diff --git a/piker/brokers/binance.py b/piker/brokers/binance.py index 3ec02328..a12cd4c9 100644 --- a/piker/brokers/binance.py +++ b/piker/brokers/binance.py @@ -1,5 +1,8 @@ # piker: trading gear for hackers -# Copyright (C) Guillermo Rodriguez (in stewardship for piker0) +# Copyright (C) +# Guillermo Rodriguez +# Tyler Goodlet +# (in stewardship for pikers) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by @@ -469,6 +472,34 @@ async def open_history_client( yield get_ohlc, {'erlangs': 3, 'rate': 3} +async def get_mkt_info( + fqme: str, + +) -> tuple[MktPair, Pair]: + + async with open_cached_client('binance') as client: + + pair: Pair = await client.exch_info(fqme.upper()) + + mkt = MktPair( + dst=Asset( + name=pair.baseAsset, + atype='crypto', + tx_tick=digits_to_dec(pair.baseAssetPrecision), + ), + src=Asset( + name=pair.quoteAsset, + atype='crypto', + tx_tick=digits_to_dec(pair.quoteAssetPrecision), + ), + price_tick=pair.price_tick, + size_tick=pair.size_tick, + bs_mktid=pair.symbol, + broker='binance', + ) + return mkt, pair + + async def stream_quotes( send_chan: trio.abc.SendChannel, @@ -483,47 +514,15 @@ async def stream_quotes( # XXX: required to propagate ``tractor`` loglevel to piker logging get_console_log(loglevel or tractor.current_actor().loglevel) - sym_infos = {} uid = 0 async with ( - open_cached_client('binance') as client, send_chan as send_chan, ): - - # keep client cached for real-time section - pairs = await client.exch_info() - sym_infos: dict[str, dict] = {} mkt_infos: dict[str, MktPair] = {} - for sym in symbols: - - pair: Pair = pairs[sym.upper()] - price_tick = pair.price_tick - size_tick = pair.size_tick - - mkt_infos[sym] = MktPair( - dst=Asset( - name=pair.baseAsset, - atype='crypto', - tx_tick=digits_to_dec(pair.baseAssetPrecision), - ), - src=Asset( - name=pair.quoteAsset, - atype='crypto', - tx_tick=digits_to_dec(pair.quoteAssetPrecision), - ), - price_tick=price_tick, - size_tick=size_tick, - bs_mktid=pair.symbol, - broker='binance', - ) - - sym_infos[sym] = { - 'price_tick_size': price_tick, - 'lot_tick_size': size_tick, - 'asset_type': 'crypto', - } + mkt, pair = await get_mkt_info(sym) + mkt_infos[sym] = mkt symbol = symbols[0] @@ -533,7 +532,6 @@ async def stream_quotes( symbol: { 'fqsn': sym, - # 'symbol_info': sym_infos[sym], 'mkt_info': mkt_infos[sym], 'shm_write_opts': {'sum_tick_vml': False}, }, @@ -638,5 +636,5 @@ async def open_symbol_search( # repack in dict form await stream.send({ item[0].symbol: item[0] - for item in matches + for item in matches })