Ethanfel
783da171e7
NiceGUI's ui.image with a local file path fails to register static files when inside a ui.dialog, showing alt text instead of the image. Added /api/image-preview?path=... endpoint that streams the file via FileResponse, and updated frame path thumbnails to use this URL. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
114 lines
4.1 KiB
Python
114 lines
4.1 KiB
Python
"""REST API endpoints for ComfyUI to query project data from JSON files.
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All endpoints are read-only. Mounted on the NiceGUI/FastAPI server.
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"""
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import logging
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import time
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from pathlib import Path
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from typing import Any
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from fastapi import HTTPException, Query
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from fastapi.responses import FileResponse
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from nicegui import app
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from db import ProjectDB
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from utils import load_json, KEY_BATCH_DATA, KEY_SEQUENCE_NUMBER
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logger = logging.getLogger(__name__)
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# The DB instance is set by register_api_routes()
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_db: ProjectDB | None = None
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def register_api_routes(db: ProjectDB) -> None:
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"""Register all REST API routes with the NiceGUI/FastAPI app."""
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global _db
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_db = db
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app.add_api_route("/api/projects", _list_projects, methods=["GET"])
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app.add_api_route("/api/projects/{name}/files", _list_files, methods=["GET"])
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app.add_api_route("/api/projects/{name}/files/{file_name}/sequences", _list_sequences, methods=["GET"])
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app.add_api_route("/api/projects/{name}/files/{file_name}/data", _get_data, methods=["GET"])
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app.add_api_route("/api/projects/{name}/files/{file_name}/keys", _get_keys, methods=["GET"])
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app.add_api_route("/api/image-preview", _serve_image, methods=["GET"])
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def _get_db() -> ProjectDB:
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if _db is None:
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raise HTTPException(status_code=503, detail="Database not initialized")
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return _db
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def _list_projects() -> dict[str, Any]:
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db = _get_db()
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projects = db.list_projects()
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return {"projects": [p["name"] for p in projects]}
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def _list_files(name: str) -> dict[str, Any]:
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db = _get_db()
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files = db.list_project_files(name)
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return {"files": [{"name": f["name"], "data_type": f["data_type"]} for f in files]}
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def _list_sequences(name: str, file_name: str) -> dict[str, Any]:
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db = _get_db()
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seqs = db.list_project_sequences(name, file_name)
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return {"sequences": seqs}
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def _load_sequences(name: str, file_name: str) -> list[dict]:
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"""Load the batch_data list directly from the JSON file."""
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db = _get_db()
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proj = db.get_project(name)
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if not proj:
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raise HTTPException(status_code=404, detail=f"Project '{name}' not found")
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json_path = Path(proj["folder_path"]) / f"{file_name}.json"
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if not json_path.exists():
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raise HTTPException(status_code=404, detail=f"File '{file_name}' not found in project '{name}'")
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data, _ = load_json(json_path)
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return data.get(KEY_BATCH_DATA, [])
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def _get_data(name: str, file_name: str, seq: int = Query(default=1)) -> dict[str, Any]:
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t0 = time.perf_counter()
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sequences = _load_sequences(name, file_name)
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match = next((s for s in sequences if int(s.get(KEY_SEQUENCE_NUMBER, 0)) == seq), None)
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if match is None:
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raise HTTPException(status_code=404, detail=f"Sequence {seq} not found")
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logger.info("API _get_data %s/%s seq=%d (%d keys): %.3fs",
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name, file_name, seq, len(match), time.perf_counter() - t0)
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return match
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def _get_keys(name: str, file_name: str, seq: int = Query(default=1)) -> dict[str, Any]:
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t0 = time.perf_counter()
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sequences = _load_sequences(name, file_name)
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match = next((s for s in sequences if int(s.get(KEY_SEQUENCE_NUMBER, 0)) == seq), None)
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if match is None:
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raise HTTPException(status_code=404, detail=f"Sequence {seq} not found")
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keys = [k for k in match.keys() if k != KEY_SEQUENCE_NUMBER]
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types = []
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for k in keys:
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v = match[k]
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if isinstance(v, bool):
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types.append("BOOLEAN")
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elif isinstance(v, int):
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types.append("INT")
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elif isinstance(v, float):
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types.append("FLOAT")
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else:
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types.append("STRING")
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total = len(sequences)
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logger.info("API _get_keys %s/%s seq=%d (%d keys): %.3fs",
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name, file_name, seq, len(keys), time.perf_counter() - t0)
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return {"keys": keys, "types": types, "total_sequences": total}
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def _serve_image(path: str = Query(...)) -> FileResponse:
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p = Path(path)
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if not p.exists() or not p.is_file():
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raise HTTPException(status_code=404, detail="Image not found")
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return FileResponse(str(p))
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