Make requests' Session persistent in ConnectionManager

Signed-off-by: Çağrı Ulaş <cagriulas@gmail.com>

keycloak/connection.py

@@ -45,6 +45,7 @@ class ConnectionManager(object):
         self._headers = headers
         self._timeout = timeout
         self._verify = verify
+        self._s = requests.Session()
 
     @property
     def base_url(self):
@@ -134,7 +135,7 @@ class ConnectionManager(object):
         """
 
         try:
-            return requests.get(urljoin(self.base_url, path),
+            return self._s.get(urljoin(self.base_url, path),
                                params=kwargs,
                                headers=self.headers,
                                timeout=self.timeout,
@@ -154,7 +155,7 @@ class ConnectionManager(object):
             HttpError: Can't connect to server.
         """
         try:
-            return requests.post(urljoin(self.base_url, path),
+            return self._s.post(urljoin(self.base_url, path),
                                 params=kwargs,
                                 data=data,
                                 headers=self.headers,
@@ -175,7 +176,7 @@ class ConnectionManager(object):
             HttpError: Can't connect to server.
         """
         try:
-            return requests.put(urljoin(self.base_url, path),
+            return self._s.put(urljoin(self.base_url, path),
                                params=kwargs,
                                data=data,
                                headers=self.headers,
@@ -196,7 +197,7 @@ class ConnectionManager(object):
             HttpError: Can't connect to server.
         """
         try:
-            return requests.delete(urljoin(self.base_url, path),
+            return self._s.delete(urljoin(self.base_url, path),
                                   params=kwargs,
                                   headers=self.headers,
                                   timeout=self.timeout,