[mq5] Obtain information knowledge utilizing Webrequest ==> .json file – Market Information – 27 April 2025

I’ll share a easy methodology to obtain financial information knowledge from a web based JSON file and reserve it regionally utilizing the WebRequest() operate.

The aim is to fetch knowledge from https://nfs.faireconomy.media/ff_calendar_thisweek.json, which gives the financial calendar for the present week.

Supply code: 

void DownloadAndParse()

{
   string json_url = "https://nfs.faireconomy.media/ff_calendar_thisweek.json";
   string fileName = "calendar_thisweek.json";
   uchar outcome[];
   char knowledge[];
   string headers;
   string result_headers;
   int timeout = 5000;
   int res;

   Print("Requesting JSON from: ", json_url);
   ResetLastError();
   res = WebRequest("GET", json_url, headers, timeout, knowledge, outcome, result_headers);

   if (res == 200)
   {
      Print("JSON downloaded!");
     
      
      string jsonRaw = "";
      int dimension = ArraySize(outcome);
      jsonRaw = CharArrayToString(outcome, 0, dimension);
     
      
      int fileHandle = FileOpen(fileName, FILE_WRITE | FILE_TXT | FILE_ANSI);
      if (fileHandle != INVALID_HANDLE)
      {
         FileWriteString(fileHandle, jsonRaw);
         FileClose(fileHandle);
         Print("JSON saved to file.");

      }
      else
      {
         Print("Didn't open file for writing. Error: ", GetLastError());
      }
   }
   else
    Error: ", GetLastError());
   

}

void OnStart()
{
    DownloadAndParse();
}

The way it works:

• WebRequest() is used to ship a GET request to the desired URL.

• If profitable ( HTTP code 200 ), the JSON content material is retrieved.

• The downloaded knowledge is transformed from a uchar[] array right into a readable string .

• The string is then saved to an area .json file for later use.

Essential notes:

• It’s essential to enable URL entry in your MetaTrader terminal:

• At all times deal with errors rigorously to keep away from surprising failures in your EA or scrip

• You’ll be able to simply combine this obtain methodology into your EA or indicator to fetch the most recent financial occasions robotically.

Obtain file folder: