# -*- coding: utf-8 -*- # PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN: # https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code import ccxt.async_support from ccxt.async_support.base.ws.cache import ArrayCache from ccxt.base.types import Any, Int, Liquidation, OrderBook, Str, Strings, Ticker, Tickers, Trade from ccxt.async_support.base.ws.client import Client from typing import List from ccxt.base.precise import Precise class lighter(ccxt.async_support.lighter): def describe(self) -> Any: return self.deep_extend(super(lighter, self).describe(), { 'has': { 'ws': True, 'watchTicker': True, 'watchMarkPrice': True, 'watchMarkPrices': True, 'watchTickers': True, 'watchBidsAsks': False, 'watchOrderBook': True, 'watchTrades': True, 'watchTradesForSymbols': False, 'watchOrderBookForSymbols': False, 'watchBalance': False, 'watchLiquidations': True, 'watchLiquidationsForSymbols': False, 'watchMyLiquidations': False, 'watchMyLiquidationsForSymbols': False, 'watchOHLCV': False, 'watchOHLCVForSymbols': False, 'watchOrders': False, 'watchMyTrades': True, 'watchPositions': False, 'watchFundingRate': False, 'watchFundingRates': False, 'unWatchOrderBook': True, 'unWatchTicker': True, 'unWatchTickers': True, 'unWatchTrades': True, 'unWatchMyTrades': True, 'unWatchMarkPrice': True, 'unWatchMarkPrices': True, }, 'urls': { 'api': { 'ws': 'wss://mainnet.zklighter.elliot.ai/stream', }, 'test': { 'ws': 'wss://testnet.zklighter.elliot.ai/stream', }, }, 'options': {}, }) def get_message_hash(self, unifiedChannel: str, symbol: Str = None, extra: Str = None): hash = unifiedChannel if symbol is not None: hash += '::' + symbol else: hash += 's' # tickers, orderbooks, ohlcvs ... if extra is not None: hash += '::' + extra return hash async def subscribe_public(self, messageHash, params={}): url = self.urls['api']['ws'] request: dict = { 'type': 'subscribe', } subscription: dict = { 'messageHash': messageHash, 'params': params, } return await self.watch(url, messageHash, self.extend(request, params), messageHash, subscription) async def subscribe_public_multiple(self, messageHashes, params={}): url = self.urls['api']['ws'] request: dict = { 'type': 'subscribe', } subscription: dict = { 'messageHashes': messageHashes, 'params': params, } return await self.watch_multiple(url, messageHashes, self.extend(request, params), messageHashes, subscription) async def unsubscribe_public(self, messageHash, params={}): url = self.urls['api']['ws'] request: dict = { 'type': 'unsubscribe', } subscription: dict = { 'messageHash': messageHash, 'params': params, } return await self.watch(url, messageHash, self.extend(request, params), messageHash, subscription) def handle_delta(self, bookside, delta): price = self.safe_float(delta, 'price') amount = self.safe_float(delta, 'size') bookside.store(price, amount) def handle_deltas(self, bookside, deltas): for i in range(0, len(deltas)): self.handle_delta(bookside, deltas[i]) def handle_order_book_message(self, client: Client, message, orderbook): data = self.safe_dict(message, 'order_book', {}) self.handle_deltas(orderbook['asks'], self.safe_list(data, 'asks', [])) self.handle_deltas(orderbook['bids'], self.safe_list(data, 'bids', [])) orderbook['nonce'] = self.safe_integer(data, 'offset') timestamp = self.safe_integer(message, 'timestamp') orderbook['timestamp'] = timestamp orderbook['datetime'] = self.iso8601(timestamp) return orderbook def handle_order_book(self, client: Client, message): # # { # "channel": "order_book:0", # "offset": 11413309, # "order_book": { # "code": 0, # "asks": [ # { # "price": "2979.64", # "size": "61.9487" # } # ], # "bids": [ # { # "price": "2979.36", # "size": "0.0000" # } # ], # "offset": 11413309, # "nonce": 3107818665 # }, # "timestamp": 1763448665923, # "type": "update/order_book" # } # data = self.safe_dict(message, 