Write codes for new exchange

[mertdogan]

I want to write script codes for an exchange that listed in ccxt but not in your list of exchanges directory.

Where may i start and what must i do? Are there any step by step guide or your reccomendations for this?

[Herklos]

I want to write script codes for an exchange that listed in ccxt but not in your list of exchanges directory.

Where may i start and what must i do? Are there any step by step guide or your reccomendations for this?

Hi @mertdogan, that's a good question.
First we are listing all ccxt exchanges without any filter so it should appear in your OctoBot exchange list.
Secondly you can create a tentacle in tentacles/Trading/Exchange/your_exchange to create a python module that implement your exchange. You should have a look at other tentacle in tentacles/Trading/Exchange that implements fixes on ccxt implementations.

[mertdogan]

Thank you so much. I examine with files in tentacles\Trading\Exchange folder and i see a lot of different definitions and custom functions about each exchange.

What criteria do you take as basis when determining these definitions?

[GuillaumeDSM]

Hi @mertdogan,
These functions are local overrides of the generic ccxt exchange that is used when the exchange is behaving exactly like ccxt is expecting it to.
Basically if an exchange has a different way of handling candle, open orders or anything in its API (different than on ccxt expected behavior), it's necessary to add a custom function for this part on the related exchange (in an exchange tentacle) so that the data given to OctoBot always has the same format

[mertdogan]

How can we understand and fix differense?

[GuillaumeDSM]

we need to manually test it and maintain it when there are changes

[mertdogan]

Thank you