pythonsolanacontract

solana-python call contract method

Currently, I trying to access the contract of solana with python based env. I want to try simple test like that.

  1. Access the contract of solana
  2. Access the function(hello) with solana-py

The solana contract info is here (devnet): https://explorer.solana.com/address/78PoQT2bBAJiQxk3qBshvxvFEiPeARDAzYE6zwqpbnUv?cluster=devnet

I searched some related information in StackOverflow are below:

How to access the contract function in solana using python? In the solidity env, I just create an instance with abi and contract address. However, I thought that solana contract is a little complex.

Solution

  • I just find a simple example for transferring tokens. I guess that is helping some who want to handle tokens in Solana.

    from solana.publickey import PublicKey
from solana.keypair import Keypair
from solana.system_program import TransferParams, transfer
from solana.transaction import Transaction
from solana.rpc.api import Client

import base58

http_client = Client("https://api.devnet.solana.com")
sender_pri = ''
receiver_pub = ''

def load_wallet():
    byte_array = base58.b58decode(sender_pri)
    account = Keypair.from_secret_key(byte_array)
    return account

def send_sol(receiver, amount):
    try:
        sender = load_wallet()

        txn = Transaction().add(transfer(TransferParams(
            from_pubkey=sender.public_key, to_pubkey=PublicKey(receiver), lamports=amount)))
        resp = http_client.send_transaction(txn, sender)

        transaction_id = resp['result']
        if transaction_id != None:
            return transaction_id
        else:
            return None

    except Exception as e:
        print('error:', e)
        return None

if __name__ == '__main__':
    send_sol(receiver_pub, 1)