调用Flask REST API的/api/create_account端点时出现404错误

我正在开发一个对接Docker化MySQL数据库的Flask REST API，访问根路径/一切正常，但用cURL请求/api/create_account端点时始终返回404错误。

请求详情 #

cURL命令：

curl --location 'http://localhost:5000/api/create_account' \
--header 'Content-Type: application/json' \
--data-raw '{
  "username": "new_username",
  "email": "new_email@example.com",
  "password": "new_password"
}'

错误响应 #

<!doctype html>
<html lang=en>
<title>404 Not Found</title>
<h1>Not Found</h1>
<p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>

已完成的排查步骤 #

• 确认Flask应用中已正确定义/api/create_account的POST路由
• 修改代码后已重启Flask服务器
• 验证应用内其他端点均可正常访问
• 确认所有Docker容器处于同一网络

相关代码片段 #

Flask路由代码（/api/create_account） #

@app.route('/api/create_account', methods=['POST'])
def create_account():
    data = request.get_json()
    username = data.get('username')
    email = data.get('email')
    password = data.get('password')

    hashed_password = hash_password(password)
    write_to_Users('unique_google_id', username, email, 'UName', '2003-03-05', 'Male', 'Sample School')
    return jsonify(message='Account created successfully'), 200

Dockerfile #

FROM python:3.8
EXPOSE 5000
WORKDIR /app
COPY requirements.txt /app
RUN pip install -r requirements.txt
COPY app.py /app
CMD python app.py

恳请各位帮忙分析/api/create_account端点出现404错误的原因，如需更多信息或代码片段，请告知。

内容的提问来源于stack exchange，提问作者Sirben