/// <summary>
/// Read the request body as a form with the given options. These options will only be used
/// if the form has not already been read.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="options">Options for reading the form.</param>
/// <param name="cancellationToken"></param>
/// <returns>The parsed form.</returns>
public static Task <IFormCollection> ReadFormAsync(this HttpRequest request, FormOptions options,
CancellationToken cancellationToken = new CancellationToken())
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (!request.HasFormContentType)
{
throw new InvalidOperationException("Incorrect Content-Type: " + request.ContentType);
}
var features = request.HttpContext.Features;
var formFeature = features.Get <IFormFeature>();
if (formFeature == null || formFeature.Form == null)
{
// We haven't read the form yet, replace the reader with one using our own options.
features.Set <IFormFeature>(new FormFeature(request, options));
}
return(request.ReadFormAsync(cancellationToken));
}
public static async Task <IFormCollection> FormAsync(this HttpRequest httpRequest) => httpRequest.HasFormContentType ? await httpRequest.ReadFormAsync() : default;
