py-near 1.2.19

Async client for NEAR Blockchain with native HOT Protocol & NEAR Intents support

py-near

py-near is a Async client for NEAR Blockchain with native HOT Protocol & NEAR Intents support

Examples

📚 Click to see some basic examples

Few steps before getting started...

• Install the latest stable version of py-near, simply running pip install py-near
• Create NEAR account and get your private key wallet

Simple money transfer

from py_near.account import Account
import asyncio
from py_near.dapps.core import NEAR

ACCOUNT_ID = "bob.near"
PRIVATE_KEY = "ed25519:..."


async def main():
   acc = Account(ACCOUNT_ID, PRIVATE_KEY)

   await acc.startup()
   print(await acc.get_balance() / NEAR)
   print(await acc.get_balance("bob.near") / NEAR)

   tr = await acc.send_money("bob.near", NEAR * 2)
   print(tr.transaction.hash)
   print(tr.logs)


asyncio.run(main())

Working with NEAR Intents (OmniBalance)

from py_near.omni_balance import OmniBalance
import asyncio

ACCOUNT_ID = "bob.near"
PRIVATE_KEY = "ed25519:..."


async def main():
   omni = OmniBalance(ACCOUNT_ID, PRIVATE_KEY)
   await omni.startup()

   # Create intent with multiple actions: transfer, token swap, and auth call
   commitment = omni.transfer(
      tokens={"nep141:wrap.near": "5"},
      receiver_id="alice.near",
      memo="Test transfer",
   )._token_diff({
      "nep141:wrap.near": "-5",
   }).auth_call("contract.near", msg="test").sign()

   # Simulate intent before submitting
   sim = await omni.simulate_intent(commitment)
   print(sim.logged_intents)

   # Submit intent to solver network
   intent_hash = await omni.publish_intents(commitment)
   print(f"Intent hash: {intent_hash}")

   # Wait for transaction hash
   tr_hash = await omni.get_tr_hash_from_intent(intent_hash)
   print(f"Transaction hash: {tr_hash}")

   await omni.shutdown()


asyncio.run(main())

Parallel requests

Only one parallel request can be made from one private key. All transaction calls execute sequentially. To make several parallel calls you need to use several private keys

acc = Account("bob.near", private_key1)

for i in range(2):
  signer = InMemorySigner.from_random(AccountId("bob.near"), KeyType.ED25519)
  await acc.add_full_access_public_key(str(signer.public_key))
  print(signer.secret_key)

Now we can call transactions in parallel

acc = Account("bob.near", [private_key1, private_key2, private_key3])
# request time = count transactions / count public keys
tasks = [
  asyncio.create_task(acc.send_money("alisa.near", 1)),
  asyncio.create_task(acc.send_money("alisa.near", 1)),
  asyncio.create_task(acc.send_money("alisa.near", 1)),
]
for t in tasks:
  await t

Official py-near resources:

• News: @herewallet
• Social media:
  • 🇺🇸 Telegram
  • 🇺🇸 Twitter
• PyPI: py-near
• Documentation: py-near.readthedocs.io
• Source: Github repo
• Issues/Bug tracker: Github issues tracker

Contributors

Code Contributors

This project exists thanks to all the people who contribute. [Code of conduct].