ServiceStack 在发送客户端之前拦截请求 [英] ServiceStack intercept requests before they are sent client side

问题描述

我为 servicestack 实现了自定义 HMAC 身份验证(示例显示 这里).正如链接底部的建议，我想做这样的客户端:

I have implemented a custom HMAC authentication for servicestack (example shown here). As suggested at the bottom of the link, I wanted to do something like this client side:

var client = new JsonServiceClient();

client.LocalHttpWebRequestFilter +=
    delegate(HttpWebRequest request)
        {
            // ContentType still null at this point so we must hard code it
            // Set these fields before trying to create the token!
            request.ContentType = ServiceStack.Common.Web.ContentType.Json;
            request.Date = DateTime.Now;

            var secret = "5771CC06-B86D-41A6-AB39-9CA2BA338E27";
            var token = ApiSignature.CreateToken(request, secret);
            request.Headers.Add(ApiCustomHttpHeaders.UserId, "1");
            request.Headers.Add(ApiCustomHttpHeaders.Signature, token);
        };

为从此客户端发送到 API 的每个请求附加身份验证标头.然而 LocalHttpWebRequestFilter 似乎不再是 JsonServiceClient 的属性.有没有其他方法可以实现这一目标?

which appends the authentication headers for every request sent to the API from this client. However LocalHttpWebRequestFilter doesn't seem to be a property of JsonServiceClient anymore. Is there an alternative to achieve this?

推荐答案

我找到了解决方案.而不是使用LocalHttpWebRequestFilter，只需要使用RequestFilter.最终的解决方案如下所示:

I found a solution for this. Instead of using LocalHttpWebRequestFilter, need to just use RequestFilter. The final solution looks like this:

var client = new JsonServiceClient();

client.RequestFilter +=
  delegate(HttpWebRequest request)
    {
        // ContentType still null at this point so we must hard code it
        // Set these fields before trying to create the token!
        request.ContentType = ServiceStack.Common.Web.ContentType.Json;
        request.Date = DateTime.Now;

        var secret = "5771CC06-B86D-41A6-AB39-9CA2BA338E27";
        var token = ApiSignature.CreateToken(request, secret);
        request.Headers.Add(ApiCustomHttpHeaders.UserId, "1");
        request.Headers.Add(ApiCustomHttpHeaders.Signature, token);
    };

此处提供解决方案的功劳:ServiceStack JsonServiceClient - 未发送自定义 HTTP 标头

Credit for the solution here: ServiceStack JsonServiceClient - Custom HTTP Headers not sent

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