Smart Cities: IoT, Data, and Public Services

Smart Cities: IoT, Data, and Public Services Smart cities use small devices and the data they collect to run services more smoothly. Sensors in streets, meters in buildings, and apps on phones all share information. The goal is simple: fix problems before they become obvious, and help people move and live better. This approach combines technology with planning and a clear idea of what residents need. IoT devices turn dull numbers into concrete tips for city teams. A network of traffic sensors can adjust lights to ease rush hour. Air and noise sensors track pollution, so officials can act on where to plant trees or slow traffic. Digital maps show where energy is wasted, and help utility crews fix leaks faster. ...

September 21, 2025 · 2 min · 335 words

Building Microservices with API Gateways

Building Microservices with API Gateways An API gateway sits at the edge of a microservices system. It is the single entry point for most clients, handling not just routing but also security, traffic control, and some data shaping. With a gateway in place, teams can evolve individual services without breaking client contracts, while keeping a consistent policy across the system. Core capabilities you’ll commonly see include: Request routing and aggregation: the gateway decides which service to call and can combine data from several services into a single response. Security and access control: token validation, API keys, and rate limits help protect back-end services. Observability and policy: centralized logging, metrics, tracing, and simple rules for retry and timeout. Traffic management: load balancing, canary releases, and circuit breaking protect the system from overload. A typical scenario is an online store. The gateway routes /users to the user service, /catalog to the product service, and /checkout to the order service. It can also attach authentication tokens, enforce quotas, and cache common responses to reduce load on services. ...

September 21, 2025 · 2 min · 380 words

Cloud Native Networking and Service Mesh

Cloud Native Networking and Service Mesh Cloud native networking helps microservices talk to each other safely and reliably in dynamic environments. As services scale, move, or reboot, traditional networking can become brittle. A service mesh adds a dedicated layer to manage this communication without changing application code. Together, they improve security, reliability, and visibility across modern apps. What is cloud native networking? Cloud native networking aligns with container orchestration. It uses virtual networks, service discovery, and policy-driven security to manage east–west traffic and north–south access. The aim is predictable performance, safer deployments, and clearer telemetry for teams. ...

September 21, 2025 · 2 min · 413 words