#6 MongoDB + Docker + .NET Change Streams: Real‑Time App Tutorial (Step‑By‑Step)

Learn how to set up MongoDB in Docker, configure a Replica Set, connect using Studio 3T, and build a .NET Core Change Stream Listener that reacts to real‑time database events. This step‑by‑step tutorial is perfect for beginners, backend developers, and anyone building event‑driven microservices. 1. How to Run MongoDB in Docker (Replica Set Enabled) Create a clean Docker Compose file Automatically initialize a replica set Fix common errors like “no replset config has been received” Understand how MongoDB networking works inside Docker 2. How to Connect MongoDB to Studio 3T Correct connection string for replica sets Fix Unknown host: mongo errors Insert and update documents visually Prepare collections for change stream testing 3. How to Build a .NET Core Change Stream Listener Create a Worker Service in .NET Connect to MongoDB replica set Watch collections for real‑time changes Log insert, update, and replace events Handle deserialization issues Build a clean, production‑ready listener loop Code & Tools Used in This Tutorial Docker & Docker Compose MongoDB 7 Studio 3T .NET 8 Worker Service MongoDB.Driver NuGet package Who Is This Tutorial For? .NET Developers Backend Engineers DevOps Engineers Students learning MongoDB Anyone building event‑driven systems If you found this helpful Please LIKE the video, COMMENT your next topic request, and SUBSCRIBE for more backend, database, and DevOps tutorials. #mongodb #docker #studio3t #dotnetcore #dotnet8 #changestreams #microservices #backenddevelopment #devops #mongodbtutorial #dockertutorial #dotnettutorial #eventdrivenarchitecture