Three defects behind "selecting my own Transfer List listing opens no dialog".
Pressing the card emits NO HTTP at all, so the gate is a field in what we already
return -- the client decides locally from the auction record.
1. OWNERSHIP FIELDS (FIFA17-HISTORICAL). FIFA 17 auctionInfo carries `tradeOwner`
(bool), `sellerId` and `offers`; we emitted none of them. `tradeOwner` is the
purpose-built "this auction is mine" flag, and without it the Transfer List has
nothing to key owner actions (Remove / Re-list) on. `sellerId` now carries the
configured persona so it agrees with `tradeOwner` and `sellerName` instead of
telling three different stories. Persona is threaded from config, never baked in.
2. `GET …/trade/status` ANSWERED EMPTY (CONFIRMED from our own live logs). The
Transfer List polls this continuously to refresh live auction state. The tail has
no numeric id, so it fell through `t.starts_with("trade")` into the buy/view arm,
where `trade_id_from_path` fails and the reply is `{"auctionInfo": []}`. The
client asked for the state of its own listings and was repeatedly told there was
none. Now a real handler: `tradeIds` filter, or the whole active pile unfiltered;
unknown ids are absent rather than an error, so a poll never fails closed.
3. PLAIN `DELETE …/trade/<id>` WAS A SILENT NO-OP. Contemporaneous FIFA 17 clients
cancel via `DELETE /ut/game/<sku>/trade/<id>`; only the oracle's
`/ut/delete/game/…` spelling mapped to MarketCancel, so the plain form landed in
the buy/view arm and "cancelled" nothing while returning 200. Both spellings now
map to MarketCancel. Kept the oracle spelling: the differential exercises it.
Why the differential missed all of this: our record's key set was IDENTICAL to the
oracle's, so parity was green. The oracle omits the ownership fields too, because
its own remove flow was never driven by a real client either. The differential now
asserts we COVER every oracle key and that our extra keys are EXACTLY
{offers, sellerId, tradeOwner} -- so an unexplained new divergence still fails,
while the deliberate superset is pinned.
Deliberately NOT changed (no evidence): itemState stays "listFS", expires stays
3600 seconds-remaining, bidState stays "none" for active/unbid, counts stays
count=1, and no FIFA 18+ price fields were added.
332 tests pass, 0 failed, clippy clean. Deployed and verified live: tradeOwner=true
sellerId=33068179 sellerName='CAGE' offers=0 on /tradePile AND /trade/status
(filtered and unfiltered).
OpenFUT
Offline Ultimate Team — like SPT, but for FIFA 23.
OpenFUT replaces EA's retired FUT servers with a fully offline, single-player backend. You own FIFA 23 legitimately. You just want to keep playing after EA shut down the servers.
Repositories
| Repo | Purpose |
|---|---|
openfut-core |
Game-independent offline FUT backend |
openfut-bridge |
FIFA 23 integration layer + reverse-engineering proxy |
Architecture
FIFA 23 client
│
▼
┌─────────────────┐
│ openfut-bridge │ ← intercepts FUT traffic, maps routes, logs unknown
└────────┬────────┘
│
▼
┌─────────────────┐
│ openfut-core │ ← offline FUT backend: profiles, packs, squads, SBCs
└─────────────────┘
│
▼
SQLite database
Core is game-independent. It speaks a clean REST API and knows nothing about FIFA 23 internals.
Bridge is FIFA-specific. It speaks FIFA 23's wire protocol and translates it into Core API calls. Bridge is where all reverse engineering work happens.
Current Status
| Feature | Status |
|---|---|
| Local profiles + clubs | ✅ Working |
| Coin system | ✅ Working |
| Pack generator | ✅ Working |
| Card collection | ✅ Working |
| Squad builder | ✅ Working |
| Objectives engine | ✅ Working |
| SBC engine | ✅ Working |
| Match rewards | ✅ Working |
| NPC transfer market | ✅ Working |
| Statistics | ✅ Working |
| FIFA 23 integration | 🔴 Reverse engineering in progress |
| Chemistry calculation | 🟡 In progress |
| Full Draft mode | 🟡 In progress |
| Squad Battles AI generator | 🟡 In progress |
| Objectives claim flow | 🟡 In progress |
Running
# Start the offline backend
cd openfut-core
cargo run
# Start the proxy (for traffic capture / FIFA integration)
cd openfut-bridge
cargo run
Core listens on http://127.0.0.1:8080 by default.
Bridge listens on http://127.0.0.1:8443 by default.
Design Principles
- Offline-first. No EA account required. No internet connection needed.
- Single-player only. This is not a multiplayer server emulator.
- Data-driven. All cards, packs, SBCs, and objectives are JSON files. Everything is moddable.
- Clean architecture. Core has zero knowledge of FIFA 23. Bridge has zero game logic.
- No copyrighted assets. No real player images, no EA trademarks in data files.
Disclaimer
This project is not affiliated with EA Sports. You must own FIFA 23 legitimately to use this software. This project does not bypass any ownership verification and is intended only to restore offline playability of a game whose online services have been retired.