[英]ASP.NET Core Web API - How to Consume 3rd party API using HttpClient
[英]ASP.NET MVC Core - Consume API through HttpClient
我有一個帶有兩個項目的Visual Studio解決方案。 API和MVC。 MVC是包含視圖等的MVC項目,API是包含API端點和邏輯的API項目。 由於我有兩個項目,因此我已將解決方案配置為具有多個啟動項目。
HttpClient的
public const string AuctionAPI = "http://localhost:44337/";
public const string AuctionClient = "http://localhost:44398/";
public static HttpClient GetClient()
{
HttpClient client = new HttpClient();
client.BaseAddress = new Uri(AuctionAPI);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
return client;
}
MVC控制器(注意:當我設置HttpResponseMessage並嘗試調用client.GetAsync()時,我在第6行收到錯誤消息
[Route("item/{itemNumber}")]
public async Task<IActionResult> IndexForItem(int itemNumber)
{
var client = GetClient();
//ERROR: In next line, HttpResponseMessage it tries to call my API controller and fails
HttpResponseMessage response = await client.GetAsync($@"api/Auction/SeeOneItem/{itemNumber}");
if (response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
var model = await response.Content.ReadAsAsync<AuctionItemProxy>();
return View(model);
}
else
{
return Content("An error occured.");
}
}
API控制器(注意:此方法的斷點永遠不會命中)
[HttpGet("SeeOneItem/{itemNumber:int}")]
public AuctionItem GetAuctionItem(int itemNumber)
{
var item = _auctionItemDataFactory.AuctionItems.First(x => x.ItemNumber == itemNumber);
if (item == null)
{
return null;
}
return _auctionItemDataFactory.AuctionItems.First(x => x.ItemNumber == itemNumber);
}
我收到的實際錯誤
IOException: Unable to read data from the transport connection
此錯誤意味着可以訪問目標計算機,但是無法訪問您嘗試訪問的服務。
通過查看您共享的代碼,我注意到了一件事。 如果將項目設置為使用Https,則IIS Express會分配以443開頭的端口,從而導致類似443xx的端口。 將您的http方案更改為https,然后重試。
public const string AuctionAPI = "http://localhost:44337/";
至
public const string AuctionAPI = "https://localhost:44337/";
要么
更改項目設置以不使用SSL
此問題也可能與傳輸級別的安全性有關。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.