Is there a way to send a multi dimensional array via a web request with MQL4?

Question

I've already used the native WebRequest() function to POST data.

Usually I post data using these lines below

// ********** 

char dataUpdatePost[]; 
char dataUpdateResult[];
string dataUpdateStr = "dataUpdateFlag=YES&orderNumber=" + orderNumber + "&profit=" + profit + "&profitPips=" + profitPips + "&cookie=" + sessionID;

ArrayResize(dataUpdatePost, StringToCharArray(dat[0,1], dataUpdatePost, 0, WHOLE_ARRAY, CP_UTF8) - 1);

ResetLastError();

int updateDataRes = WebRequest( "POST", 
                                "http://service.jumpinvestor.com/",
                                "",
                                NULL,
                                1,
                                dataUpdatePost,
                                0,
                                dataUpdateResult,
                                dataUpdateHeaders
                                );
// **********  

and it works fine ...

but this I would like to send an array like this.

string dat[3][10]; 

Is there a way in MQL4 to send it via WebRequest()?

Thank you in advance.

Answer 1

JSON: The best way is to convert (serialize) your array into a JSON string, and send it over, with the WebRequest(). JSON is widely accepted format and chances are your web-application is able to parse (deserialize) them out of the box.

The downside is that you will need to write a serializer for it.
So far, I've only come across one MQL4 serializer:
https://www.mql5.com/en/code/11134

Good luck!