Python Connexion —控件“类型"输入400响应错误 [英] Python Connexion — Control "Type" Key in 400 Response Errors

问题描述

我正在使用 connexion ，这是一个REST API的python库，带有一个粗略的定义.对于实际的请求，它可以正常工作，但是当出现错误情况(例如，验证失败)时，它将返回类似以下的响应:

I'm using connexion, a python library for REST API's, with a swagger definition. It's working properly for the actual requests, but when there is an error condition, such as validation fails, it returns a response like:

{
  "type": "about:blank",
  "title": "Bad Request",
  "status": 400,
  "detail": "None is not of type 'string'"
} 

标题，状态和详细信息都很好并且很有意义，但是我有办法控制 type 键的值，以便我可以提供更多有用的信息，而不是简单地使用 about:空白在那里?

The title, status and detail all are good and make sense, but is there a way for me to control the type key's value so that I can provide more helpful information rather than simply having about:blank in there?

在后台，连接似乎使用了请求和烧瓶，所以也许我可以利用它们吗?

Under the hood, it appears that connexion uses requests and flask, so maybe there is something I can leverage from them?

推荐答案

我从未使用过底层框架，但是通过快速扫描，该模块公开了Flask应用程序的构造函数.这样，您就可以将您的swagger文件定义为一个新应用

I have never worked with the underlying framework, but with a quick scan, the module exposes the Flask application constructor. With that, you can define a new app with your swagger file as

app = connexion.App(__name__, specification_dir='swagger/')

，然后添加自定义错误处理程序.例如，您可以执行400错误

and then add custom error handlers. For example for the 400 error you can do

from flask import jsonify

@app.errorhandler(400)
def page_not_found(e):
    custom_data = {
        'type': 'Advanced type'
        # etc
    }
    return jsonify(custom_data)

在此处

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