如何使用IHttpActionResult设置标题 [英] How to set header using IHttpActionResult

问题描述

我想将令牌添加到webapi请求的标头中. 我怎样才能做到这一点 ?

i want to add token to header for webapi request. how can i do this ?

这是我的示例代码

public IHttpActionResult Authenticate(Login data)
            {
                var Token = "fdsf123546fskjhf-gsuyuhsh";

                //here add these token to header

                return ?
            }

谢谢.

推荐答案

1. 您可以使用 ResponseMessageResult 类:

public IHttpActionResult Authenticate(Login data)
{
    var Token = "fdsf123546fskjhf-gsuyuhsh";

    var response = new HttpResponseMessage();

    response.Headers.Add("Authentication", Token);

    return new ResponseMessageResult(response);
}

或创建自己的结果类:

Or create your own result class:

public class HeaderActionResult : IHttpActionResult
{
    private Tuple<string, string> header;

    public HeaderActionResult(Tuple<string, string> header) 
    {
        this.header = header;
    }

    public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken) 
    {
        var response = new HttpResponseMessage();

        response.Headers.Add(header.Item1, header.Item2);

        return Task.FromResult<HttpResponseMessage>(response);
    }
}

public IHttpActionResult Authenticate(Login data)
{
    var Token = "fdsf123546fskjhf-gsuyuhsh";

    return new HeaderActionResult(Tuple.Create("Authentication", Token));
}

或使用扩展方法将标头添加到任何现有的IHttpActionResult对象:

Or add a header to any existing IHttpActionResult object using an extension method:

public static class HttpActionResultExtensions
{
    public static IHttpActionResult AddHeader(this IHttpActionResult actionResult, string name, string value)
    {
        return new HeaderActionResult(actionResult, name, value);
    }

    private class HeaderActionResult : IHttpActionResult
    {
        private readonly IHttpActionResult actionResult;

        private string name;

        private string value;

        public HeaderActionResult(IHttpActionResult actionResult, string name, string value)
        {
            this.actionResult = actionResult;

            this.name = name;

            this.value = value;
        }

        public async Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
        {
            HttpResponseMessage httpResponseMessage = await this.actionResult.ExecuteAsync(cancellationToken);

            httpResponseMessage.Headers.Add(this.name, this.value);

            return httpResponseMessage;
        }
    }
}

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