aspnet core snips

cs.cs

//ultimately this sever feature stuff isn't available in azure until after startup
            var runningHostAddresses = app.ServerFeatures.Get<IServerAddressesFeature>().Addresses.Select(a => new Uri(a).Host);
            var isLocalDev = new[] { "127.0.0.1", "localhost" }.Intersect(runningHostAddresses).Count() > 0;
            Environment.SetEnvironmentVariable("eComm_Storefront_localdev", isLocalDev.ToString());
            _logger.LogInformation($"running on host ips: {string.Join(", ", runningHostAddresses)}");

                    //
                    //it's fuzzy to see a good established pattern for doing local overrides for settings retrieved from a web api
                    //especially since the existing paradigm is based on Azure subscriptions (aka environments) being populated with settings,
                    //and a "localdev" PER DEVELOPER environment doesn't seem to be an easily retrofitted concept
                    //further, we probably don't really want to have a full copy of ALL the DEV ENV config per developer anyway...
                    //it's usually just a one off override here and there
                    //what i'm doing so far is _roughly_ following the basic established pattern of an environment variable,
                    //set via launchSettings.json, which drives loading of appsettings.{}.json files.
                    //note: not initially wrapping a formal model class around this .. model seems overkill so far
                    //
                    //a more automatic route is technically feasible but doesn't smell good...
                    //scan the process list for iisexpress.exe's and automatically obtain locally running api urls
                    //the bummer is that then turns into some kind of dependency on local process apis and unfortunately finding a commandline is a step or two outside of trivial
                    //just in case, here's powershell that would obtain the iisexpress config file running by api name:
                    //  Get-CimInstance Win32_Process -Filter "name = 'iisexpress.exe'" | select CommandLine | select-string "/config:`"(.*?)`".*?/site:`"(.*?)`"" | % {$_.Matches[0].Groups[1].Value, $_.Matches[0].Groups[2].Value}
                    //  from there you could run the following line to get the corresponding localhost://port:url which could be popped into the tenant settings by api name
                    //  'C:\Program Files\IIS Express\appcmd.exe' list sites /apphostconfig:{config file above}
                    //also, presumably iisexpress is just a historical dependency to be eventually shifted to 'dotnet run'