first release 0.1.1

src/json_settings.cpp

@@ -41,6 +41,12 @@ expected<AppSettings, string> AppSettings::loadAppSettings() {
         return unexpected("'services' array in JSON file is empty");
     }
 
+    if (j.contains("httpPort")) {
+        settings.httpPort = j["httpPort"].get<int>();
+    } else {
+        settings.httpPort = {};
+    }
+    
     return settings;
 }
 

src/json_settings.h

@@ -5,6 +5,7 @@
 #include <string>
 #include <expected>
 #include <optional>
+#include <cstdint>
 
 struct Service {
     std::string name;
@@ -17,6 +18,7 @@ struct AppSettings {
     std::optional<std::string> getId(std::string_view name);
 
     std::vector<Service> services;
+    std::optional<uint16_t> httpPort;
 };
 
 #endif // JSON_SETTINGS_H

src/main.cpp

@@ -3,6 +3,7 @@
 #include <sstream>
 #include <cstdlib>
 #include <string>
+#include <print>
 #include <optional>
 #include "json_settings.h"
 #include "htmx_helper.h"
@@ -68,5 +69,19 @@ int main() {
         return crow::response{row.htmx()};
     });    
 
-    app.port(8080).multithreaded().run();
+    const uint16_t defaultPort = 3010;
+    uint16_t httpPort = defaultPort;
+
+    {
+        auto opt_settings = AppSettings::loadAppSettings();
+        if (opt_settings.has_value()){
+            auto& settings = opt_settings.value();
+            httpPort = settings.httpPort.value_or(defaultPort);
+        } else {
+            CROW_LOG_ERROR << "failed to load settings : " << opt_settings.error();
+        }
+    }
+
+    app.loglevel(crow::LogLevel::INFO);
+    app.port(httpPort).multithreaded().run();
 }