'order_book', {}) channel = self.safe_string(message, 'channel', '') parts = channel.split(':') marketId = parts[1] market = self.safe_market(marketId) symbol = market['symbol'] timestamp = self.safe_integer(message, 'timestamp') if not (symbol in self.orderbooks): self.orderbooks[symbol] = self.order_book() orderbook = self.orderbooks[symbol] type = self.safe_string(message, 'type', '') if type == 'subscribed/order_book': parsed = self.parse_order_book(data, symbol, timestamp, 'bids', 'asks', 'price', 'size') parsed['nonce'] = self.safe_integer(data, 'offset') orderbook.reset(parsed) elif type == 'update/order_book': self.handle_order_book_message(client, message, orderbook) messageHash = self.get_message_hash('orderbook', symbol) client.resolve(orderbook, messageHash) async def watch_order_book(self, symbol: str, limit: Int = None, params={}) -> OrderBook: """ watches information on open orders with bid(buy) and ask(sell) prices, volumes and other data https://apidocs.lighter.xyz/docs/websocket-reference#order-book :param str symbol: unified symbol of the market to fetch the order book for :param int [limit]: the maximum amount of order book entries to return :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: A dictionary of `order book structures ` indexed by market symbols """ await self.load_markets() market = self.market(symbol) request: dict = { 'channel': 'order_book/' + market['id'], } messageHash = self.get_message_hash('orderbook', symbol) orderbook = await self.subscribe_public(messageHash, self.extend(request, params)) return orderbook.limit() async def un_watch_order_book(self, symbol: str, params={}) -> Any: """ unWatches information on open orders with bid(buy) and ask(sell) prices, volumes and other data https://apidocs.lighter.xyz/docs/websocket-reference#order-book :param str symbol: unified symbol of the market :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: A dictionary of `order book structures ` indexed by market symbols """ await self.load_markets() market = self.market(symbol) request: dict = { 'channel': 'order_book/' + market['id'], } messageHash = self.get_message_hash('unsubscribe', symbol) return await self.unsubscribe_public(messageHash, self.extend(request, params)) def handle_ticker(self, client: Client, message): # # watchTicker # { # "channel": "market_stats:0", # "market_stats": { # "market_id": 0, # "index_price": "3015.56", # "mark_price": "3013.91", # "open_interest": "122736286.659423", # "open_interest_limit": "72057594037927936.000000", # "funding_clamp_small": "0.0500", # "funding_clamp_big": "4.0000", # "last_trade_price": "3013.13", # "current_funding_rate": "0.0012", # "funding_rate": "0.0012", # "funding_timestamp": 1763532000004, # "daily_base_token_volume": 643235.2763, # "daily_quote_token_volume": 1983505435.673896, # "daily_price_low": 2977.42, # "daily_price_high": 3170.81, # "daily_price_change": -0.3061987051035322 # }, # "type": "update/market_stats" # } # # watchTickers # { # "channel": "market_stats:all", # "market_stats": { # "96": { # "market_id": 96, # "index_price": "1.15901", # "mark_price": "1.15954", # "open_interest": "19392952.260530", # "open_interest_limit": "50000000000000.000000", # "funding_clamp_small": "0.0500", # "funding_clamp_big": "4.0000", # "last_trade_price": "1.15955", # "current_funding_rate": "0.0000", # "funding_rate": "0.0000", # "funding_timestamp": 1763532000004, # "daily_base_token_volume": 117634224.1, # "daily_quote_token_volume": 136339744.383989, # "daily_price_low": 1.15774, # "daily_price_high": 1.16105, # "daily_price_change": -0.004311757299805109 # } # }, # "type": "update/market_stats" # } # data = self.safe_dict(message, 'market_stats', {}) channel = self.safe_string(message, 'channel') if channel == 'market_stats:all': marketIds = list(data.keys()) for i in