大语言模型工程化服务系列之三--------姜子牙大模型fastapi接口服务

姜子牙大语言模型fastapi接口服务

姜子牙大模型效果还可以，但是如何将它的模型文件部署成自己的服务呢，下面是教程代码

一、安装环境

python 版本 3.7
transformer最新版本

二、姜子牙fastapi接口服务代码

1.服务端代码

代码如下（示例）：

import uvicorn
from fastapi import FastAPI
from pydantic import BaseModel
from transformers import AutoTokenizer
from transformers import LlamaForCausalLM
import torch

app = FastAPI()


class Query(BaseModel):
    text: str


device = torch.device("cuda")

model = LlamaForCausalLM.from_pretrained('IDEA-CCNL/Ziya-LLaMA-13B-v1', device_map="auto")
tokenizer = AutoTokenizer.from_pretrained('IDEA-CCNL/Ziya-LLaMA-13B-v1')


@app.post("/generate_travel_plan/")
async def generate_travel_plan(query: Query):
    inputs = ':' + query.text.strip() + '\n:'

    input_ids = tokenizer(inputs, return_tensors="pt").input_ids.to(device)
    generate_ids = model.generate(
        input_ids,
        max_new_tokens=1024,
        do_sample=True,
        top_p=0.85,
        temperature=1.0,
        repetition_penalty=1.,
        eos_token_id=2,
        bos_token_id=1,
        pad_token_id=0)

    output = tokenizer.batch_decode(generate_ids)[0]
    return {"result": output}


if __name__ == "__main__":
    uvicorn.run(app, host="192.168.138.218", port=7861)

2.调用代码

代码如下（示例）：

import requests

url = "http:/192.168.138.210:7861/generate_travel_plan/"
query = {"text": "帮我写一份去西安的旅游计划"}

response = requests.post(url, json=query)

if response.status_code == 200:
    result = response.json()
    print("Generated travel plan:", result["result"])
else:
    print("Error:", response.status_code, response.text)

---

3.postman curl调用代码

curl --location 'http://192.168.138.210:7861/generate_travel_plan/' \
--header 'accept: application/json' \
--header 'Content-Type: application/json' \
--data '{"text":""}'

---

总结

例如：以上就是今天要讲的内容，本文介绍了姜子牙大语言模型fastapi服务的搭建。
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