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Create app.py
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app.py
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from fastapi import FastAPI
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from pydantic import BaseModel
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from huggingface_hub import hf_hub_download
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from llama_cpp import Llama
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# Definição do modelo de dados de entrada
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class Question(BaseModel):
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text: str
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# Inicializando o FastAPI
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app = FastAPI()
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# Download e configuração do modelo
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model_name_or_path = "FabioSantos/llama3_1_fn"
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model_basename = "unsloth.Q8_0.gguf"
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model_path = hf_hub_download(repo_id=model_name_or_path, filename=model_basename)
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print(model_path)
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lcpp_llm = Llama(
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model_path=model_path,
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n_threads=2,
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n_batch=512,
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n_gpu_layers=-1,
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n_ctx=4096,
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)
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prompt_template = "Responda as questões.\nHuman: {prompt}\nAssistant:\n"
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def get_response(text: str) -> str:
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prompt = prompt_template.format(prompt=text)
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response = lcpp_llm(
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prompt=prompt,
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max_tokens=256,
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temperature=0.5,
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top_p=0.95,
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top_k=50,
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stop=[''], # Parada dinâmica quando esse token é detectado.
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echo=True # Retorna o prompt
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)
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return response['choices'][0]['text'].split('Assistant:\n')[1]
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# Endpoint para receber uma questão e retornar a resposta
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@app.post("/ask")
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def ask_question(question: Question):
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response = get_response(question.text)
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return {"response": response}
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# Executa a aplicação
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if __name__ == "__main__":
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import uvicorn
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uvicorn.run(app, host="0.0.0.0", port=8000)
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