这是我的密码:
from typing import List
from fastapi import FastAPI, File, UploadFile
import asyncio
import concurrent.futures
app = FastAPI()
@app.post("/send_images")
async def update_item(
files: List[UploadFile] = File(...),
):
return {"res": len(files)}
我向该服务器发送请求时使用(这些特定URL仅在此处举例):
import requests
import os
import json
import numpy as np
import time
import io
import httpx
import asyncio
from datetime import datetime
import pandas as pd
from random import shuffle
import pandas as pd
import urllib
import io
from PIL import Image
from matplotlib import pyplot as plt
import concurrent.futures
urls = ['https://sun9-63.userapi.com/c638920/v638920705/1a54d/xSREwpakJD4.jpg',
'https://sun9-28.userapi.com/c854024/v854024084/1160d8/LDMVHYgguAw.jpg',
'https://sun9-54.userapi.com/c854220/v854220084/111f66/LdcbEpPR6tg.jpg',
'https://sun9-40.userapi.com/c841420/v841420283/4c8bb/Mii6GSCrmpo.jpg',
'https://sun6-16.userapi.com/CPQpllJ0KtaArvQKkPsHTZDCupqjRJ_8l07ejA/iyg2hRR_kM4.jpg',
'https://sun9-1.userapi.com/c638920/v638920705/1a53b/SMta6Bv-k7s.jpg',
'https://sun9-36.userapi.com/c857332/v857332580/56ad/rJCGKFw03FQ.jpg',
'https://sun6-14.userapi.com/iPsfmW0ibE8RsMh0k2lUFdRxHZ4Q41yctB7L3A/ajJHY3WN6Xg.jpg',
'https://sun9-28.userapi.com/c854324/v854324383/1c1dc3/UuFigBF7WDI.jpg',
'https://sun6-16.userapi.com/UVXVAT-tYudG5_24FMaBWTB9vyW8daSrO2WPFQ/RMjv7JZvowA.jpg']
os.environ['NO_PROXY'] = '127.0.0.1'
async def request_get_4(list_urls):
async with httpx.AsyncClient() as client:
r = httpx.post("http://127.0.0.1:8001/send_images", files={f'num_{ind}': el for ind, el in enumerate(list_urls)})
print(r.text)
return r
async def request_get_3(url):
async with httpx.AsyncClient() as client:
return await client.get(url)
from collections import defaultdict
async def main():
start = datetime.now()
tasks = [asyncio.create_task(request_get_3(url)) for url in urls[0:10]]
result = await asyncio.gather(*tasks)
data_to_send = []
for ind, resp in enumerate(result):
if resp.status_code == 200:
image_bytes = io.BytesIO(resp.content)
image_bytes.seek(0)
data_to_send.append(image_bytes)
end = datetime.now()
print(result)
print(len(data_to_send))
batch_size = 2
batch_num = len(data_to_send) // batch_size
tasks = [asyncio.create_task(request_get_4(data_to_send[i * batch_size: (i+1) * batch_size])) for i in range(batch_num)]
result = await asyncio.gather(*tasks)
left_data = data_to_send[batch_size*(batch_num):]
print(len(left_data))
print(result)
asyncio.run(main())
我试图加载包含在URL中的图像,然后将它们成批地发送到FastAPI服务器。但它不起作用。 我得到以下错误:
{"detail":[{"loc":["body","files"],"msg":"field required","type":"value_error.missing"}]}
如何解决我的问题并能够通过httpx将多个文件发送到FastAPI
问题是HTTPX 0.13.3不支持多文件上载,因为此参数需要字典,并且字典不能具有相同的键值
我们可以使用这个pull请求https://github.com/encode/httpx/pull/1032/files来解决这个问题(现在它还可以接受List[Tuple[str,FileTypes]])
更新: 这个问题现在解决了
更新2: 在这里,我展示了如何将httpx用于不同的请求:
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