/// <summary>
/// Executes the middleware.
/// </summary>
/// <param name="context">The <see cref="HttpContext"/> for the current request.</param>
/// <returns>A task that represents the execution of this middleware.</returns>
public async Task Invoke(HttpContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
PathString path = context.Request.Path;
PathString remainingPath;
if (path.StartsWithSegments(_options.PathMatch, out remainingPath))
{
// Update the path
PathString pathBase = context.Request.PathBase;
context.Request.PathBase = pathBase + _options.PathMatch;
context.Request.Path = remainingPath;
try
{
await _options.Branch(context);
}
finally
{
context.Request.PathBase = pathBase;
context.Request.Path = path;
}
}
else
{
await _next(context);
}
}