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Building CityScale 🏙️ — Engineering a City-Scale Logistics System

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Building CityScale 🏙️ — Engineering a City-Scale Logistics System
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Devanupriy Jain
I write code. Sometimes it works. Sometimes I write a blog about why it didn't. 💀 Currently surviving CSE while exploring DSA, backend, system design, hackathons, and building questionable ideas into actual projects. Here to learn, build, break, fix, and repeat. git push --force and pray.

What started as an idea to simulate urban parcel distribution turned into CityScale — a full-stack logistics platform for modelling deliveries, locations, routes, and distribution workflows.

🏗️ Architecture

The current stack includes:

  • Java + Spring Boot — backend & REST APIs

  • PostgreSQL — persistent data storage

  • JPA/Hibernate — ORM and entity management

  • Frontend + Maps — visualizing locations and logistics data

The system follows a layered backend structure:

Controller → Service → Repository → Database

This separation keeps API handling, business logic, and persistence independent.

🧠 The interesting part

The core challenge is translating a real-world logistics problem into software.

Given multiple parcels, locations, and routes, the system needs to model relationships between them and eventually support efficient distribution and route decisions.

That means thinking beyond:

request → database → response

and instead considering:

Data modelling → Business rules → Algorithms → APIs → Visualization

I've also had to deal with the less glamorous side of engineering — database configuration, API integration, debugging, and discovering that a perfectly reasonable-looking configuration can completely destroy your evening. 💀

CityScale is still under development, but I'm using it to explore how DSA concepts and backend engineering come together in a real system.

More technical deep-dives coming soon.

Build → Break → Debug → Optimize. 🚀

#java#springboot#backend-developments#backend-development#system-design#dsa#postgresql#software#software-development

Comments (1)

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Devanupriy Jain5d ago

First post on Hashnode! 🎉

CityScale is still a work in progress, and building it has already taught me that turning a real-world problem into software is way harder than it looks. 😅

More technical deep-dives coming soon — especially on the architecture, database design, and parcel distribution algorithms.

Let the building (and debugging) continue. 🚀