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https://github.com/fastapi-practices/fastapi-best-architecture.git
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35 lines
1.2 KiB
Python
35 lines
1.2 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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from fast_captcha import img_captcha
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from fastapi import APIRouter, Depends, Request
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from fastapi_limiter.depends import RateLimiter
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from starlette.concurrency import run_in_threadpool
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from backend.app.admin.schema.captcha import GetCaptchaDetail
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from backend.common.response.response_schema import ResponseSchemaModel, response_base
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from backend.core.conf import settings
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from backend.database.redis import redis_client
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router = APIRouter()
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@router.get(
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'',
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summary='获取登录验证码',
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dependencies=[Depends(RateLimiter(times=5, seconds=10))],
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)
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async def get_captcha(request: Request) -> ResponseSchemaModel[GetCaptchaDetail]:
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"""
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此接口可能存在性能损耗，尽管是异步接口，但是验证码生成是IO密集型任务，使用线程池尽量减少性能损耗
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"""
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img_type: str = 'base64'
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img, code = await run_in_threadpool(img_captcha, img_byte=img_type)
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ip = request.state.ip
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await redis_client.set(
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f'{settings.CAPTCHA_LOGIN_REDIS_PREFIX}:{ip}',
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code,
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ex=settings.CAPTCHA_LOGIN_EXPIRE_SECONDS,
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)
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data = GetCaptchaDetail(image_type=img_type, image=img)
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return response_base.success(data=data)
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