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[Programming Help] - Help With Building Custom Study

View Count: 219

[2024-06-19 22:51:41]
[Go To First Post]
limitlesstrevor - Posts: 3
I am trying to build a custom study that will send post data to a python script when a trade I entered or exited on Sierra chart, and I am getting error codes when I try to build it.

These are the error codes:

C:\SierraChart\ACS_Source\chickwasodpasda.cpp(34): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(34): note: Concatenating suffix 'type' with suffix 'entry'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(34): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(34): note: Concatenating suffix 'type' with suffix 'symbol'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(34): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(34): note: Concatenating suffix 'type' with suffix 'price'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(34): error C3688: invalid literal suffix 'type'; literal operator or literal operator template 'operator ""type' not found
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): note: Concatenating suffix 'type' with suffix 'exit'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): note: Concatenating suffix 'type' with suffix 'symbol'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): note: Concatenating suffix 'type' with suffix 'entry_price'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): note: Concatenating suffix 'type' with suffix 'exit_price'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): note: Concatenating suffix 'type' with suffix 'points'
C:\SierraChart\ACS_Source\chickwasodpasda.cpp(51): error C3688: invalid literal suffix 'type'; literal operator or literal operator template 'operator ""type' not found

This is the code in the file I selected:

#include "sierrachart.h"
#include "scstructures.h"
SCDLLName("HTTP POST Example")
// Global variables to track trade entry and exit
float tradeEntryPrice = 0.0f; // Use 'f' for float literals
bool inTrade = false;
// Custom study function
SCSFExport scsf_HTTPPOSTExample(SCStudyInterfaceRef sc)
{
if (sc.SetDefaults)
{
sc.GraphName = "HTTP POST Example";
sc.AutoLoop = 1;
return;
}
// Define the URL of your Flask application endpoint
SCString URL = "http://127.0.0.1:5000/trade"; // Replace with your server's IP and port
// Fetch the symbol
SCString symbol = sc.GetChartSymbol(sc.ChartNumber);
// Get trade position data
s_SCPositionData PositionData;
if (!sc.GetTradePosition(PositionData))
{
// Handle error if unable to get position data
sc.AddMessageToLog("Failed to get trade position data", 1);
return;
}
// Check if there is an open position
if (PositionData.PositionQuantity != 0 && !inTrade)
{
tradeEntryPrice = static_cast<float>(PositionData.AveragePrice); // Explicitly cast to float
inTrade = true;
// Construct the POST data for entry
SCString POSTData = "{ "type": "entry", "symbol": "" + symbol + "", "price": "" + std::to_string(tradeEntryPrice) + "" }";
// Headers (if needed)
SCString Headers = "Content-Type: application/json";
// Make the HTTP POST request for entry
sc.MakeHTTPRequest(POSTData + Headers);
// Log the result
SCString logMessage = "HTTP POST Entry result: ";
sc.AddMessageToLog(logMessage, 0);
}
// Check if the position is closed
if (PositionData.PositionQuantity == 0 && inTrade)
{
float tradeExitPrice = static_cast<float>(sc.Close[sc.Index]); // Example: Exit using the current close price
inTrade = false;
// Calculate profit or loss in points
float profitLossPoints = tradeExitPrice - tradeEntryPrice;
// Construct the POST data for exit
SCString POSTData = "{ "type": "exit", "symbol": "" + symbol + "", "entry_price": "" + std::to_string(tradeEntryPrice) + "", "exit_price": "" + std::to_string(tradeExitPrice) + "", "points": "" + std::to_string(profitLossPoints) + "" }";
// Headers (if needed)
SCString Headers = "Content-Type: application/json";
// Make the HTTP POST request for exit
sc.MakeHTTPRequest(POSTData + Headers);
// Log the result
SCString logMessage = "HTTP POST Exit result: ";
sc.AddMessageToLog(logMessage, 0);
}
}

