openfoodfacts/smooth-app

Nutrition facts: check values before sending them

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#4,446 opened on Aug 4, 2023

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data qualitygood first issuenutrition facts✏️ Editing - Nutrition input🎯 P1

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Description

Hi everyone,

Currently, we don't check what is in the nutrition screen, whereas on the website we have multiple checks.

Tasks

  • Ensure the relation between kJ / kCal is correct
  • Energy should not exceed 3800 kJ
  • Fat should not exceed 100g (if it's per 100g)
  • Saturated fat should not exceed fat
  • Carbohydrates should not exceed 100g (if it's per 100g)
  • Sugars fat should not exceed carbohydrates
  • Fibers should not exceed 100g (if it's per 100g)
  • Proteins should not exceed 100g (if it's per 100g)
  • Compute sodium / salt
  • Generally speaking, all items shouldn't exceed 100g, it's per 100g

Contributor guide

Research direction
Implement validation for nutrition facts fields as listed in the tasks, using existing website checks as reference.
Tech stack
dart
Domain
mobile
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
DartFlutter
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65