初始化项目

Dockerfile

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+FROM python:3.8.6-slim as build
+
+RUN mkdir /install
+
+WORKDIR /install
+
+COPY requirements.txt .
+
+RUN sed -i s@/deb.debian.org/@/mirrors.aliyun.com/@g /etc/apt/sources.list
+
+RUN apt-get update \
+    && apt-get install gcc -y \
+    && apt-get clean
+
+RUN pip install -r requirements.txt   -i https://mirrors.aliyun.com/pypi/simple/ --prefix=/install
+
+# 应用启动
+FROM python:3.8.6-slim
+
+COPY --from=build /install /usr/local
+
+COPY . /app
+
+WORKDIR /app
+
+ENV FAST_API_ENV=dev
+
+CMD ["/usr/local/bin/uvicorn", "main:fast_api_app", "--reload", "--host", "0.0.0.0", "--port", "8000"]

app.py

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+
+from fastapi import FastAPI
+
+app = FastAPI()
+

docker-compose.yml

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+version: "3.5"
+services:
+    wx_app_backend:
+        build: .
+        image: "wx_app_backend"
+        container_name: "wx_app_backend"
+        restart: always
+        ports:
+            - "18000:8000"

src/api/index.py

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+from fastapi import APIRouter
+from src.utils.sign import check_signature
+
+
+router = APIRouter()
+
+Token = "aaa356"
+
+
+@router.get('/')
+async def get_index(signature:str, timestamp: str, nonce: str, echostr: str):
+    ok = check_signature(signature, timestamp, nonce, Token)
+    if not ok:
+        return "微信公众号接入校验失败!"
+    return echostr
+
+

src/utils/sign.py

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+import hashlib
+
+def check_signature(signature, timestamp, nonce, token):
+    """
+    校验签名
+    :param signature:
+    :param timestamp:
+    :param nonce:
+    :param token:
+    """
+    unsign_str = "".join(sorted([timestamp, nonce, token]))
+    signed_str = hashlib.sha1(unsign_str).digest()
+    if signature == signed_str:
+        return True
+    else:
+        return False