Would love some help with what I need to change in the code to fix this, thanks!
[2024-06-19 23:49:29]
[Go To First Post]
limitlesstrevor - Posts: 3
C:\SierraChart\ACS_Source\bruhplease.cpp(12): error C3680: cannot concatenate user-defined string literals with mismatched literal suffix identifiers
C:\SierraChart\ACS_Source\bruhplease.cpp(12): note: Concatenating suffix 'type' with suffix 'symbol'
C:\SierraChart\ACS_Source\bruhplease.cpp(12): error C3688: invalid literal suffix 'type'; literal operator or literal operator template 'operator ""type' not found
C:\SierraChart\ACS_Source\bruhplease.cpp(14): error C3688: invalid literal suffix 'price'; literal operator or literal operator template 'operator ""price' not found
C:\SierraChart\ACS_Source\bruhplease.cpp(18): error C3688: invalid literal suffix 'entry_price'; literal operator or literal operator template 'operator ""entry_price' not found
C:\SierraChart\ACS_Source\bruhplease.cpp(22): error C3688: invalid literal suffix 'exit_price'; literal operator or literal operator template 'operator ""exit_price' not found

Now I just have these errors, with the following code:

#include "sierrachart.h"
#include "scstructures.h"
#include <sstream>
#include <string>
#include <iomanip>

SCDLLName("HTTP POST Example")

// Helper function to construct JSON string
SCString constructJSON(const std::string& typeStr, const char* symbolStr, float priceVal, float entryPriceVal = 0.0f, float exitPriceVal = 0.0f) {
std::stringstream ss;
ss << "{ "type": "" << typeStr << "", "symbol": "" << symbolStr << """;
if (priceVal != 0.0f) {
ss << ", "price": "" << std::fixed << std::setprecision(2) << priceVal << """;
}
std::string entryPriceString;
if (entryPriceVal != 0.0f) {
entryPriceString = ", "entry_price": "" + std::to_string(entryPriceVal) + """;
}
std::string exitPriceString;
if (exitPriceVal != 0.0f) {
exitPriceString = ", "exit_price": "" + std::to_string(exitPriceVal) + """;
}
ss << entryPriceString << exitPriceString;
ss << " }";
return SCString(ss.str().c_str()); // Convert std::string to SCString
}

// Global variables to track trade entry and exit
float tradeEntryPrice = 0.0f; // Use 'f' for float literals
bool inTrade = false;

// Custom study function
SCSFExport scsf_HTTPPOSTExample(SCStudyInterfaceRef sc)
{
if (sc.SetDefaults)
{
sc.GraphName = "HTTP POST Example";
sc.AutoLoop = 1;
return;
}

// Define the URL of your Flask application endpoint
SCString URL = "http://127.0.0.1:5000/trade"; // Replace with your server's IP and port

// Fetch the symbol
SCString symbol = sc.GetChartSymbol(sc.ChartNumber);

// Get trade position data
s_SCPositionData PositionData;
if (!sc.GetTradePosition(PositionData))
{
// Handle error if unable to get position data
sc.AddMessageToLog("Failed to get trade position data", 1);
return;
}

// Check if there is an open position
if (PositionData.PositionQuantity != 0 && !inTrade)
{
tradeEntryPrice = static_cast<float>(PositionData.AveragePrice); // Explicitly cast to float
inTrade = true;

// Construct the POST data for entry
SCString POSTData = constructJSON("entry", symbol.GetChars(), tradeEntryPrice);

// Headers (if needed)
SCString Headers = "Content-Type: application/json";

// Make the HTTP POST request for entry
sc.MakeHTTPRequest(POSTData + Headers);

// Log the result
SCString logMessage = "HTTP POST Entry result: ";
sc.AddMessageToLog(logMessage, 0);
}

// Check if the position is closed
if (PositionData.PositionQuantity == 0 && inTrade)
{
float tradeExitPrice = static_cast<float>(sc.Close[sc.Index]); // Example: Exit using the current close price
inTrade = false;

// Calculate profit or loss in points
float profitLossPoints = tradeExitPrice - tradeEntryPrice;

// Construct the POST data for exit
SCString POSTData = constructJSON("exit", symbol.GetChars(), tradeEntryPrice, tradeExitPrice, profitLossPoints);

// Headers (if needed)
SCString Headers = "Content-Type: application/json";

// Make the HTTP POST request for exit
sc.MakeHTTPRequest(POSTData + Headers);

// Log the result
SCString logMessage = "HTTP POST Exit result: ";
sc.AddMessageToLog(logMessage, 0);
}
}

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