feat: added server and db config

server/utils/env.go

@@ -0,0 +1,33 @@
+package utils
+
+import (
+	"os"
+	"strconv"
+)
+
+// Gets value from environment or uses default value
+func GetEnvOrDefault[T string | int | bool | float64](key string, defaultValue T) T {
+    value, exists := os.LookupEnv(key)
+    if !exists {
+        return defaultValue
+    }
+
+    // Handle conversion based on the type of defaultValue
+    switch any(defaultValue).(type) {
+    case string:
+        return any(value).(T)
+    case int:
+        if intValue, err := strconv.Atoi(value); err == nil {
+            return any(intValue).(T)
+        }
+    case bool:
+        if boolValue, err := strconv.ParseBool(value); err == nil {
+            return any(boolValue).(T)
+        }
+    case float64:
+        if floatValue, err := strconv.ParseFloat(value, 64); err == nil {
+            return any(floatValue).(T)
+        }
+    }
+    return defaultValue // return default value if conversion fails
+}