1_fiddler_xamarin.md

1. Fiddler -> Options -> Connections -> 8888
2. ipconfig -> 192.168.0.2 (fiddler machine IP)
3. Android Emulator -> Settings -> APN -> Proxy -> 192.168.0.2
4. .NET layer:

var handler = new HttpClientHandler
{
    UseProxy = true,
    Proxy = new WebProxy("192.168.0.2", 8888)
};

var client = new HttpClient(handler);

2_custom_proxy.cs

public class Proxy : System.Net.IWebProxy
{
    public System.Net.ICredentials Credentials
    {
        get;
        set;
    }

    private readonly Uri _proxyUri;

    public Proxy(Uri proxyUri)
    {
        _proxyUri = proxyUri;
    }

    public Uri GetProxy(Uri destination)
    {
        return _proxyUri;
    }

    public bool IsBypassed(Uri host)
    {
        return false;
    }
}