Lighter order param bug

[DoganM95]

Operating System

No response

Programming Language

Javascript

CCXT Version

4.5.42

Description

I just tried creating an order, but the parameter requirements do not match the documentation.

I submitted an order like this:

const orderResponse = await lighterCcxt.createOrder("ETH/USDC:USDC", "market", "buy", 0.0001);

Got the following error:

name ='ArgumentsRequired'
message ='lighter createOrder() requires a price argument'

And found the contradicting documentation:

Param	Type	Required	Description
price	float	No	the price at which the order is to be fulfilled, in units of the quote currency, ignored in market orders

https://github.com/ccxt/ccxt/blob/master/wiki/exchanges/lighter.md#createorder

I dont get why price is needed for a market order, that should be filled at the current price anyway, but that's a different story :)

[carlosmiei]

Hello @DoganM95,

thanks for reporting it, we will take a look, I had the idea price was always required but we will double-check it (btw some other dexes like HL also reuqire the price for things like slippage calculation).

[carlosmiei]

@DoganM95 Btw, these https://github.com/ccxt/ccxt/blob/master/wiki/exchanges/lighter.md#createorder are the generic unified docs based on most common behaviors we see across dozens of exchanges, but they do not reflect some exchanges' specificities and particularities, in other orders, they're not Lighter specific

[carlosmiei]

@DoganM95 Yeah as you can see from the official SDK price is required even for market orders as the "worst possible execution price" similar to the max allowed slippage: https://github.com/elliottech/lighter-python/blob/main/examples/create_market_order_eth_buy.py

[DoganM95]

Thanks for the fast clarification, will keep that in mind for the future.