range(0, len(marketIds)): marketId = marketIds[i] market = self.safe_market(marketId) symbol = market['symbol'] ticker = self.parse_ticker(data[marketId], market) self.tickers[symbol] = ticker client.resolve(ticker, self.get_message_hash('ticker', symbol)) client.resolve(ticker, self.get_message_hash('ticker')) else: marketId = self.safe_string(data, 'market_id') market = self.safe_market(marketId) symbol = market['symbol'] ticker = self.parse_ticker(data, market) self.tickers[symbol] = ticker client.resolve(ticker, self.get_message_hash('ticker', symbol)) async def watch_ticker(self, symbol: str, params={}) -> Ticker: """ watches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market https://apidocs.lighter.xyz/docs/websocket-reference#market-stats :param str symbol: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: a `ticker structure ` """ await self.load_markets() market = self.market(symbol) request: dict = { 'channel': 'market_stats/' + market['id'], } messageHash = self.get_message_hash('ticker', symbol) return await self.subscribe_public(messageHash, self.extend(request, params)) async def un_watch_ticker(self, symbol: str, params={}) -> Any: """ unWatches a price ticker, a statistical calculation with the information calculated over the past 24 hours for all markets of a specific list https://apidocs.lighter.xyz/docs/websocket-reference#market-stats :param str symbol: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: a `ticker structure ` """ await self.load_markets() market = self.market(symbol) request: dict = { 'channel': 'market_stats/' + market['id'], } messageHash = self.get_message_hash('unsubscribe', symbol) return await self.unsubscribe_public(messageHash, self.extend(request, params)) async def watch_tickers(self, symbols: Strings = None, params={}) -> Tickers: """ https://apidocs.lighter.xyz/docs/websocket-reference#market-stats watches a price ticker, a statistical calculation with the information calculated over the past 24 hours for all markets of a specific list :param str[] [symbols]: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :param str [params.channel]: the channel to subscribe to, tickers by default. Can be tickers, sprd-tickers, index-tickers, block-tickers :returns dict: a `ticker structure ` """ await self.load_markets() symbols = self.market_symbols(symbols) request: dict = { 'channel': 'market_stats/all', } messageHashes = [] if symbols is None or len(symbols) == 0: messageHashes.append(self.get_message_hash('ticker')) else: for i in range(0, len(symbols)): symbol = symbols[i] messageHashes.append(self.get_message_hash('ticker', symbol)) newTicker = await self.subscribe_public_multiple(messageHashes, self.extend(request, params)) if self.newUpdates: result = {} result[newTicker['symbol']] = newTicker return result return self.filter_by_array(self.tickers, 'symbol', symbols) async def un_watch_tickers(self, symbols: Strings = None, params={}) -> Any: """ unWatches a price ticker, a statistical calculation with the information calculated over the past 24 hours for all markets of a specific list https://apidocs.lighter.xyz/docs/websocket-reference#market-stats :param str[] [symbols]: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: a `ticker structure ` """ await self.load_markets() request: dict = { 'channel': 'market_stats/all', } messageHash = self.get_message_hash('unsubscribe') return await self.unsubscribe_public(messageHash, self.extend(request, params)) async def watch_mark_price(self, symbol: str, params={}) -> Ticker: """ https://apidocs.lighter.xyz/docs/websocket-reference#market-stats watches a mark price :param str symbol: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: a `ticker structure ` """ return await self.watch_ticker(symbol, params) async def watch_mark_prices(self, symbols: Strings = None, params={}) -> Tickers: """ https://apidocs.lighter.xyz/docs/websocket-reference#market-stats watches mark prices :param str[] [symbols]: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: a `ticker structure ` """ return await self.watch_tickers(symbols, params) async def un_watch_mark_price(self, symbol: str, params={}) -> Any: """ https://apidocs.lighter.xyz/docs/websocket-reference#market-stats unWatches a mark price :param str symbol: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: a `ticker structure ` """ return await self.un_watch_ticker(symbol, params) async def un_watch_mark_prices(self, symbols: Strings = None, params={}) -> Any: """ https://apidocs.lighter.xyz/docs/websocket-reference#market-stats unWatches mark prices :param str[] [symbols]: unified symbol of the market to fetch the ticker for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict: a `ticker structure ` """ return await self.un_watch_tickers(symbols, params) def parse_ws_trade(self, trade, market=None): # # { # "trade_id": 526801155, # "tx_hash": "1998d9df580acb7540aa141cc369d6ef926d003b3062196d2007bca15f978ab208e0caae4ac5872b", # "type": "trade", # "market_id": 0, # "size": "0.0346", # "price": "3028.85", # "usd_amount": "104.798210", # "ask_id": 281475673670566, # "bid_id": 562949291740362, # "ask_client_id": 76303170, # "bid_client_id": 27601, # "ask_account_id": 99349, # "bid_account_id": 243008, # "is_maker_ask": False, # "block_height": 102322769, # "timestamp": 1763623734215, # "taker_position_size_before": "0.0346", # "taker_entry_quote_before": "104.359926", # "taker_initial_margin_fraction_before": 500, # "taker_position_sign_changed": True, # "maker_fee": 20, # "maker_position_size_before": "2.1277", # "maker_entry_quote_before": "6444.179555", # "maker_initial_margin_fraction_before": 200 # } # timestamp = self.safe_integer(trade, 'timestamp') tradeId = self.safe_string(trade, 'trade_id') priceString = self.safe_string(trade, 'price') amountString = self.safe_string(trade, 'size') isMakerAsk = self.safe_bool(trade, 'is_maker_ask') side = 'sell' if (isMakerAsk is True) else 'buy' makerFeeRate = self.safe_string(market, 'maker_fee') maker = Precise.string_div(makerFeeRate, '100') feeAmount = Precise.string_mul(maker, makerFeeRate) return self.safe_trade({ 'info': trade, 'id': tradeId, 'order': None, 'timestamp': timestamp, 'datetime': self.iso8601(timestamp), 'symbol': self.safe_symbol(None, market), 'type': None, 'side': side, 'takerOrMaker': 'maker', 'price': priceString, 'amount': amountString, 'cost': self.safe_string(trade, 'usd_amount'), 'fee': { 'cost': feeAmount, 'currency': 'USDC', }, }, market) def handle_trades(self, client: Client, message): # # { # "channel": "trade:0", # "liquidation_trades": [], # "nonce": 3159738569, # "trades": [ # { # "trade_id": 526801155, # "tx_hash": "1998d9df580acb7540aa141cc369d6ef926d003b3062196d2007bca15f978ab208e0caae4ac5872b", # "type": "trade", # "market_id": 0, # "size": "0.0346", # "price": "3028.85", # "usd_amount": "104.798210", # "ask_id": 281475673670566, # "bid_id": 562949291740362, # "ask_client_id": 76303170, # "bid_client_id": 27601, # "ask_account_id": 99349, # "bid_account_id": 243008, # "is_maker_ask": False, # "block_height": 102322769, # "timestamp": 1763623734215, # "taker_position_size_before": "0.0346", # "taker_entry_quote_before": "104.359926", # "taker_initial_margin_fraction_before": 500, # "taker_position_sign_changed": True, # "maker_fee": 20, # "maker_position_size_before": "2.1277", # "maker_entry_quote_before": "6444.179555", # "maker_initial_margin_fraction_before": 200 # } # ], # "type": "subscribed/trade" # } # liquidationData = self.safe_list(message, 'liquidation_trades', []) if len(liquidationData) > 0: self.handle_liquidation(client, message) data = self.safe_list(message, 'trades', []) channel = self.safe_string(message, 