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Telegram4MQL Sample Implementation of TelegramGetUpdates
//+------------------------------------------------------------------+
//| get_updates_example_1_1.mq4 |
//| steven england |
//| https://Telegram4MQL.steven-england.info |
//+------------------------------------------------------------------+
#property copyright "steven england"
#property link "https://Telegram4MQL.steven-england.info"
#property version "1.00"
#import "Telegram4Mql.dll"
string TelegramGetUpdates(string apiKey,string validUsers,bool confirmUpdates);
#import
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void OnInit()
{
Sample();
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void Sample() // this entry point is only for testing
{
// Your config parameters here
// The api key of your telegram bot:
string apikey="<YOUR API KEY>";
// The chat ID that shall be able to remote control your Expert Advisor (can be more than one, see the doc for more information).
string chatid="<YOUR CHAT ID>";
/*
Now let us assume that you queried Telegram with the following command:
string sampleUpdateString = TelegramGetUpdates(apikey, chatid, true);
What might have returned the following string with these meanings:
0 = No error occured during update call
4 = The number of messages received. MUST NOT be of the same count like the following commands, because only commands from valid users were received.
command list: Texts separated by semicolon, each starting with slash followed by command and maybe further arguments.
It is completely up to you to define commands and values/arguments, Telegram4MQL only passes these texts you sent from your phone to your Telegram Bot through to Metatrader.
The only requirement is, that the command MUST start with a slash.
*/
string sampleUpdateString="0|4|/stopTrades arg1,arg2,arg3;/doTrade arg1,arg2";
string sepFields="|"; // A separator as a character
ushort u_sepFields; // The code of the separator character
string fields[]; // An array to get strings
// Get the separator code
u_sepFields=StringGetCharacter(sepFields,0);
// Split the string to substrings
int j=StringSplit(sampleUpdateString,u_sepFields,fields);
if(fields[0]!="0")
{
HandleError(fields[0]);
}
string sepCommands=";";
ushort u_sepCommands;
string commands[];
u_sepCommands=StringGetCharacter(sepCommands,0);
int k=StringSplit(fields[2],u_sepCommands,commands);
PrintFormat("Strings obtained: %d. Used separator '%s' with the code %d",k,sepCommands,u_sepCommands);
// Now do something with the commands
if(k>0)
{
for(int i=0;i<k;i++)
{
CommandRouter(commands[i]);
}
}
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void CommandRouter(string commandLine)
{
int commandEndPos=StringFind(commandLine," ");
string command=StringSubstr(commandLine,0,commandEndPos);
string argumentLine=StringSubstr(commandLine,commandEndPos+1);
string sep=",";
ushort u_sep;
string arguments[];
u_sep=StringGetCharacter(sep,0);
int k=StringSplit(argumentLine,u_sep,arguments);
Print("Processing command ",command);
if(command=="/stopTrades")
StopAllTrades(arguments);
if(command=="/doTrade")
DoTrade(arguments);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void StopAllTrades(string arguments[])
{
// here you might implement a routine that stops all trades
Print("Will now stop all trades with these arguments!");
for(int i=0;i<ArraySize(arguments);i++)
{
Print(arguments[i]);
}
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void DoTrade(string arguments[])
{
// here you might implement a routine that executes a trade
Print("Will now execute a trade with these arguments!");
for(int i=0;i<ArraySize(arguments);i++)
{
Print(arguments[i]);
}
}
//+------------------------------------------------------------------+
void HandleError(string errorNumber)
{
Print("Handling an error ... ");
}
//+------------------------------------------------------------------+
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