pytonconnect 0.4.0

Python SDK for TON Connect 2.0

PyTonConnect

Python SDK for TON Connect 2.0

⚠️ The library has not been developed for a long time.

Analogue of the @tonconnect/sdk library.

Use it to connect your app to TON wallets via TonConnect protocol. You can find more details and the protocol specification in the docs.

Vulnerable

🛑 A vulnerability was found in the check_proof function. If you use this functionality in your project, consider switching to another library!

Installation

Install Python 3 package: pip3 install pytonconnect

Examples

Add the tonconnect-manifest

App needs to have its manifest to pass meta information to the wallet. Manifest is a JSON file named as tonconnect-manifest.json following format:

{
  "url": "<app-url>",                        // required
  "name": "<app-name>",                      // required
  "iconUrl": "<app-icon-url>",               // required
  "termsOfUseUrl": "<terms-of-use-url>",     // optional
  "privacyPolicyUrl": "<privacy-policy-url>" // optional
}

Make sure that manifest is available to GET by its URL.

Init connector and call restore_connection.

If user connected his wallet before, connector will restore the connection

import asyncio
from pytonconnect import TonConnect

async def main():
    connector = TonConnect(manifest_url='https://raw.githubusercontent.com/XaBbl4/pytonconnect/main/pytonconnect-manifest.json')
    is_connected = await connector.restore_connection()
    print('is_connected:', is_connected)

if __name__ == '__main__':
    asyncio.get_event_loop().run_until_complete(main())

Fetch wallets list

You can fetch all supported wallets list

wallets_list = connector.get_wallets()

# wallets_list is 
# [
#   {
#     name: str,
#     image: str,
#     about_url: str,
#     bridge_url: str,
#     universal_url: str,
#   },
# ]

You also can get wallets list using get_wallets static method:

wallets_list = TonConnect.get_wallets()

Subscribe to the connection status changes

def status_changed(wallet_info):
    # update state/reactive variables to show updates in the ui
    print('wallet_info:', wallet_info)
    unsubscribe()

unsubscribe = connector.on_status_change(status_changed)
# call unsubscribe() later to save resources when you don't need to listen for updates anymore.

Initialize a wallet connection via universal link

generated_url = await connector.connect(wallets_list[0])
print('generated_url:', generated_url)

Then you have to show this link to user as QR-code, or use it as a deep_link. You will receive an update in connector.on_status_change when user approves connection in the wallet.

Send transaction

transaction = {
    'valid_until': 1681223913,
    'messages': [
        {
            'address': '0:0000000000000000000000000000000000000000000000000000000000000000',
            'amount': '1',
            # 'stateInit': 'base64_YOUR_STATE_INIT' # just for instance. Replace with your transaction state_init or remove
        },
        {
            'address': '0:0000000000000000000000000000000000000000000000000000000000000000',
            'amount': '1',
            # 'payload': 'base64_YOUR_PAYLOAD' # just for instance. Replace with your transaction payload or remove
        }
    ]
}

try:
    result = await connector.send_transaction(transaction)
    print('Transaction was sent successfully')
except Exception as e:
    if isintance(e, UserRejectsError):
        print('You rejected the transaction. Please confirm it to send to the blockchain')
    else:
        print('Unknown error:', e)