binance: fix `FutesPair` to have `.filters`

Not sure why it seemed like futures pairs didn't have this field but add
it to the parent `Pair` type as well as drop the overridden
`.price/size_tick` fields instead doing the same as in spot as well.

Also moves the `MarketType: Literal` (for the `Client.mkt_mode: str`)
and adds a pair type lookup table for exchange info loading.
basic_buy_bot
Tyler Goodlet 2023-06-12 21:55:45 -04:00
parent d173d373cb
commit dc23f1c9bd
1 changed files with 35 additions and 23 deletions

View File

@ -21,10 +21,15 @@
Per market data-type definitions and schemas types.
"""
from __future__ import annotations
from typing import (
Literal,
)
from decimal import Decimal
from piker.data.types import Struct
class Pair(Struct, frozen=True):
symbol: str
status: str
@ -38,8 +43,25 @@ class Pair(Struct, frozen=True):
baseAsset: str
baseAssetPrecision: int
filters: dict[
str,
str | int | float,
]
class SpotPair(Struct, frozen=True):
@property
def price_tick(self) -> Decimal:
# XXX: lul, after manually inspecting the response format we
# just directly pick out the info we need
step_size: str = self.filters['PRICE_FILTER']['tickSize'].rstrip('0')
return Decimal(step_size)
@property
def size_tick(self) -> Decimal:
step_size: str = self.filters['LOT_SIZE']['stepSize'].rstrip('0')
return Decimal(step_size)
class SpotPair(Pair, frozen=True):
cancelReplaceAllowed: bool
allowTrailingStop: bool
@ -56,24 +78,8 @@ class SpotPair(Struct, frozen=True):
defaultSelfTradePreventionMode: str
allowedSelfTradePreventionModes: list[str]
filters: dict[
str,
str | int | float,
]
permissions: list[str]
@property
def price_tick(self) -> Decimal:
# XXX: lul, after manually inspecting the response format we
# just directly pick out the info we need
step_size: str = self.filters['PRICE_FILTER']['tickSize'].rstrip('0')
return Decimal(step_size)
@property
def size_tick(self) -> Decimal:
step_size: str = self.filters['LOT_SIZE']['stepSize'].rstrip('0')
return Decimal(step_size)
class FutesPair(Pair):
@ -105,10 +111,16 @@ class FutesPair(Pair):
def quoteAssetPrecision(self) -> int:
return self.quotePrecision
@property
def price_tick(self) -> Decimal:
return Decimal(self.pricePrecision)
@property
def size_tick(self) -> Decimal:
return Decimal(self.quantityPrecision)
MarketType = Literal[
'spot',
'margin',
'usd_futes',
'coin_futes',
]
PAIRTYPES: dict[MarketType, Pair] = {
'spot': SpotPair,
'usd_futes': FutesPair,
}