Debugging with SSL on localhost using Android

[henda79]

@adrianhall , I'm trying to setup an environment which will be easier to debug.

I have the ASP Core server running locally and the TodoApp running on an Android emulator. Now from what I understand, on Android you must use 10.0.2.2 to access the "localhost", however the issue is I can't use SSL when using that IP as it throws an exception

and if I try to connect without SSL I get another exception stating I must use SSL.

It works if I publish the server to Azure, but its harder to debug that way.

What's the recommended way, I'm losing so much time just trying to get things setup.

[fileman]

Hi,
you can use SSL on Android emulator, but you have to create a DelegatingHandler like this:

    public class AndroidEmulatorHandler : DelegatingHandler
    {
        protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
        {
            HttpMessageHandler handler = this.InnerHandler;

            while (handler is DelegatingHandler)
            {
                handler = ((DelegatingHandler)handler).InnerHandler;
            }
#if DEBUG
            if (handler is HttpClientHandler httpClientHandler
                && httpClientHandler.ServerCertificateCustomValidationCallback == null)
            {
                httpClientHandler
                    .ServerCertificateCustomValidationCallback =
                        (message, cert, chain, errors) => true;
            }
#endif
            // Now do the request
            var response = await base.SendAsync(request, cancellationToken);

            return response;
        }
    }

and then add on DatasyncClientOptions:

var options = new DatasyncClientOptions
                {
                    HttpPipeline = new DelegatingHandler[] { new AndroidEmulatorHandler() }
                };

[henda79]

I see there are plans for the docs, but are there plans to change IdGenerator ?

[adrianhall]

Feel free to file an issue with your suggestion on how to change IdGenerator.

[henda79]

I've not played with IdGenerator much, maybe @fileman would be more suited to this ? Maybe its just the case to already have a range ID's for that device as in my use case I would be using these offline so an async Http call wouldn't be needed, it would just call to the Db or similar local storage.

[xiiihopeestheim]

I tried adding the AndroidEmulatorHandler class by @fileman . And I was able to get around the "endpoint" must use secure error

An error I have now in .net maui is this:

This doesn't occur in Xamarin.Forms, does anyone have a work around for this error?

[henda79]

I can't help with the MAUI side of things as I'm staying clear of that for a while, but another option would be to use a tool like NGROK

https://ngrok.com/