One Backend for a Multi-Branch Fitness Operator
How memberships, attendance, and billing for a multi-branch fitness operator moved from disconnected tools onto one backend, one API, and one source of truth.
Business Context
The problem space and success criteria
Branch teams tracked members, attendance, and invoices in separate systems and reconciled them by hand. Every new branch or client app multiplied the problem.
Project goals
- Make the backend the single source of truth for members, schedules, and billing
- Capture attendance in real time from on-site hardware
- Automate invoicing and financial reconciliation with the ERP
- Expose one documented API for web and mobile clients
Technical Response
How the delivery was structured
Solution
Consolidated the business rules into Laravel domain services behind a versioned REST API, added a Node.js WebSocket service for live attendance events, and integrated payments and the ERP so invoicing no longer depends on manual entry.
Architecture
Laravel REST API → MySQL → Node.js WebSocket service (live attendance events) → ERP & payment integrations → Vue/Nuxt web client and mobile clients on the same API → AWS
Outcomes
Lead result
A single source of truth across branches
- Live attendance instead of end-of-day reconciliation
- Invoicing and reconciliation automated end to end
- One API reused by web and mobile clients
FAQ
Frequently Asked Questions
Questions that usually come up when reviewing the implementation, migration approach, or delivery timeline.
Related
Related project context
Supporting links that help place this case study in a broader delivery or hiring conversation.
Linked Project
Fitness Club Management Platform
Public website, multi-branch operations backend, and API layer for a fitness club operator.
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Laravel Development
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SaaS Development
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