Uslužionica API

Backend for a Serbian services marketplace — where clients find providers, agree on the job, and pay part of it in platform tokens.

ASP.NET Core 8 Web API with 77 REST endpoints, two SignalR hubs, EF Core against SQL Server, Redis for caching and coordination, and a search engine built for Serbian text.

Start here

Architecture — layers, startup, request lifecycle
Domain model — 20 entities and the rules they encode
API reference — every endpoint, with access levels

The interesting parts

Search engine — four tiers, diacritics, Cyrillic, typos
Token economy — earning, spending, anti-abuse
Scaling & caching — Redis that never becomes a dependency
Decisions — eight ADRs with the reasoning

At a glance


77 REST endpoints	across 15 controllers, JWT-secured, role-aware
2 SignalR hubs	encrypted chat and push notifications over WebSockets
20 EF Core entities	10 migrations, SQL Server, 188 seeded service categories
4-tier search	diacritic-, script- and typo-tolerant Serbian text search
227 tests	83.4% line coverage, gated in CI, real SQL Server via Testcontainers
2 deploy targets	Hetzner (production) and Azure App Service, both automated

Code reference

The code reference is generated directly from the source. Note that inline documentation comments are written in Serbian, the project's working language — the hand-written documentation above is the English counterpart.

Repository

github.com/djuk1ca/UsluzionicaServer