Insufficient validation in ` /api/v1/projects/{project_pk}/features/{feature_pk}/mv-options/`

Description

KeyError: 'default_percentage_allocation'
(9 additional frame(s) were not displayed)
...
  File "features/multivariate/views.py", line 89, in create
    return super().create(request, *args, **kwargs)
  File "features/multivariate/serializers.py", line 68, in validate
    total_sibling_percentage_allocation + attrs["default_percentage_allocation"]

Contributor guide

Tech stack

pythondjango

Domain

backendapi

Issue type

bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

2

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

under 1 hour

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

fresh

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

Basic Django REST Framework knowledge

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

70

Research direction

Examine the `validate` method in `features/multivariate/serializers.py` around line 68. The error indicates that `default percentage allocation` is missing from `attrs`, likely due to insufficient validation or missing field. Check if the serializer ensures the key exists before accessing it. Consider adding a `.get()` with a default or validating presence in the request data.