/// <summary>
/// Handles requests by passing them through to an instance of the Angular CLI server.
/// This means you can always serve up-to-date CLI-built resources without having
/// to run the Angular CLI server manually.
///
/// This feature should only be used in development. For production deployments, be
/// sure not to enable the Angular CLI server.
/// </summary>
/// <param name="app">The <see cref="IApplicationBuilder"/>.</param>
/// <param name="npmScript">The name of the script in your package.json file that launches the Angular CLI process.</param>
public static void UseAngularCliServer(
this IApplicationBuilder app,
string npmScript)
{
var spaOptions = DefaultSpaOptions.FindInPipeline(app);
if (spaOptions == null)
{
throw new InvalidOperationException($"{nameof(UseAngularCliServer)} should be called inside the 'configure' callback of a call to {nameof(SpaApplicationBuilderExtensions.UseSpa)}.");
}
if (string.IsNullOrEmpty(spaOptions.SourcePath))
{
throw new InvalidOperationException($"To use {nameof(UseAngularCliServer)}, you must supply a non-empty value for the {nameof(ISpaOptions.SourcePath)} property of {nameof(ISpaOptions)} when calling {nameof(SpaApplicationBuilderExtensions.UseSpa)}.");
}
AngularCliMiddleware.Attach(app, spaOptions.SourcePath, npmScript);
}
/// <inheritdoc />
public Task Build(IApplicationBuilder app)
{
var spaOptions = DefaultSpaOptions.FindInPipeline(app);
if (spaOptions == null)
{
throw new InvalidOperationException($"{nameof(AngularCliBuilder)} can only be used in an application configured with {nameof(SpaApplicationBuilderExtensions.UseSpa)}().");
}
if (string.IsNullOrEmpty(spaOptions.SourcePath))
{
throw new InvalidOperationException($"To use {nameof(AngularCliBuilder)}, you must supply a non-empty value for the {nameof(ISpaOptions.SourcePath)} property of {nameof(ISpaOptions)} when calling {nameof(SpaApplicationBuilderExtensions.UseSpa)}.");
}
return(StartAngularCliBuilderAsync(
_npmScriptName,
spaOptions.SourcePath,
AngularCliMiddleware.GetOrCreateLogger(app)));
}