diff --git a/keycloak/keycloak_openid.py b/keycloak/keycloak_openid.py
index ca4d9ae..cd5c2e4 100644
--- a/keycloak/keycloak_openid.py
+++ b/keycloak/keycloak_openid.py
@@ -30,6 +30,7 @@ from .connection import ConnectionManager
 from .exceptions import raise_error_from_response, KeycloakGetError, \
     KeycloakRPTNotFound, KeycloakAuthorizationConfigError, KeycloakInvalidTokenError
 from .urls_patterns import (
+    URL_AUTH,
     URL_TOKEN,
     URL_USERINFO,
     URL_WELL_KNOWN,
@@ -156,7 +157,10 @@ class KeycloakOpenID:
 
         :return:
         """
-        return NotImplemented
+        params_path = {"authorization-endpoint": self.well_know()['authorization_endpoint'],
+                       "client-id": self.client_id,
+                       "redirect-uri": redirect_uri}
+        return URL_AUTH.format(**params_path)
 
     def token(self, username="", password="", grant_type=["password"], code="", redirect_uri=""):
         """
diff --git a/keycloak/urls_patterns.py b/keycloak/urls_patterns.py
index 8746fda..cc9d587 100644
--- a/keycloak/urls_patterns.py
+++ b/keycloak/urls_patterns.py
@@ -29,6 +29,7 @@ URL_LOGOUT = "realms/{realm-name}/protocol/openid-connect/logout"
 URL_CERTS = "realms/{realm-name}/protocol/openid-connect/certs"
 URL_INTROSPECT = "realms/{realm-name}/protocol/openid-connect/token/introspect"
 URL_ENTITLEMENT = "realms/{realm-name}/authz/entitlement/{resource-server-id}"
+URL_AUTH = "{authorization-endpoint}?client_id={client-id}&response_type=code&redirect_uri={redirect-uri}"
 
 # ADMIN URLS
 URL_ADMIN_USERS = "admin/realms/{realm-name}/users"