8386196653
Modular-monolith backend over SQLAlchemy (SQLite by default, Postgres-ready
via DATABASE_URL). The full snapshot.json is stored verbatim; diffing reads it
back through the ams.diff engine, so the DB never mirrors the snapshot schema.
- ams.api.db/models/schemas/service : Game 1-N Snapshot, sha256-deduped upsert
- routes: POST/GET /games, POST/GET /snapshots (import, deduped), GET /diff
(?old&new[&owner]) running compute_diff on stored snapshots, /health
- ams.api.importer : bulk CLI loader (python -m ams.api.importer --game ...)
- run: uvicorn ams.api.app:create_app --factory
11 tests pass (6 diff + 5 API via TestClient over the golden pair). Smoke-tested
live on uvicorn: import -> /snapshots -> /diff returns the BlooMoo deltas.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
31 lines
918 B
Python
31 lines
918 B
Python
from __future__ import annotations
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from typing import Any
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from fastapi import APIRouter, Depends, HTTPException, Query
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from sqlalchemy.orm import Session
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from ...diff import compute_diff, filter_by_owner
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from ...snapshot import Snapshot
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from .. import models
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from ..db import get_db
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router = APIRouter(tags=["diff"])
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@router.get("/diff")
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def get_diff(
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old: int = Query(..., description="older snapshot id"),
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new: int = Query(..., description="newer snapshot id"),
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owner: str | None = Query(None, description="restrict to one class, e.g. CMC_Animo"),
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db: Session = Depends(get_db),
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) -> dict[str, Any]:
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a = db.get(models.Snapshot, old)
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b = db.get(models.Snapshot, new)
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if a is None or b is None:
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raise HTTPException(404, "snapshot not found")
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diff = compute_diff(Snapshot(a.data), Snapshot(b.data))
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if owner:
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diff = filter_by_owner(diff, owner)
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return diff
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