/// <summary>
/// In old versions must invoke before another middleware, but after UseExceptionHandler.
/// <para></para>
/// Will send message with exception to chat.
/// </summary>
public static void UseDevEceptionMessage(this IPipelineBuilder @this)
{
@this.UseExceptionHandler(async(ctx, ex) =>
{
if (!(ex is TaskCanceledException))
{
var exceptionText = ex.ToString();
//Send messages.
var utfText = exceptionText;
//Max for telegram is 4096 UTF8 characters.
if (utfText.Length > 4080)
{
utfText = utfText.Remove(4080) + "...";
}
await ctx.SendTextMessageAsync(
"```\n" + utfText + " ```",
parseMode: ParseMode.Markdown
);
}
return(false);
});
}