'channel', '') parts = channel.split(':') marketId = parts[1] market = self.safe_market(marketId) symbol = market['symbol'] stored = self.safe_value(self.trades, symbol) if stored is None: limit = self.safe_integer(self.options, 'tradesLimit', 1000) stored = ArrayCache(limit) self.trades[symbol] = stored for i in range(0, len(data)): trade = self.parse_ws_trade(data[i], market) stored.append(trade) messageHash = self.get_message_hash('trade', symbol) client.resolve(stored, messageHash) async def watch_trades(self, symbol: str, since: Int = None, limit: Int = None, params={}) -> List[Trade]: """ get the list of most recent trades for a particular symbol https://apidocs.lighter.xyz/docs/websocket-reference#trade :param str symbol: unified symbol of the market to fetch trades for :param int [since]: timestamp in ms of the earliest trade to fetch :param int [limit]: the maximum amount of trades to fetch :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict[]: a list of `trade structures ` """ await self.load_markets() market = self.market(symbol) request: dict = { 'channel': 'trade/' + market['id'], } messageHash = self.get_message_hash('trade', market['symbol']) return await self.subscribe_public(messageHash, self.extend(request, params)) async def un_watch_trades(self, symbol: str, params={}) -> Any: """ unsubscribe from the trades channel https://apidocs.lighter.xyz/docs/websocket-reference#trade :param str symbol: unified symbol of the market to fetch trades for :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict[]: a list of `trade structures ` """ await self.load_markets() market = self.market(symbol) request: dict = { 'channel': 'trade/' + market['id'], } messageHash = self.get_message_hash('unsubscribe', symbol) return await self.unsubscribe_public(messageHash, self.extend(request, params)) def handle_my_trades(self, client: Client, message): # # { # "channel": "account_all_trades:723310", # "trades": { # 13: [{ # "trade_id": 526801155, # "tx_hash": "1998d9df580acb7540aa141cc369d6ef926d003b3062196d2007bca15f978ab208e0caae4ac5872b", # "type": "trade", # "market_id": 0, # "size": "0.0346", # "price": "3028.85", # "usd_amount": "104.798210", # "ask_id": 281475673670566, # "bid_id": 562949291740362, # "ask_client_id": 76303170, # "bid_client_id": 27601, # "ask_account_id": 99349, # "bid_account_id": 243008, # "is_maker_ask": False, # "block_height": 102322769, # "timestamp": 1763623734215, # "taker_position_size_before": "0.0346", # "taker_entry_quote_before": "104.359926", # "taker_initial_margin_fraction_before": 500, # "taker_position_sign_changed": True, # "maker_fee": 20, # "maker_position_size_before": "2.1277", # "maker_entry_quote_before": "6444.179555", # "maker_initial_margin_fraction_before": 200 # }] # }, # "type": "update/account_all_trades" # } # data = self.safe_dict(message, 'trades', {}) marketIds = list(data.keys()) idsLength = len(marketIds) if idsLength == 0: return False # nothing to process if self.myTrades is None: limit = self.safe_integer(self.options, 'tradesLimit', 1000) self.myTrades = ArrayCache(limit) stored = self.myTrades messageHash = self.get_message_hash('myTrades') for i in range(0, len(marketIds)): marketId = marketIds[i] market = self.safe_market(marketId) trades = self.safe_list(data, marketId, []) for j in range(0, len(trades)): trade = self.parse_ws_trade(trades[j], market) stored.append(trade) symbol = trade['symbol'] if symbol is not None: symbolSpecificMessageHash = self.get_message_hash('myTrades', symbol) client.resolve(stored, symbolSpecificMessageHash) client.resolve(stored, messageHash) return True async def watch_my_trades(self, symbol: Str = None, since: Int = None, limit: Int = None, params={}) -> List[Trade]: """ subscribe to recent trades of an account. https://apidocs.lighter.xyz/docs/websocket-reference#account-all-trades :param str [symbol]: unified market symbol :param int [since]: timestamp in ms of the earliest trade to fetch :param int [limit]: the maximum amount of trades to fetch :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict[]: a list of `trade structures ` """ await self.load_markets() accountIndex = None accountIndex, params = await self.handleAccountIndex(params, 'watchMyTrades', 'accountIndex', 'account_index') messageHash = self.get_message_hash('myTrades') if symbol is not None: market = self.market(symbol) symbol = market['symbol'] messageHash = self.get_message_hash('myTrades', symbol) request: dict = { 'channel': 'account_all_trades/' + self.number_to_string(accountIndex), } trades = await self.subscribe_public(messageHash, self.extend(request, params)) if self.newUpdates: limit = trades.getLimit(symbol, limit) return self.filter_by_symbol_since_limit(trades, symbol, since, limit, True) async def un_watch_my_trades(self, symbol: Str = None, params={}) -> Any: """ unsubscribe from the account trades channel https://apidocs.lighter.xyz/docs/websocket-reference#account-all-trades :param str [symbol]: unified market symbol :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict[]: a list of `trade structures ` """ accountIndex accountIndex, params = await self.handleAccountIndex(params, 'unWatchMyTrades', 'accountIndex', 'account_index') messageHash = self.get_message_hash('unsubscribe', 'myTrades') if symbol is not None: await self.load_markets() market = self.market(symbol) symbol = market['symbol'] messageHash = self.get_message_hash('unsubscribe', symbol) request: dict = { 'channel': 'account_all_trades/' + accountIndex, } return await self.unsubscribe_public(messageHash, self.extend(request, params)) def parse_ws_liquidation(self, liquidation, market=None): # # { # "trade_id": 526801155, # "tx_hash": "1998d9df580acb7540aa141cc369d6ef926d003b3062196d2007bca15f978ab208e0caae4ac5872b", # "type": "liquidation", # "market_id": 0, # "size": "0.0346", # "price": "3028.85", # "usd_amount": "104.798210", # "ask_id": 281475673670566, # "bid_id": 562949291740362, # "ask_client_id": 76303170, # "bid_client_id": 27601, # "ask_account_id": 99349, # "bid_account_id": 243008, # "is_maker_ask": False, # "block_height": 102322769, # "timestamp": 1763623734215, # "taker_position_size_before": "0.0346", # "taker_entry_quote_before": "104.359926", # "taker_initial_margin_fraction_before": 500, # "taker_position_sign_changed": True, # "maker_fee": 20, # "maker_position_size_before": "2.1277", # "maker_entry_quote_before": "6444.179555", # "maker_initial_margin_fraction_before": 200 # } # timestamp = self.safe_integer(liquidation, 'timestamp') return self.safe_liquidation({ 'info': liquidation, 'symbol': market['symbol'], 'contracts': None, 'contractSize': None, 'price': self.safe_string(liquidation, 'price'), 'side': self.safe_string(liquidation, 'size'), 'baseValue': None, 'quoteValue': None, 'timestamp': timestamp, 'datetime': self.iso8601(timestamp), }) def handle_liquidation(self, client: Client, message): # # { # "channel": "trade:0", # "liquidation_trades": [], # "nonce": 3159738569, # "trades": [ # { # "trade_id": 526801155, # "tx_hash": "1998d9df580acb7540aa141cc369d6ef926d003b3062196d2007bca15f978ab208e0caae4ac5872b", # "type": "trade", # "market_id": 0, # "size": "0.0346", # "price": "3028.85", # "usd_amount": "104.798210", # "ask_id": 281475673670566, # "bid_id": 562949291740362, # "ask_client_id": 76303170, # "bid_client_id": 27601, # "ask_account_id": 99349, # "bid_account_id": 243008, # "is_maker_ask": False, # "block_height": 102322769, # "timestamp": 1763623734215, # "taker_position_size_before": "0.0346", # "taker_entry_quote_before": "104.359926", # "taker_initial_margin_fraction_before": 500, # "taker_position_sign_changed": True, # "maker_fee": 