using System.Net.Http; using System.Text; using System.Text.Json; using System.Threading.Tasks; using BlazorShared; using BlazorShared.Models; using Microsoft.Extensions.Options; namespace BlazorAdmin.Services; public class HttpService { private readonly HttpClient _httpClient; private readonly ToastService _toastService; private readonly string _apiUrl; public HttpService(HttpClient httpClient, IOptions<BaseUrlConfiguration> baseUrlConfiguration, ToastService toastService) { _httpClient = httpClient; _toastService = toastService; _apiUrl = baseUrlConfiguration.Value.ApiBase; } public async Task<T> HttpGet<T>(string uri) where T : class { var result = await _httpClient.GetAsync($"{_apiUrl}{uri}"); if (!result.IsSuccessStatusCode) { return null; } return await FromHttpResponseMessage<T>(result); } public async Task<T> HttpDelete<T>(string uri, int id) where T : class { var result = await _httpClient.DeleteAsync($"{_apiUrl}{uri}/{id}"); if (!result.IsSuccessStatusCode) { return null; } return await FromHttpResponseMessage<T>(result); } public async Task<T> HttpPost<T>(string uri, object dataToSend) where T : class { var content = ToJson(dataToSend); var result = await _httpClient.PostAsync($"{_apiUrl}{uri}", content); if (!result.IsSuccessStatusCode) { var exception = JsonSerializer.Deserialize<ErrorDetails>(await result.Content.ReadAsStringAsync(), new JsonSerializerOptions { PropertyNameCaseInsensitive = true }); _toastService.ShowToast($"Error : {exception.Message}", ToastLevel.Error); return null; } return await FromHttpResponseMessage<T>(result); } public async Task<T> HttpPut<T>(string uri, object dataToSend) where T : class { var content = ToJson(dataToSend); var result = await _httpClient.PutAsync($"{_apiUrl}{uri}", content); if (!result.IsSuccessStatusCode) { _toastService.ShowToast("Error", ToastLevel.Error); return null; } return await FromHttpResponseMessage<T>(result); } private StringContent ToJson(object obj) { return new StringContent(JsonSerializer.Serialize(obj), Encoding.UTF8, "application/json"); } private async Task<T> FromHttpResponseMessage<T>(HttpResponseMessage result) { return JsonSerializer.Deserialize<T>(await result.Content.ReadAsStringAsync(), new JsonSerializerOptions { PropertyNameCaseInsensitive = true }); } }
原文地址:http://www.cnblogs.com/friend/p/16800213.html
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