Reimplement error-report API endpoint (#6317)

- Removed in previous commit - b8b3dfc90e
- Adds unit tests to ensure it doesn't happen again

InvenTree/InvenTree/exceptions.py

@@ -53,7 +53,10 @@ def log_error(path, error_name=None, error_info=None, error_data=None):
     if error_data:
         data = error_data
     else:
-        data = '\n'.join(traceback.format_exception(kind, info, data))
+        try:
+            data = '\n'.join(traceback.format_exception(kind, info, data))
+        except AttributeError:
+            data = 'No traceback information available'
 
     # Log error to stderr
     logger.error(info)

InvenTree/common/api.py

@@ -668,6 +668,13 @@ common_api_urls = [
             path('', BackgroundTaskOverview.as_view(), name='api-task-overview'),
         ]),
     ),
+    path(
+        'error-report/',
+        include([
+            path('<int:pk>/', ErrorMessageDetail.as_view(), name='api-error-detail'),
+            path('', ErrorMessageList.as_view(), name='api-error-list'),
+        ]),
+    ),
     # Project codes
     path(
         'project-code/',

InvenTree/common/tests.py

@@ -658,6 +658,30 @@ class PluginSettingsApiTest(PluginMixin, InvenTreeAPITestCase):
         ...
 
 
+class ErrorReportTest(InvenTreeAPITestCase):
+    """Unit tests for the error report API."""
+
+    def test_error_list(self):
+        """Test error list."""
+        from InvenTree.exceptions import log_error
+
+        url = reverse('api-error-list')
+        response = self.get(url, expected_code=200)
+        self.assertEqual(len(response.data), 0)
+
+        # Throw an error!
+        log_error(
+            'test error', error_name='My custom error', error_info={'test': 'data'}
+        )
+
+        response = self.get(url, expected_code=200)
+        self.assertEqual(len(response.data), 1)
+
+        err = response.data[0]
+        for k in ['when', 'info', 'data', 'path']:
+            self.assertIn(k, err)
+
+
 class TaskListApiTests(InvenTreeAPITestCase):
     """Unit tests for the background task API endpoints."""