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b92b744 57a9a08 b92b744 57a9a08 b92b744 57a9a08 b92b744 0cb871f 57a9a08 b92b744 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 | import asyncio
import json
import logging
from contextlib import asynccontextmanager
from pathlib import Path
from elastic_transport import ConnectionError as ElasticConnectionError
from elasticsearch import ApiError
from fastapi import FastAPI, HTTPException, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import JSONResponse, StreamingResponse
from fastapi.staticfiles import StaticFiles
from app.concepts import ConceptError, ConceptVectorService
from app.config import settings
from app.gapmap_service import GapMapService
from app.llm import LLMService
from app.models import ConceptSearchRequest, MapRequest, NoveltyRequest, SearchRequest
from app.novelty import NoveltyEngine
from app.pipeline import SearchPipeline
from app.repository import ElasticRepository
logger = logging.getLogger(__name__)
@asynccontextmanager
async def lifespan(app: FastAPI):
repo = ElasticRepository()
llm = LLMService()
app.state.repository = repo
app.state.pipeline = SearchPipeline(repo, llm)
app.state.novelty = NoveltyEngine(llm, repo=repo)
app.state.gapmap = GapMapService(repo)
app.state.concepts = ConceptVectorService(repo)
yield
await app.state.novelty.fulltext.close()
await llm.close()
await repo.close()
app = FastAPI(title="nullMap API", version="1.0.0", lifespan=lifespan)
app.add_middleware(
CORSMiddleware,
allow_origins=settings.cors_origins,
allow_methods=["*"],
allow_headers=["*"],
)
@app.get("/health")
@app.get("/api/health", include_in_schema=False)
def health() -> dict[str, str]:
return {"status": "ok"}
@app.get("/ready")
@app.get("/api/ready", include_in_schema=False)
async def ready(request: Request):
try:
elastic = await request.app.state.repository.health()
except Exception as exc:
logger.warning("Elasticsearch readiness: %s", type(exc).__name__)
return JSONResponse(
status_code=503,
content={
"status": "unavailable",
"elasticsearch": {"connected": False},
"message": "Elasticsearch is unavailable. Check ELASTIC_URL and credentials or start the local container.",
},
)
return {
"status": "ready",
"elasticsearch": elastic,
"openaiConfigured": bool(settings.openai_api_key),
"openalexSource": "public_s3_snapshot",
"openalexSnapshotManifest": settings.openalex_snapshot_manifest,
"embeddingsEnabled": settings.embeddings_enabled,
"compressionEnabled": settings.compression_enabled and settings.compression_validated,
}
def search_error(exc: Exception) -> str:
if isinstance(exc, (ApiError, ElasticConnectionError)):
return "Elasticsearch could not complete the search. Check the backend connection and index setup."
return "The evidence search could not complete. Please retry or inspect the backend logs."
