Legacy System ReST API Development
When your Windows client/server system needs web application access

The Legacy Client/Server Problem
Your business runs on Windows client/server applications that work well internally, but:
- Desktop-only access - No web or mobile application capabilities
- Limited remote access - Staff can't work flexibly from any device
- Integration barriers - Other systems can't connect to your data
- Modernization blocked - Can't move to web applications without an API layer
You need a professional ReST API to bridge your legacy database to modern web applications.
Our REST API Development Service
30+ years building enterprise APIs that connect legacy systems to modern applications.
✅ Legacy System Analysis - Understand your current client/server architecture
✅ API Architecture Design - Secure, performant REST endpoints for your data
✅ Security Implementation - Authentication, authorization, and data protection
✅ Performance Optimization - Fast response times even with legacy databases
✅ Cloud Deployment - Deploy to your preferred cloud platform
✅ Complete Documentation - Technical specs and integration guides
✅ Integration Testing - Ensure your new API works perfectly with existing systems
Our Process
Step 1: Client/server system analysis and API requirements
Step 2: REST API design and security architecture
Step 3: Development and performance testing
Step 4: Cloud deployment and documentation
Prerequisites
If your database needs modernizing first, we start with database re-engineering before API development.
After REST API Development
Once your API is live, we connect it to Flexiva so your users get professional web and mobile applications immediately.
Consultancy
Daily Rate: £750 - £950 per day
Typical Timeline: 3 - 4 weeks for standard implementations
Ready to Add Web Access to Your Legacy System?
📞 Call
+44 1223 77 22 80 - Speak to an API development expert
Professional REST APIs that unlock your legacy data for modern business applications.