How to set up testnet accounts?

[EvgeniiaVak]

I tried to launch it with bitmex and binance testnet accounts and it always says Invalid authentication details, although I just copy-paste the API keys and secrets on my http://localhost/accounts.
Also there are such errors:

 2022-03-17 17:39:17,179 ERROR    RecentTradeUpdater[bitmex] Fail to update recent trades : get_recent_trades is not implemented (NotImplementedError)
 2022-03-17 17:39:17,184 ERROR    RecentTradeUpdater[bitmex] get_recent_trades is not implemented
...
 2022-03-17 17:39:28,690 ERROR    ExchangeManager      binance does not have a testnet/sandbox URL for sapi endpoints

Looks like bitmex is not implemented, that's fine, but binance should be right? maybe for testnet I should choose some other exchange name, not binance?

[GuillaumeDSM]

You can use testnet by enabling exchange sandboxes in your exchange config. If you do so, please ignore the credentials error message as it's not checking on sandbox for now, if your API setup is a valid sandbox one, it will work