[SDK] Fix list_artifact_tags function (#631)

mlrun/db/base.py

@@ -156,8 +156,9 @@ def list_projects(
     def get_project(self, name: str) -> schemas.Project:
         pass
 
-    def list_artifact_tags(self, project):
-        return []
+    @abstractmethod
+    def list_artifact_tags(self, project=None):
+        pass
 
     @abstractmethod
     def create_feature_set(

mlrun/db/filedb.py

@@ -611,6 +611,9 @@ def list_pipelines(
     ) -> mlrun.api.schemas.PipelinesOutput:
         raise NotImplementedError()
 
+    def list_artifact_tags(self, project=None):
+        raise NotImplementedError()
+
 
 def make_time_pred(since, until):
     if not (since or until):

mlrun/db/httpdb.py

@@ -346,6 +346,14 @@ def del_artifacts(self, name=None, project=None, tag=None, labels=None, days_ago
         error = "del artifacts"
         self.api_call("DELETE", "artifacts", error, params=params)
 
+    def list_artifact_tags(self, project=None):
+        project = project or default_project
+        error_message = f"Failed listing artifact tags. project={project}"
+        response = self.api_call(
+            "GET", f"/projects/{project}/artifact-tags", error_message
+        )
+        return response.json()
+
     def store_function(self, function, name, project="", tag=None, versioned=False):
         params = {"tag": tag, "versioned": versioned}
         project = project or default_project

mlrun/db/sqldb.py

@@ -160,7 +160,7 @@ def list_functions(self, name=None, project=None, tag=None, labels=None):
             self.db.list_functions, self.session, name, project, tag, labels
         )
 
-    def list_artifact_tags(self, project):
+    def list_artifact_tags(self, project=None):
         return self._transform_db_error(
             self.db.list_artifact_tags, self.session, project
         )