获取所有“接受"消息Flask的标题 [英] Get all "Accept" headers from Flask

问题描述

一个客户端将多个Accept标头发送到我的Flask应用.但是， request.headers('accept')仅返回最后一个设置的标头.如何查看Accept标头的所有值，以便可以提供最新版本的API?

A client sends multiple Accept headers to my Flask app. However, request.headers('accept') return only the last set header. How can I see all values for the Accept header so that I can serve the latest version of my API?

推荐答案

request.headers 是

request.headers is a MultiDict, which provides the getlist method to get all the values for a given key.

request.headers.getlist('accept')

默认的 Request 类 parses接受标头为更有用的形式.由于您特别关心accept标头，因此请改用这些属性.

The default Request class parses accept headers into more useful forms. Since you specifically care about the accept headers, use these attributes instead.

if request.accept_mimetypes.accept_json:
    ...

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