使用 Sinatra 创建仅接受特定内容类型的路由
我正在尝试使用 Sinatra 创建一条仅接受带有 Content-type: application/json 的 POST 的路由，但没有成功。
我的方法如下：
post '/dogs', :provides => :json do
# returns here a json response
end
用curl测试，我看到:provides =>; :json 配置路由以使用 Content-Type: application/json 进行响应。
没错，因为我还想用 JSON 消息响应 POST 请求，但我确实需要该路由仅响应带有 Content-Type: application/json 的 POST 请求，而不是，例如，给其他人（例如Content-Type：application/xml）。
Sinatra 有什么方法可以限制路由只接受特定 Content-Type 的请求吗？
I'm trying to create a route with Sinatra that only accepts POST with an Content-type: application/json without success.
My approach is as follows:
post '/dogs', :provides => :json do
# returns here a json response
end
Testing with curl, I have seen that :provides => :json configures the route to respond with an Content-Type: application/json.
That's right because I want also to respond with a JSON message to the POST request but I really need that this route only respond to POST requests with a Content-Type: application/json and not, for example, to others (e.g. Content-Type: application/xml).
Is there any way in Sinatra to restrict the route to only accept requests with a certain Content-Type?
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评论（3）
请求不包含“Content-Type”标头，而是包含“Accept”。 Sinatra 基本上应该只响应包含“application/json”的“Accept”请求。只是为了确保：
Requests do not contain "Content-Type" header, but rather have "Accept". Sinatra should basically only respond to requests with "Accept" containing "application/json". Just to make sure:
阅读此
http://rack.rubyforge.org/doc/classes/Rack/Request.html
request.content_type会告诉您Phil 对于 RFC 的看法可能是正确的，但实际上很多事情都会在 POST 请求中放入内容类型，因此了解它是什么很有用。
Read this
http://rack.rubyforge.org/doc/classes/Rack/Request.html
request.content_typewill tell youPhil might be right regarding RFC but in reality many things put a content-type in a POST request, therefore it is useful to know what it is.
我认为它是这样的：
i would think it is something like: