Full-stack developer. Two projects below: a multiplayer music game and a record shop.
Two to six players hear a short preview and place the track in their own timeline by release year. It is my final-degree project (TFG), and it is live.
In a live game, placements, timeouts and reconnects can all hit the same room at the same moment. So the server owns the game state: each room handles one action at a time, and turn deadlines run on the server, never in a browser timer.
Well, not really... but I made sure that players can’t check the network tab to gain an advantage. Audio arrives through a short-lived token scoped to the room. The title, artist and year reach the browser only when the round resolves.
Songs can have multiple release dates and online data can be messy... so I created an offline C# tool that compares four sources. A track plays only when two agree within a year, one of them MusicBrainz or Wikidata.
| Source | Year | Agrees |
|---|---|---|
 Spotify | 1992 | No |
 Deezer | 2005 | No |
 MusicBrainz | 1976 | Yes |
 Wikidata | 1976 | Yes |
A storefront for a fictional record shop selling vinyl, CD and cassette: catalog, cart, checkout and a collection of every Record a customer has bought. Payment is simulated.
The cart lives in the browser, so anyone could edit it to pay less. That’s why checkout only sends Record ids and quantities, and the server sets the prices and checks the stock. If one line fails, the whole Order is rejected and no stock is touched.
Nothing charged, no stock reduced
If an Order just pointed at the live Record, changing a price or deleting a Record would rewrite a customer’s history. So every line copies the artist, title, format and price at purchase. I compared the alternatives and wrote the decision up in an ADR.
Hiding a button isn’t enough, because anyone can call the API directly. So the roles are checked twice: route guards in Angular and middleware in the API. The admin manages the catalog, and the cart and checkout stay closed to it.
| Visitor | Customer | Admin | |
|---|---|---|---|
| Cart | Yes | Yes | No |
| Checkout | No | Yes | No |
| Collection | No | Yes | No |
| Manage Records | No | No | Yes |
It started from a static design, my team’s Angular starter and a generic Node backend.
I’m finishing my web application development diploma (CFGS DAW) at Centro San Valero in Zaragoza, after a frontend internship at ALTEN España working in Angular and TypeScript.
These days I’m studying for the AWS Solutions Architect Associate, which is a bit funny, since everything I build ends up on my own VPS anyway. I just like running my own stuff: I self-host a bunch of servers and services, all on Linux, and spend way too much time in dotfiles.
@shezcode · web apps, APIs and dotfiles
Full-stack developer · Zaragoza, Spain