This is a modification of my original MT4 to FXTrade V20 Bride to allow for using one account to place short trades and a second account to place long trades. Doing this allows for a form of hedging, although you would need to transfer funds between accounts on a regular basis to keep things balanced.
This Python script to act as a bridge from MT4 to Oanda FXtrade. I use this to allow my MT4 expert advisors to send trades to Oanda's FXtrade V20 API. Using this I can place trades as small as 1 unit.
The MQL script writes files to the files/FXtrade folder and this Python script reads them and manipulates orders via the Oanda API. Reading and writing files to communicate orders was the most consistent method that I found to get data from MT4 to Python. It is also unlikely that a future MT4 update will disable file usage.
requests
six
Create a folder named FXtrade within the /MQL4/Files directory of your MT4 installation. Edit the details within the static.py file using your Oanda connection details and the directory path to the FXtrade folder you just created.
I do not use pending orders but rather allow my experts to monitor when to open and close trades, so the functionality is limited to the following.
- Open market order with/without stoploss and target
- Add on to existing trade
- Fully or partially close trade
// create order file
bool OpenMarketOrder(string fuInstrument, string fuSide, int fuUnits, double fuStop=0.0, double fuTarget=0.0){
int fuFilehandle;
bool fuOrder;
string pair = fuInstrument;
StringReplace(pair,"_","");
string fuCommand = "openmarket-"+fuInstrument+"-"+fuSide+"-"+IntegerToString(fuUnits)+"-"+DoubleToStr(fuStop,int(MarketInfo(pair,MODE_DIGITS)))+"-"+DoubleToStr(fuTarget,int(MarketInfo(pair,MODE_DIGITS)));
LockDirectory();
fuFilehandle=FileOpen("FXtrade\\"+fuCommand,FILE_WRITE|FILE_TXT);
if(fuFilehandle!=INVALID_HANDLE){
FileClose(fuFilehandle);
fuOrder = True;
} else fuOrder = False;
UnlockDirectory();
Sleep(5000);
return fuOrder;
}
// create close position file
bool ClosePosition(string fuInstrument, int arrID, string fuSide, int fuUnits=0){
string pair = fuInstrument;
StringReplace(pair,"_","");
int fuFilehandle;
fuFilehandle=FileOpen("FXtrade\\close-"+fuInstrument+"-"+fuSide+"-"+IntegerToString(fuUnits),FILE_WRITE|FILE_TXT);
if(fuFilehandle!=INVALID_HANDLE){
FileClose(fuFilehandle);
SendNotification("Close "+pair+": "+DoubleToStr(PairInfo[arrID].Profit,2));
return True;
} else return False;
}
// lock directory so python does not access files
bool LockDirectory(){
int fuFilehandle;
fuFilehandle=FileOpen("FXtrade\\MT4-Locked",FILE_WRITE|FILE_TXT);
if(fuFilehandle!=INVALID_HANDLE){
FileClose(fuFilehandle);
return True;
} else return False;
}
// unlock directory so python can access files
bool UnlockDirectory(){
int fuFilehandle;
fuFilehandle=FileDelete("FXtrade\\MT4-Locked");
if (fuFilehandle == False) return False;
else return True;
}
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