20, # "maker_position_size_before": "2.1277", # "maker_entry_quote_before": "6444.179555", # "maker_initial_margin_fraction_before": 200 # } # ], # "type": "subscribed/trade" # } # data = self.safe_list(message, 'liquidation_trades', []) channel = self.safe_string(message, 'channel', '') parts = channel.split(':') marketId = parts[1] market = self.safe_market(marketId) symbol = market['symbol'] stored = self.safe_value(self.liquidations, symbol) if stored is None: limit = self.safe_integer(self.options, 'liquidationsLimit', 1000) self.liquidations = ArrayCache(limit) stored = self.liquidations for i in range(0, len(data)): liquidation = self.parse_ws_liquidation(data[i], market) stored.append(liquidation) messageHash = self.get_message_hash('liquidations', symbol) client.resolve(stored, messageHash) async def watch_liquidations(self, symbol: str, since: Int = None, limit: Int = None, params={}) -> List[Liquidation]: """ watch the public liquidations of a trading pair https://apidocs.lighter.xyz/docs/websocket-reference#trade :param str symbol: unified symbol of the market to fetch trades for :param int [since]: timestamp in ms of the earliest trade to fetch :param int [limit]: the maximum amount of trades to fetch :param dict [params]: extra parameters specific to the exchange API endpoint :returns dict[]: a list of `trade structures ` """ await self.load_markets() market = self.market(symbol) request: dict = { 'channel': 'trade/' + market['id'], } messageHash = self.get_message_hash('liquidations', symbol) return await self.subscribe_public(messageHash, self.extend(request, params)) def handle_error_message(self, client, message): # # { # "error": { # "code": 30005, # "message": "Invalid Channel: (marketId)" # } # } # error = self.safe_dict(message, 'error') try: if error is not None: code = self.safe_string(message, 'code') if code is not None: feedback = self.id + ' ' + self.json(message) self.throw_exactly_matched_exception(self.exceptions['exact'], code, feedback) except Exception as e: client.reject(e) return True def handle_message(self, client: Client, message): if not self.handle_error_message(client, message): return type = self.safe_string(message, 'type', '') if type == 'ping': self.handle_ping(client, message) return channel = self.safe_string(message, 'channel', '') if channel.find('order_book:') >= 0: self.handle_order_book(client, message) return if channel.find('market_stats:') >= 0: self.handle_ticker(client, message) return if channel.find('trade:') >= 0: self.handle_trades(client, message) return if channel.find('account_all_trades:') >= 0: self.handle_my_trades(client, message) return if channel == '': self.handle_subscription_status(client, message) def handle_subscription_status(self, client: Client, message): # # { # "session_id": "8d354239-80e0-4b77-8763-87b6fef2f768", # "type": "connected" # } # # { # "type": "unsubscribed", # "channel": "order_book:0" # } # type = self.safe_string(message, 'type', '') id = self.safe_string(message, 'session_id') subscriptionsById = self.index_by(client.subscriptions, 'id') subscription = self.safe_dict(subscriptionsById, id, {}) if type == 'unsubscribed': self.handle_un_subscription(client, subscription) return message def handle_un_subscription(self, client: Client, subscription: dict): messageHashes = self.safe_list(subscription, 'messageHashes', []) subMessageHashes = self.safe_list(subscription, 'subMessageHashes', []) for i in range(0, len(messageHashes)): unsubHash = messageHashes[i] subHash = subMessageHashes[i] self.clean_unsubscription(client, subHash, unsubHash) self.clean_cache(subscription) def handle_ping(self, client: Client, message): # # {"type": "ping"} # self.spawn(self.pong, client, message) async def pong(self, client, message): request: dict = { 'type': 'pong', } await client.send(request)