FastAPI & Next.js project: Flight Booking App With DevOps. Day 1 - 100 - Monitor FastAPI with Prometheus! | Real-Time Metrics | Flight Booking Engine | Day 64

You can’t improve what you don’t measure. 📉 In Day 64, we stop flying blind. We are integrating Prometheus into our Flight Booking Engine to track real-time metrics like request latency, error rates, and memory usage. We aren't just installing a library; we are building a pull-based monitoring system. Instead of the app pushing data out, we configure Prometheus to "scrape" our FastAPI container every 15 seconds. 💡 In this live build: Instrumentation: Using prometheus-fastapi-instrumentator to automatically track every HTTP request. The /metrics Endpoint: Exposing internal app data in a format Prometheus understands. Prometheus Config: Writing the Prometheus. yml to define scrape intervals and targets. Docker Networking: Wiring Prometheus to talk to fastapi-app inside the container network. Visualization: Verifying the data stream in the Prometheus UI. By the end, you’ll see exactly how your API performs under the hood. 📘 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 to master production engineering with FastAPI. #FastAPI #Prometheus #DevOps #Monitoring #Docker #Python #SRE