/// <summary>
/// Parses a JSON string into a class. The class needs to be decorated with the DataContract attribute.
/// </summary>
/// <typeparam name="T">Class type</typeparam>
/// <param name="json">Source JSON string</param>
/// <param name="result">Class instance created</param>
/// <returns>true when successful, false otherwise</returns>
// ReSharper disable once MemberCanBeMadeStatic.Global
public bool TryParse <T>(string json, [NotNullWhen(true)] out T?result) where T : class
{
try
{
result = LaraTools.Deserialize <T>(json);
return(result != null);
}
catch (SerializationException)
{
result = default;
return(false);
}
}
public async Task ReadAjaxMessage(HttpContext http)
{
if (!http.Request.HasFormContentType)
{
return;
}
var form = await http.Request.ReadFormAsync(); // TODO: cancellation token for shutdown
if (form.TryGetValue(GlobalConstants.MessageKey, out var values))
{
Message = LaraTools.Deserialize <ClientEventMessage>(values);
}
Files = form.Files;
}
/// <summary>
/// Parses a JSON string. If parsing fails, throws a StatusCodeException that returns a Bad Request (400).
/// The class needs to be decorated with the DataContract attribute.
/// </summary>
/// <typeparam name="T">Class type</typeparam>
/// <param name="json">JSON source text</param>
/// <returns>Instance of deserialized class</returns>
public T Parse <T>(string json) where T : class
{
T?result;
try
{
result = LaraTools.Deserialize <T>(json);
}
catch (Exception e)
{
var outer = new StatusCodeException(Resources.BadRequest, e)
{
StatusCode = HttpStatusCode.BadRequest
};
throw outer;
}
if (result == null)
{
throw new StatusCodeException(HttpStatusCode.BadRequest, Resources.BadRequest);
}
return(result);
}