FastAPI & Next.js project: Flight Booking App With DevOps. Day 1 - 100 - Build Real-Time Dashboards! | Grafana + FastAPI Tutorial | Flight Booking Engine | Day 65

In Day 65, we connect Grafana to our Prometheus datasource to visualize the heartbeat of our Flight Booking Engine. We are taking the raw numbers we collected yesterday and turning them into beautiful, insightful charts. This isn't just about making pretty graphs—it's about Actionable Observability. We will write PromQL queries to track traffic spikes, annotate deployment events, and configure real email alerts so you know when the system is in trouble. 💡 In this live build: Grafana Setup: connecting to Prometheus and navigating the UI. PromQL Mastery: Using rate() and sum() to calculate Request Per Second (RPS) metrics. Building Dashboards: Creating a "Traffic by Endpoint" panel to see which API routes are busiest. Annotations: Marking specific events (like manual tests) directly on the graph. Alerting & SMTP: Configuring email notifications so you get pinged the moment traffic drops or errors spike. By the end, you won't just guess how your app is doing—you'll see it. 📘 Watch the full playlist: 👉 https://www.youtube.com/playlist?list=PLdtwawCR2QjmdfhM-7SzDOVGop373bbgW 📂 GitHub Repo (Public Mirror): 👉 https://github.com/KNehe/aero_bound_ventures-public.git 🔥 Subscribe #FastAPI #Grafana #Prometheus #DevOps #DataVisualization #SRE #SystemDesign