mubashirtech56/expense-tracker

How mubashirtech56/expense-tracker works

Friends Expense Manager is a collaborative expense-splitting web app for friends and groups. Users sign in, manage shared expenses and settlements, and view personal or group balances; administrators also manage members, group settings, and audit activity. The browser controller coordinates the UI, authentication, and data access, while Supabase provides persistence and authentication. The README documents realtime sync and PWA/offline support. Some feature implementations were not sampled, so those documented capabilities are shown without speculative internal call paths.

Main entry points: script.js App controller · api.js Data access and sync · auth.js Authentication · index.ts Create member function

Components 19

Web application

App interface index.html
App controller js/script.js
Offline shell public/sw.js

Identity and access

Authentication js/auth.js
Login ID normalization js/slugify.js
Supabase client setup js/supabase.js

Expense management

Data access and sync js/api.js
Offline state cache js/api.js
Expenses and settlements js/script.js
Member administration js/script.js
Group settings and audit js/script.js
Data backups js/script.js

Supabase services

PostgreSQL with RLS supabase/schema.sql
Supabase Auth js/supabase.js
Create member function supabase/functions/create-friend/index.ts
Delete member function supabase/functions/delete-friend/index.ts
Reset password function supabase/functions/reset-password/index.ts
Supabase Realtime

Other components

Friend or admin

Connections 22

Friend or admin → App interface: uses README.md
App interface → App controller: renders README.md
App controller → Authentication: uses js/script.js
App controller → Data access and sync: calls js/script.js
App controller → Expenses and settlements: coordinates README.md
App controller → Member administration: provides README.md
App controller → Group settings and audit: provides README.md
App controller → Data backups: provides README.md
Authentication → Supabase client setup: uses js/auth.js
Authentication → Login ID normalization: normalizes IDs js/auth.js
Authentication → Supabase Auth: authenticates js/auth.js
Data access and sync → Supabase client setup: uses js/api.js
Data access and sync → Offline state cache: caches state js/api.js
Data access and sync → PostgreSQL with RLS: reads and writes README.md
Data access and sync → Create member function: invokes js/api.js
Create member function → Supabase Auth: creates users supabase/functions/create-friend/index.ts
Create member function → PostgreSQL with RLS: inserts profiles supabase/functions/create-friend/index.ts
Delete member function → PostgreSQL with RLS: updates profiles supabase/functions/delete-friend/index.ts
App controller → Delete member function: admin actions
App controller → Reset password function: admin actions
Supabase Realtime → Data access and sync: syncs changes README.md
Offline shell → App interface: serves offline shell public/sw.js

Drawn by GitDiagram on November 14, 2026 from the repository's file tree, README and source files. Read as Markdown ·