Request的中断和ErrorHandler实例解析

from flask import jsonify
from . import main

@main.errorhandler(404)
def error_404(error):
  """这个handler可以catch住所有abort(404)以及找不到对应router的处理请求"""
  response = dict(status=0, message="404 Not Found")
  return jsonify(response), 404

@main.errorhandler(Exception)
def error_500(error):
  """这个handler可以catch住所有的abort(500)和raise exeception."""
  response = dict(status=0, message="500 Error")
  return jsonify(response), 400

class MyError(Exception):
  """自定义错误类"""
  pass

@main.errorhandler(MyError)
def MyErrorHandle(error):
  response = dict(status=0, message="400 Error")
  return jsonify(response), 400

from . import auth


@auth.app_errorhandler(404)
def error_404(error):
  response = dict(status=0, message="404 Not Found")
  return jsonify(response), 404