file_create.py

"""
Run with: 
uv run examples/file_create.py
python examples/file_create.py

"""
import os
import sys
from dotenv import load_dotenv

from hiero_sdk_python import (
    Client,
    AccountId,
    PrivateKey,
    Network,
)
from hiero_sdk_python.file.file_create_transaction import FileCreateTransaction
from hiero_sdk_python.response_code import ResponseCode

load_dotenv()

def setup_client():
    """Initialize and set up the client with operator account"""
    network = Network(os.getenv('NETWORK'))
    client = Client(network)

    operator_id = AccountId.from_string(os.getenv('OPERATOR_ID'))
    operator_key = PrivateKey.from_string(os.getenv('OPERATOR_KEY'))
    client.set_operator(operator_id, operator_key)
    
    return client

def file_create():
    """
    Demonstrates creating a file on the network by:
    1. Setting up client with operator account
    2. Creating a file with a private key
    3. Creating a new file
    """
    client = setup_client()
    
    file_private_key = PrivateKey.generate_ed25519()
    
    # Create file
    receipt = (
        FileCreateTransaction()
        .set_keys(file_private_key.public_key())  # Set the keys required to sign any modifications to this file
        .set_contents(b"Hello, this is the content of my file on Hedera!")
        .set_file_memo("My first file on Hedera")
        .freeze_with(client)
        .sign(file_private_key)
        .execute(client)
    )
    
    # Check if the transaction was successful
    if receipt.status != ResponseCode.SUCCESS:
        print(f"File creation failed with status: {ResponseCode(receipt.status).name}")
        sys.exit(1)
    
    file_id = receipt.file_id
    print(f"File created successfully with ID: {file_id}")

if __name__ == "__main__":
    file_create()