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ApiResponseHandler.cs
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77 lines (64 loc) · 2.69 KB
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using Blog.Core.Model;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace Blog.Core.Gateway.Extensions
{
/// <summary>
/// 这里不需要，目前集成的是 Blog.Core.Extensions 下的接口处理器
/// 但是你可以单独在网关中使用这个。
/// </summary>
public class ApiResponseHandler : DelegatingHandler
{
JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings()
{
ContractResolver = new CamelCasePropertyNamesContractResolver()
};
protected async override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
var response = await base.SendAsync(request, cancellationToken);
var contentType = response.Content.Headers.ContentType?.MediaType ?? "";
if (!contentType.Equals("application/json")) return response;
dynamic result = null;
var resultStr = await response.Content.ReadAsStringAsync();
try
{
result = JsonConvert.DeserializeObject<dynamic>(resultStr);
}
catch (Exception)
{
return response;
}
if (result != null && result.code == 500) resultStr = result.msg.ToString();
var apiResponse = new ApiResponse(StatusCode.CODE200).MessageModel;
if (response.StatusCode != HttpStatusCode.OK || result.code == (int)HttpStatusCode.InternalServerError)
{
var exception = new Exception(resultStr);
apiResponse = new ApiResponse(StatusCode.CODE500).MessageModel;
}
else if (result.code == (int)HttpStatusCode.Unauthorized)
{
apiResponse = new ApiResponse(StatusCode.CODE401).MessageModel;
}
else if (result.code == (int)HttpStatusCode.Forbidden)
{
apiResponse = new ApiResponse(StatusCode.CODE403).MessageModel;
}
else
{
}
var statusCode = apiResponse.status == 500 ? HttpStatusCode.InternalServerError
: apiResponse.status == 401 ? HttpStatusCode.Unauthorized
: apiResponse.status == 403 ? HttpStatusCode.Forbidden
: HttpStatusCode.OK;
response.StatusCode = statusCode;
response.Content = new StringContent(JsonConvert.SerializeObject(apiResponse, jsonSerializerSettings), Encoding.UTF8, "application/json");
return response;
}
}
}