@app.post("/search")
@app.post("/api/search", include_in_schema=False)
async def search(body: SearchRequest, request: Request):
try:
return await request.app.state.pipeline.search(body)
except Exception as exc:
logger.error("Search failed: %s", type(exc).__name__)
raise HTTPException(status_code=503, detail=search_error(exc)) from None
@app.post("/search/stream")
@app.post("/api/search/stream", include_in_schema=False)
async def search_stream(body: SearchRequest, request: Request):
async def stream():
queue: asyncio.Queue = asyncio.Queue(maxsize=16)
async def progress(payload):
await queue.put(("progress", payload))
async def run():
try:
result = await request.app.state.pipeline.search(body, progress)
await queue.put(("result", result))
except asyncio.CancelledError:
raise
except Exception as exc:
logger.error("Streamed search failed: %s", type(exc).__name__)
await queue.put(("error", {"message": search_error(exc)}))
task = asyncio.create_task(run())
try:
while True:
if await request.is_disconnected():
break
try:
event, payload = await asyncio.wait_for(queue.get(), timeout=10)
except TimeoutError:
yield ": keepalive\n\n"
continue
yield f"event: {event}\ndata: {json.dumps(payload, allow_nan=False)}\n\n"
if event in ("result", "error"):
break
finally:
task.cancel()
try:
await task
except asyncio.CancelledError:
pass
return StreamingResponse(
stream(),
media_type="text/event-stream",
headers={"Cache-Control": "no-cache", "X-Accel-Buffering": "no"},
)
@app.post("/novelty")
@app.post("/api/novelty", include_in_schema=False)
async def novelty(body: NoveltyRequest, request: Request):
try:
return await request.app.state.novelty.assess(body.hypothesis, body.scan, body.read)
except Exception as exc:
logger.error("Novelty assessment failed: %s", type(exc).__name__)
raise HTTPException(
status_code=503,
detail="The novelty assessment could not complete. Please retry or inspect the backend logs.",
) from None
@app.post("/map")
@app.post("/api/map", include_in_schema=False)
async def gap_map(body: MapRequest, request: Request):
try:
return await request.app.state.gapmap.assess(
idea=body.idea,
arithmetic=body.arithmetic,
cutoff_year=body.cutoffYear,
refresh=body.refresh,
)
except Exception as exc:
logger.error("Gap map failed: %s", type(exc).__name__)
raise HTTPException(
status_code=503,
detail="The evidence map could not be built. Please retry or inspect the backend logs.",
) from None
@app.post("/map/stream")
@app.post("/api/map/stream", include_in_schema=False)
async def gap_map_stream(body: MapRequest, request: Request):
"""The map as it is built: the same payload as ``/map``, plus the states on
the way to it. A cached map arrives as one `result` event with no progress
before it, which is the honest thing for work that did not happen."""
async def stream():
queue: asyncio.Queue = asyncio.Queue(maxsize=32)
async def progress(payload):
await queue.put(("progress", payload))
async def run():
try:
result = await request.app.state.gapmap.stream(
idea=body.idea,
arithmetic=body.arithmetic,
cutoff_year=body.cutoffYear,
refresh=body.refresh,
progress=progress,
)
await queue.put(("result", result))
except asyncio.CancelledError:
raise
except Exception as exc:
logger.error("Streamed gap map failed: %s", type(exc).__name__)
await queue.put(
(
"error",
{
"message": "The evidence map could not be built. "
"Please retry or inspect the backend logs."
},
)
)
task = asyncio.create_task(run())
try:
while True:
if await request.is_disconnected():
break
try:
event, payload = await asyncio.wait_for(queue.get(), timeout=10)
except TimeoutError:
yield ": keepalive\n\n"
continue
yield f"event: {event}\ndata: {json.dumps(payload, allow_nan=False)}\n\n"
if event in ("result", "error"):
break
finally:
task.cancel()
try:
await task
except asyncio.CancelledError:
pass
return StreamingResponse(
stream(),
media_type="text/event-stream",
headers={"Cache-Control": "no-cache", "X-Accel-Buffering": "no"},
)
@app.post("/concepts/search")
@app.post("/api/concepts/search", include_in_schema=False)
async def concept_search(body: ConceptSearchRequest, request: Request):
try:
return await request.app.state.concepts.search(body)
except ConceptError as exc:
raise HTTPException(status_code=exc.status, detail=str(exc)) from None
except Exception as exc:
logger.error("Concept search failed: %s", type(exc).__name__)
raise HTTPException(
status_code=503,
detail="Elasticsearch could not complete the concept search. Check the backend connection and index setup.",
) from None
@app.get("/studies/{study_id:path}")
@app.get("/api/studies/{study_id:path}", include_in_schema=False)
async def study_detail(study_id: str, request: Request):
study = await request.app.state.repository.get(study_id)
if not study or study.get("record_kind") != "study":
raise HTTPException(status_code=404, detail="Study not found")
return {k: v for k, v in study.items() if k not in ("embedding", "attachments")}
if Path(settings.frontend_dist).is_dir():
app.mount("/", StaticFiles(directory=settings.frontend_dist, html=True), name="frontend")
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