@ClearSky 21 May 2021 edited

Create SLP transactions in Python using Electron Cash SLP CLI

SLP is getting more interest benefiting IMHO from lower fees, token creation simplicity and the special decentralization BCH offers. If you are a python developer there are not many choices to build using SLP. I believe Bitcash python lib SLP support is still under development with help from ActorForth. However there is a great work have been done in Electron Cash SLP version by James Cramer. I've tried to utilize that and use its' python code to do all the awesome stuff the wallet does from my own Paython application using the CLI interface. https://github.com/pybitcash/bitcash Features I'm a beginner programmer but wanted to share this code with the community so it may inspire senior devs to build on it or create a better alternative. I've added the following functionalities. Check daemon state Check wallet load state Get unused BCH and SLP address Get BCH address balance Prepare and broadcast BCH and SLP transactions You may need to apply an SLP validation fix before you can create transactions, the fix was done by a senior dev that I've worked with to fix the issue. https://github.com/simpleledger/Electron-Cash-SLP/pull/208 The code import json import subprocess # Check if daemon is connected def check_daemon(electron_cash_path): """Check daemon running Checks if Electron Cash daemon is running """ daemon_status = subprocess.run( [electron_cash_path,"daemon", "status"], capture_output=True, text=True ) json_output = json.loads(daemon_status.stdout) connected = json_output["connected"] return connected # Doesn't support multiple loaded wallet def check_wallet_loaded(electron_cash_path, wallet_path): """Check wallet loaded Checks if the wallet is loaded in Electron Cash daemon """ daemon_status = subprocess.run( [electron_cash_path,"daemon", "status"], capture_output=True, text=True ) json_output = json.loads(daemon_status.stdout) wallet_output = json_output["wallets"] wallet_loaded = list(wallet_output)[0] if wallet_loaded == wallet_path: return True else: return False def get_unused_bch_address(electron_cash_path, wallet_path): """Get unused BCH address """ unused_bch_address = subprocess.run( [electron_cash_path,"-w", wallet_path, "getunusedaddress"], capture_output=True, text=True ) return unused_bch_address def get_unused_slp_address(electron_cash_path, wallet_path): """Get unused SLP address """ receive_address = subprocess.run( [electron_cash_path,"-w", wallet_path, "getunusedaddress_slp"], capture_output=True, text=True ) return unused_slp_address def get_address_balance_bch(electron_cash_path, wallet_path, address): """Get the balance of a BCH address """ bch_address_balance = subprocess.run( [electron_cash_path, "-w", wallet_path, "getaddressbalance", address], capture_output=True, text=True ) bch_address_balance_final = json.loads((bch_address_balance.stdout).strip()) return bch_address_balance_final def prepare_transaction(electron_cash_path, wallet_path, tokenIdHex, address, token_amount): """Prepare transaction Creates the raw transaction data """ tx_data = subprocess.run( [electron_cash_path, "-w", wallet_path, "payto", address, bch_amount], capture_output=True, text=True ) tx_data_json = json.loads(tx_data.stdout) tx_hex = tx_data_json['hex'] return tx_hex def prepare_slp_transaction(electron_cash_path, wallet_path, tokenIdHex, address, token_amount): """Prepare SLP transaction Creates the raw SLP transaction data """ tx_data = subprocess.run( [electron_cash_path, "-w", wallet_path, "payto_slp", tokenIdHex, address, token_amount], capture_output=True, text=True ) tx_data_json = json.loads(tx_data.stdout) tx_hex = tx_data_json['hex'] return tx_hex def broadcast_tx(electron_cash_path, wallet_path, tx_hex): """Broadcast transaction Send the transaction to the network """ broadcast = subprocess.run( [electron_cash_path, "-w", wallet_path, "broadcast", tx_hex], capture_output=True, text=True ) tx_id_json = json.loads(broadcast.stdout) tx_id = tx_id_json[1] return tx_id Gitlab repo You can fork the code and contribute to the following repo https://gitlab.com/uak/electron-cash-slp-cli-python-basic-lib/-/blob/master/ec_slp_lib.py You can get Electron Cash SLP version from this repo: https://github.com/simpleledger/Electron-Cash-SLP