Allow for a controlled data call

Author: aritchie

samples/Sample/MauiProgram.cs

@@ -17,7 +17,7 @@ public static MauiApp CreateMauiApp()
         // if remote has requested past values, those will be available here through configuration
         // so you could basically change the URI & AccessKey below
         // calling this method adds IRemoteConfigurationProvider to DI which allows you to await the configuration in a startup page if needed
-        builder.AddRemoteMaui();
+        builder.AddRemoteConfigurationMaui();
 
         // The extension method `BindConfiguration` is part of Microsoft.Extensions.Options.ConfigurationExtensions - don't hate the messenger
         builder.Services.AddOptions<MyConfig>().BindConfiguration("");

src/Shiny.Extensions.Configuration.Remote.Maui/MauiAppBuilderExtensions.cs

@@ -3,11 +3,16 @@ namespace Shiny.Extensions.Configuration.Remote.Maui;
 
 public static class MauiAppBuilderExtensions
 {
-    public static MauiAppBuilder AddRemoteMaui(this MauiAppBuilder builder, string configurationFileName = "remotesettings.json")
+    public static MauiAppBuilder AddRemoteConfigurationMaui(
+        this MauiAppBuilder builder, 
+        Func<CancellationToken, Task<object>>? getData = null, 
+        string configurationFileName = "remotesettings.json"
+    )
     {
         builder.Configuration.AddRemote(
             Path.Combine(FileSystem.AppDataDirectory, configurationFileName),
             config => config["ConfigurationUri"]!,
+            getData,
             false,
             builder.Services
         );

src/Shiny.Extensions.Configuration.Remote/ConfigurationExtensions.cs

@@ -12,13 +12,15 @@ public static class ConfigurationExtensions
     /// <param name="builder">The configuration builder</param>
     /// <param name="configurationFilePath">The location of where the remote settings should be persisted</param>
     /// <param name="getConfigurationUri">This allows you to get the configuration URI from the previous remote call & allows you to update the ConfigurationUri if needed</param>
+    /// <param name="getData">If you wish to control how/what data is returned, pass this function</param>
     /// <param name="waitForRemoteLoad">If you want the network call to be waited until completion before returning</param>
     /// <param name="services">If presented to the extension method, IRemoteConfigurationProvider is installed to the service container</param>
     /// <returns>The current configuration builder to allow for chaining</returns>
     public static IConfigurationBuilder AddRemote(
         this IConfigurationBuilder builder, 
         string configurationFilePath, 
         Func<IConfiguration, string> getConfigurationUri, 
+        Func<CancellationToken, Task<object>>? getData = null,
         bool waitForRemoteLoad = true,
         IServiceCollection? services = null
     )
@@ -30,7 +32,7 @@ public static IConfigurationBuilder AddRemote(
             uri,
             waitForRemoteLoad,
             configurationFilePath
-        ), services));
+        ), getData, services));
 
         return builder;
     }

src/Shiny.Extensions.Configuration.Remote/Infrastructure/RemoteConfigurationSource.cs

@@ -2,11 +2,12 @@
 
 namespace Shiny.Extensions.Configuration.Remote.Infrastructure;
 
-public class RemoteConfigurationSource(RemoteConfig config, IServiceCollection? services) : IConfigurationSource
+
+public class RemoteConfigurationSource(RemoteConfig config, Func<CancellationToken, Task<object>>? getData, IServiceCollection? services) : IConfigurationSource
 {
     public IConfigurationProvider Build(IConfigurationBuilder builder)
     {
-        var provider = new RemoteConfigurationProvider(config);
+        var provider = new RemoteConfigurationProvider(config, getData);
         services?.AddSingleton<IRemoteConfigurationProvider>(provider);
         return provider;
     }