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API: Add fallback if model isn't loaded

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Most endpoints require the model to be loaded, so add a depends.

Signed-off-by: kingbri <bdashore3@proton.me>
This commit is contained in:
kingbri
2023-11-16 12:20:35 -05:00
parent c0525c042e
commit d8d61fa19b
1 changed files with 10 additions and 12 deletions
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22
main.py
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@@ -32,6 +32,10 @@ app = FastAPI()
model_container: Optional[ModelContainer] = None
config: dict = {}
def _check_model_container():
if model_container is None or model_container.model is None:
raise HTTPException(400, "No models are loaded.")
# Model list endpoint
@app.get("/v1/models", dependencies=[Depends(check_api_key)])
@app.get("/v1/model/list", dependencies=[Depends(check_api_key)])
@@ -47,11 +51,8 @@ async def list_models():
return models.json()
# Currently loaded model endpoint
@app.get("/v1/model", dependencies=[Depends(check_api_key)])
@app.get("/v1/model", dependencies=[Depends(check_api_key), Depends(_check_model_container)])
async def get_current_model():
if model_container is None or model_container.model is None:
return HTTPException(400, "No models are loaded.")
model_card = ModelCard(id=model_container.get_model_path().name)
return model_card.json()
@@ -98,18 +99,15 @@ async def load_model(data: ModelLoadRequest):
return EventSourceResponse(generator())
# Unload model endpoint
@app.get("/v1/model/unload", dependencies=[Depends(check_admin_key)])
@app.get("/v1/model/unload", dependencies=[Depends(check_admin_key), Depends(_check_model_container)])
async def unload_model():
global model_container
if model_container is None:
raise HTTPException(400, "No models are loaded.")
model_container.unload()
model_container = None
# Encode tokens endpoint
@app.post("/v1/token/encode", dependencies=[Depends(check_api_key)])
@app.post("/v1/token/encode", dependencies=[Depends(check_api_key), Depends(_check_model_container)])
async def encode_tokens(data: TokenEncodeRequest):
tokens = model_container.get_tokens(data.text, None, **data.get_params())[0].tolist()
response = TokenEncodeResponse(tokens=tokens, length=len(tokens))
@@ -117,7 +115,7 @@ async def encode_tokens(data: TokenEncodeRequest):
return response.json()
# Decode tokens endpoint
@app.post("/v1/token/decode", dependencies=[Depends(check_api_key)])
@app.post("/v1/token/decode", dependencies=[Depends(check_api_key), Depends(_check_model_container)])
async def decode_tokens(data: TokenDecodeRequest):
message = model_container.get_tokens(None, data.tokens, **data.get_params())
response = TokenDecodeResponse(text=message)
@@ -125,7 +123,7 @@ async def decode_tokens(data: TokenDecodeRequest):
return response.json()
# Completions endpoint
@app.post("/v1/completions", dependencies=[Depends(check_api_key)])
@app.post("/v1/completions", dependencies=[Depends(check_api_key), Depends(_check_model_container)])
async def generate_completion(request: Request, data: CompletionRequest):
model_path = model_container.get_model_path()
@@ -151,7 +149,7 @@ async def generate_completion(request: Request, data: CompletionRequest):
return response.json()
# Chat completions endpoint
@app.post("/v1/chat/completions", dependencies=[Depends(check_api_key)])
@app.post("/v1/chat/completions", dependencies=[Depends(check_api_key), Depends(_check_model_container)])
async def generate_chat_completion(request: Request, data: ChatCompletionRequest):
model_path = model_container.get_model_path()