IoT Temperature Monitoring API
Enterprise middleware platform that bridges wireless IoT sensor networks with cloud systems, enabling real-time food safety compliance monitoring for large-scale food service operations across hundreds of school districts.
The Challenge
A large enterprise serving hundreds of school districts needed to modernize their food safety monitoring infrastructure. Their wireless sensor networks generated critical temperature data, but lacked integration with their cloud-based management platform.
- •Proprietary sensor protocols incompatible with modern REST APIs
- •No centralized visibility into gateway and sensor health across sites
- •Manual device configuration creating operational bottlenecks
- •Compliance risk from gaps in temperature monitoring data
The organization required a robust middleware solution that could translate between their sensor infrastructure and cloud platform while providing comprehensive device management capabilities.
The Digital Asset
We developed a Spring Boot REST API middleware platform that serves as the intelligent bridge between wireless IoT sensor networks and cloud management systems. The platform handles real-time data collection, device management, and seamless cloud synchronization.
Key Capabilities
- Real-time temperature and environmental sensor data collection
- Gateway management with network configuration and health monitoring
- Sensor registration, calibration, and threshold configuration
- Automatic cloud synchronization via GraphQL integration
- Battery level monitoring and predictive maintenance alerts
- Complete audit trail with timestamped readings and events
Business Impact
Continuous Compliance
24/7 automated temperature monitoring ensures food safety compliance across all storage locations, with instant alerts for threshold violations.
Unified Device Management
Centralized control of all gateways and sensors through a single API, eliminating manual configuration and reducing operational overhead.
Seamless Integration
Bridges legacy sensor protocols with modern cloud infrastructure, enabling real-time data flow without replacing existing hardware investments.
Proactive Maintenance
Battery monitoring and device health tracking enable predictive maintenance, preventing sensor failures before they impact compliance.
Technical Highlights
- Platform: Spring Boot 3.x with Java 23 for high-performance REST API development
- Protocol Bridge: TCP/UDP server translating proprietary sensor protocols to REST endpoints
- Cloud Integration: OAuth2-secured GraphQL client for bidirectional cloud synchronization
- Data Persistence: MySQL database with optimized schemas for time-series sensor readings
- Deployment: Dockerized with automated CI/CD pipeline for zero-downtime updates
- Documentation: OpenAPI/Swagger specification for complete API discoverability
Why Spring Boot for IoT Integration?
This project showcases Spring Boot's strength in enterprise IoT middleware development. The platform handles thousands of sensor readings while maintaining sub-second response times for device management operations.
The result: continuous food safety compliance, unified device management, and seamless cloud integration—built on a robust, scalable foundation that protects the organization's compliance posture across hundreds of school districts.