实行期权HttpVerb [英] Implementing Options HttpVerb

问题描述

我想接受一个角度的网站选择请求。每一个端点（注册，登录等）需要接受的选项HTTP动词。

I want to accept options requests from an angular website. Every endpoint (signup, login etc) needs to accept the options http verb.

我会再添加以下的响应头。

I will then add the following to the response header.

   After += ctx =>
                    {
                        ctx.Response.WithHeader("Access-Control-Allow-Origin", "*");
                        ctx.Response.WithHeader("Access-Control-Allow-Headers", "accept, client-token, content-type");
                        ctx.Response.WithHeader("Access-Control-Allow-Methods", "POST, GET");
                        ctx.Response.WithHeader("Access-Control-Max-Age", "30758400");
     };

什么我不想做的就是添加一个额外的路由每个端点像

What i dont want to do is add an extra route for every endpoint like

    Post[path + "Login"] = x => Login();
    Options[path + "Login"] = x => Login();

这是群众的样板code。

This would be masses of boilerplate code.

有没有一种方法，我可以拦截任何选项要求使用通配符路径，使我所有的终端都能接受的选择要求？

Is there a way i can intercept any options request using a wildcard route so that all my endpoints can accept options requests?

推荐答案

南希具有选项的要求，即一个用户定义的选项隐含路线路线尚未确定。请参见 OptionsRoute ，以供参考。

Nancy has implicit routes for OPTIONS requests, i.e. a user defined OPTIONS route has not been defined. See OptionsRoute for reference.

如果你想为选项自定义行为的要求，你可以交替添加 AfterRequest 挂钩：

If you want custom behavior for OPTIONS requests, you could alternatively add a AfterRequest hook:

protected override void ApplicationStartup(TinyIoCContainer container, IPipelines pipelines)
{
    pipelines.AfterRequest += ctx =>
    {
        // This will always be called at the end of the request
        if (ctx.Request.Method.Equals("OPTIONS", StringComparison.Ordinal))
        {
            ctx.Response.WithHeader("Access-Control-Allow-Origin", "*");
            ctx.Response.WithHeader("Access-Control-Allow-Headers", "accept, client-token, content-type");
            ctx.Response.WithHeader("Access-Control-Allow-Methods", "POST, GET");
            ctx.Response.WithHeader("Access-Control-Max-Age", "30758400");
        }
    }
}

不过，我真的不知道为什么你不仅会CORS头文件添加到选项的反应？

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