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Uniform `market["type"]` field semantics

See original GitHub issue

The market["type"] field returned by Exchange.fetch_markets() seems to have different semantics across exchanges.

Here is a comparison of the market type literals across 4 exchanges:

Exchange	Spot	Margin	Delivery futures	Perpetual swaps	Options
Binance	‘spot’	‘margin’	‘delivery’	‘future’	-
FTX	‘spot’	-	‘future’	‘swap’	-
OKEx	‘spot’	-	‘futures’	‘swap’	‘option’
Gate.io	‘spot’	‘margin’	‘future’	‘swap’	'option

Is there a plan to make the market type part of the public API? Is there an exchange-independent way to determine if a symbol is a delivery future or a swap?

Thanks!

Issue Analytics

State:
Created 2 years ago
Reactions:9
Comments:18 (13 by maintainers)

Top GitHub Comments

5reactions

frosty00commented, Jan 4, 2022

I’d suggest we call expiring contracts future and swaps swap everywhere

3reactions

mattepozzcommented, Jan 11, 2022

Hello! I noticed another bug related to this issue.

On Binance USDⓈ-M perpetual swaps and delivery futures have the same type: future.

Steps to reproduce:

exchange = ccxt.binanceusdm()
markets = exchange.load_markets()
print(f"BTC/USDT type       = {markets['BTC/USDT']['type']}")
print(f"BTCUSDT_220325 type = {markets['BTCUSDT_220325']['type']}")

# BTC/USDT type       = future
# BTCUSDT_220325 type = future

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