Transaction(
... amount=100000000,
... recipientId="DRgh1n8oyGHDE6xXVq4yhh3sSajAr7uHJY",
... secret="secret",
... secondSecret="secondSecret")
>>> tx.finalize()
>>> tx
{
  "amount": 100000000,
  "fee": 1830000,
  "id": "5a90ea87fb8848c3402e5d6da5d34651eee01124387aa4f499c84621e03dd791",
  "recipientId": "DRgh1n8oyGHDE6xXVq4yhh3sSajAr7uHJY",
  "senderPublicKey": "03a02b9d5fdd1307c2ee4652ba54d492d1fd11a7d1bb3f3a44c4a05e79f19de933",
  "signSignature": "3045022100f297bf2241eb1603c4e91552416bbd900f1335684d3bb8751a043b5ae4569948022067c166322df1374222589d81b4ea52d56d93db8eab7be59a258420cbc6217360",
  "signature": "304402205e609776d7d04a659ab8057e269c26e8b611ed4952ffb6b1af9c9bca19a9e3c50220755b8e2a10783bab0e7da95229e358d8e9e4628241a39640869fb8bf856a953a",
  "timestamp": 45690392,
  "type": 0
}

Broadcast transaction

>>> rest.POST.api.transactions(transactions=[tx])
{'data': {'broadcast': ['5a90ea87fb8848c3402e5d6da5d34651eee01124387aa4f499c84621e03dd791'], 'excess': [], 'invalid': [], 'accept': []}}

Network API

>>> rest.use("ark")
>>> dlgt = dposlib.core.api.Delegate("arky") # get delegate by username
>>> dlgt.forged()
{'fees': 3294.7, 'forged': 227230.7, 'rewards': 223936.0}
>>> dlgt.address
'ARfDVWZ7Zwkox3ZXtMQQY1HYSANMB88vWE'
>>> blk = dlgt.lastBlock() # get last forged block
>>> blk
{
  "blockSignature": "304402200a496a628c2741537538f0492f9d683d3c4f1b30c8dd03c33ad8fbe79d08b6eb02206cdec7e1210db53a3ca22da30912479ff3644d3a1ed1d878417d5965f34dfd6d",
  "confirmations": 68,
  "generatorId": "ARfDVWZ7Zwkox3ZXtMQQY1HYSANMB88vWE",
  "generatorPublicKey": "030da05984d579395ce276c0dd6ca0a60140a3c3d964423a04e7abe110d60a15e9",
  "height": 5862354,
  "id": "1894085440657345411",
  "numberOfTransactions": 0,
  "payloadHash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
  "payloadLength": 0,
  "previousBlock": "11181074894913507025",
  "reward": 2.0,
  "timestamp": 47535768,
  "totalAmount": 0.0,
  "totalFee": 0.0,
  "totalForged": 2.0,
  "version": 0
}
>>> blk.transactions()
[]
>>> wlt = dposlib.core.api.Wallet(dlgt.address) # get wallet by address
>>> wlt.balance
2537.42979112
>>> for elem in [(tx["recipientId"], tx["amount"]) for tx in wlt.lastTransactions(2)]:
...     print(elem)
...
('AHMXV6UdkVxsTwMqeoeqdpotRRmGZZaAtj', 0.08403461)
('AUahWfkfr5J4tYakugRbfow7RWVTK35GPW', 329.32420472)
>>> wlt.link("secret passphrase here")
>>> wlt.send(1, "ARfDVWZ7Zwkox3ZXtMQQY1HYSANMB88vWE")
{'transactionIds': ['bbce72e7a76f5f71209c8ab29b4b4299a409241dfc77835150459a34bd5a5c16'], 'success': True}

Version

0.1.0

• First rebrand

0.1.1

• ARK packaging improvement (v1 and v2)
• LISK packaging improvement (v09 and v10)
• ARK dynamicFee implementation
• Network API created

0.1.2

• Packaging improvement

0.1.3

• REST requests header bugfix (ubuntu)

0.1.4

• Python 2.x compatibility fix
• dposlib.core.Transaction.sign does not set fees anymore
• dposlib.core.Transaction.finalize set fees before signature
• dposlib.core.Transaction fee management improved

0.1.5

• compatibility with both ark-core v2 devnet and mainnet

0.1.6

• Ark-core v 2.1.x compatibility

0.1.7

• added transaction and rest MarkDown documentation files
• dposlib.core.api is both python 2.x and 3.x compliant
• added Webhook api (experimental)
• fee data initialisation improvement
• transaction broadcasting improvement
• peer selection improvement
• Lisk blockchain and forks developpement frozen

0.1.8 current work

• added ark v2.4 compatibility
• api wallet link using getpass library
• added ledger nano S support (transaction type 0, 1, 2 & 3)
• peer selection now checks syncing status

TODO

• doc writing
• unittest
• wallet
• CLI