From d658e5d918417217a7e60d093803eec85e4e45fd Mon Sep 17 00:00:00 2001
From: Ana Albuquerque <ana.albuquerque@incognia.com>
Date: Thu, 19 Sep 2024 13:30:36 -0300
Subject: [PATCH] Add a singleton metaclass for IncogniaAPI

---
 incognia/api.py       | 3 ++-
 incognia/singleton.py | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 incognia/singleton.py

diff --git a/incognia/api.py b/incognia/api.py
index 8814d60..c4c4339 100644
--- a/incognia/api.py
+++ b/incognia/api.py
@@ -6,11 +6,12 @@
 from .exceptions import IncogniaHTTPError, IncogniaError
 from .json_util import encode
 from .models import Coordinates, StructuredAddress, TransactionAddress, PaymentValue, PaymentMethod
+from .singleton import Singleton
 from .token_manager import TokenManager
 from .base_request import BaseRequest, JSON_CONTENT_HEADER
 
 
-class IncogniaAPI:
+class IncogniaAPI(metaclass=Singleton):
     def __init__(self, client_id: str, client_secret: str):
         self.__token_manager = TokenManager(client_id, client_secret)
         self.__request = BaseRequest()
diff --git a/incognia/singleton.py b/incognia/singleton.py
new file mode 100644
index 0000000..399f727
--- /dev/null
+++ b/incognia/singleton.py
@@ -0,0 +1,7 @@
+
+class Singleton(type):
+    _instances = {}
+    def __call__(cls, *args, **kwargs):
+        if cls not in cls._instances:
+            cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
+        return cls._instances[cls]
\ No newline at end of file