如何获得json响应与WebView2

Question

我想从这个API的响应体中获取一个json:

// http://localhost:3000/api/auth/[token]
export default function Auth(request, response) {
response.status(200).json({ token: request.query})
}

尝试WebView.CoreWebView2.WebResourceResponseReceived事件只触发一次，事件参数的请求Uri参数为"http://localhost:3000/favicon.ico"

如何获得响应内容?

我做了什么:

public partial class SignInUserControl : UserControl
{
public SignInUserControl()
{
InitializeComponent();
InitWebView();
}
async void InitWebView()
{
await WebView.EnsureCoreWebView2Async(null);
WebView.CoreWebView2.WebResourceResponseReceived += CoreWebView2_WebResourceResponseReceived;
}
async void CoreWebView2_WebResourceResponseReceived(object sender, CoreWebView2WebResourceResponseReceivedEventArgs e)
{
try
{
Stream stream = await e.Response.GetContentAsync();
TextReader tr = new StreamReader(stream);
string re = tr.ReadToEnd();
}
catch { }
}
}

我的期望:

http://localhost:3000/api/auth/42sad87aWasFGAS
re = {"token":"42sad87aWasFGAS"} // From CoreWebView2_WebResourceResponseReceived method

ps: WebViewer2控件正在工作。所以我不认为这个问题和它的初始化有关。工作示例

Answer 1

真正的问题是WebView初始化。🤦‍♂️感谢@user09938和@david-risney

我做了什么?我从Xaml中删除了Source属性，并做了以下更改:

public partial class SignInUserControl : UserControl
{
public SignInUserControl()
{
InitializeComponent();
InitwebView();
}
private void InitwebView()
{
WebView.CoreWebView2InitializationCompleted += WebView_CoreWebView2InitializationCompleted;
WebView.EnsureCoreWebView2Async(null).GetAwaiter();
WebView.Source = new Uri("http://localhost:3000/api/auth/NelsonHenrique");
}
private void WebView_CoreWebView2InitializationCompleted(object sender, CoreWebView2InitializationCompletedEventArgs e)
{
WebView.CoreWebView2.WebResourceResponseReceived += CoreWebView2_WebResourceResponseReceived;
}
private void CoreWebView2_WebResourceResponseReceived(object sender, CoreWebView2WebResourceResponseReceivedEventArgs e)
{
var result = e.Response.GetContentAsync().GetAwaiter();
result.OnCompleted(() =>
{
try
{
var res = result.GetResult();
StreamReader reader = new StreamReader(res);
string text = reader.ReadToEnd();
// text: "{"token":"NelsonHenrique"}"
}
catch (Exception e)
{
Console.WriteLine(e);
}
});
}
}