NutriNET

A free, open-source mobile app for tracking daily nutrition and discovering recipes — built as a learning project exploring full-stack mobile development with .NET.

Features

• Log meals and track daily calories, protein, carbs and fat
• Browse and search a community food database
• Scan barcodes to instantly log packaged foods
• Create, publish, rate, and comment on recipes
• Share recipes via deep links — tapping the link opens directly in the app
• Follow other users and build saved recipe lists
• Android home screen widgets for calories, protein, carbs, fat and a daily summary
• Full localization support with English and Bulgarian

Roles

User

• Request foods to be added (up to 3 pending at a time)
• Apply to become a moderator

Moderator

• Accept or decline food requests
• Add and edit foods
• Apply temporary comment restrictions to users
• View restriction history

Admin

• Everything moderators can do
• Delete foods (if unused)
• Delete users
• End restrictions early
• Accept or decline moderator requests
• Demote moderators

Architecture

Four projects arranged in a one-way dependency chain: Maui → Api → Services → Data.

Project	Role	Key packages
NutriNET.Data	Entities, migrations, DB context	EntityFrameworkCore, MySql.EntityFrameworkCore
NutriNET.Services	Business logic	—
NutriNET.Api	ASP.NET Core REST API	JwtBearer, ImageSharp, Resend
NutriNET.Maui	Mobile frontend	CommunityToolkit.Mvvm, Syncfusion.Maui.Toolkit, ZXing.Net.Maui, Microcharts.Maui
NutriNET.Tests	Unit tests	NUnit, EF Core InMemory

Configuration

API — appsettings.json

The API applies migrations automatically on startup. Fill in all fields before running:

{
  "Jwt": {
    "Secret": "",
    "Issuer": "https://api.nutrinet.com",
    "Audience": "NutriNet-api"
  },
  "Share": {
    "Secret": ""
  },
  "ConnectionStrings": {
    "DefaultConnection": ""
  },
  "App": {
    "BaseUrl": ""
  },
  "Resend": {
    "ApiKey": "",
    "SenderEmail": "onboarding@resend.dev",
    "SenderName": "NutriNET"
  }
}

MAUI — MauiProgram.cs

Set the API base URL in the two AddHttpClient calls:

client.BaseAddress = new Uri("https://your-api-url");

Android deep linking — MainActivity.cs

Set the API domain in the intent filter so recipe share links open the app correctly:

DataHost = "your-api-domain.com"