asp.net核心通用代理

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如何在asp.net核心中執行代理服務，請求將被路由到其他服務的擴展。asp.net核心通用代理

我的擴展：

public static IApplicationBuilder UseProxy(this IApplicationBuilder builder, List<ProxySetting> options) 
    { 
     builder.Use(async (context, next) => 
     { 
      var resultPathHandler = options.ProxySettingHandler(context.Request.Path, context.Request.Method); 

      if (!resultPathHandler.Equal) 
       //continues through the rest of the pipeline 
       await next(); 
      else 
      { 
       using (var httpClient = new HttpClient()) 
       { 
        var pathSetting = resultPathHandler.Setting; 
        var requestMessage = new HttpRequestMessage(); 

        //добавляем хедеры 
        foreach (var header in context.Request.Headers) 
        { 
         if (!httpClient.DefaultRequestHeaders.TryAddWithoutValidation(header.Key, header.Value.ToArray())) 
         { 
          httpClient.DefaultRequestHeaders.TryAddWithoutValidation(header.Key, 
           header.Value.ToArray()); 
         } 
        } 


        if (context.Request.HasFormContentType && context.Request.Form.Count > 0) 
        { 
         var temp = new Dictionary<string, object>(); 
         foreach (var form in context.Request.Form) 
         { 
          requestMessage.Properties.Add(form.Key, form.Value); 
          temp.Add(form.Key, form.Value); 
         } 
         var jsonString = JsonConvert.SerializeObject(temp).Replace(":[", ":").Replace("],",","); 

         var mediatype = string.Empty; 
         if (context.Request.ContentType.Contains(';')) 
          mediatype = context.Request.ContentType.Split(';')[0]; 
         else 
          mediatype = context.Request.ContentType; 

         requestMessage.Content = new StringContent(jsonString, Encoding.UTF8, mediatype); 
        } 

        requestMessage.Headers.Host = pathSetting.Host; 
        var host = pathSetting.GetUri(context.Request.Path); 
        var uriString = $"{host}{context.Request.QueryString}"; 
        requestMessage.RequestUri = new Uri(uriString); 
        requestMessage.Method = new HttpMethod(pathSetting.Method); 
        var response = await httpClient.SendAsync(requestMessage); 
        var result = await response.Content.ReadAsStringAsync(); 
        var resultObj = JsonConvert.DeserializeObject<object>(result); 
        context.Response.StatusCode = (int)response.StatusCode; 
        await context.Response.WriteAsync(resultObj.ToString()); 
       } 
      } 
     }); 

     return builder; 
    }

其中該代碼：

   if (context.Request.HasFormContentType && context.Request.Form.Count > 0) 
       { 
        var temp = new Dictionary<string, object>(); 
        foreach (var form in context.Request.Form) 
        { 
         requestMessage.Properties.Add(form.Key, form.Value); 
         temp.Add(form.Key, form.Value); 
        } 
        var jsonString = JsonConvert.SerializeObject(temp).Replace(":[", ":").Replace("],",","); 

        var mediatype = string.Empty; 
        if (context.Request.ContentType.Contains(';')) 
         mediatype = context.Request.ContentType.Split(';')[0]; 
        else 
         mediatype = context.Request.ContentType; 

        requestMessage.Content = new StringContent(jsonString, Encoding.UTF8, mediatype); 
       }

添加到內容後，把參數，與應用程序/ x-WWW窗體-urlencoded或應用程序/表單數據，併發送到其他服務，但我沒有得到這個參數在其他服務。幫幫我，需要發佈這個功能。 Thx，對不起我的英文不好

來源

2016-09-16 Max Melnikov

你不需要重新發明輪子。 ASP.NET Core已經擁有並提供了自己的ProxyMiddleware。

來源

2016-09-16 09:17:34 Set

asp.net核心通用代理

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