public static void WriteErrorDetailsResponseJson(this HttpContext Context, ErrorDetails errorDetails)
{
Context.Response.ContentType = "application/json";
using Utf8JsonWriter writer = new System.Text.Json.Utf8JsonWriter(Context.Response.BodyWriter);
writer.WriteStartObject();
foreach (var item in errorDetails.GetType().GetProperties())
{
writer.WritePropertyName(item.Name);
if (item.PropertyType == typeof(int))
{
writer.WriteNumberValue((int)item.GetValue(errorDetails));
}
else if (item.PropertyType == typeof(string))
{
writer.WriteStringValue(item.GetValue(errorDetails).ToString());
}
}
writer.WriteEndObject();
writer.Flush();
}
/// <summary>
/// Writes this instance to provided writer.
/// </summary>
/// <param name="writer">Writer to wrtire this instance to.</param>
public void WriteTo(Utf8JsonWriter writer)
{
var recursionStack = new Stack <RecursionStackFrame>();
recursionStack.Push(new RecursionStackFrame(null, this));
while (recursionStack.Any())
{
RecursionStackFrame currentFrame = recursionStack.Peek();
recursionStack.Pop();
if (currentFrame.PropertyValue == null)
{
// Current object/array is finished.
// PropertyValue is null, so we need to check ValueKind:
Debug.Assert(currentFrame.ValueKind == JsonValueKind.Object || currentFrame.ValueKind == JsonValueKind.Array);
if (currentFrame.ValueKind == JsonValueKind.Object)
{
writer.WriteEndObject();
}
if (currentFrame.ValueKind == JsonValueKind.Array)
{
writer.WriteEndArray();
}
continue;
}
if (currentFrame.PropertyName != null)
{
writer.WritePropertyName(currentFrame.PropertyName);
}
switch (currentFrame.PropertyValue)
{
case JsonObject jsonObject:
writer.WriteStartObject();
// Add end of object marker:
recursionStack.Push(new RecursionStackFrame(null, null, JsonValueKind.Object));
// Add properties to recursion stack. Reverse enumerator to keep properties order:
foreach (KeyValuePair <string, JsonNode> jsonProperty in jsonObject.Reverse())
{
recursionStack.Push(new RecursionStackFrame(jsonProperty.Key, jsonProperty.Value));
}
break;
case JsonArray jsonArray:
writer.WriteStartArray();
// Add end of array marker:
recursionStack.Push(new RecursionStackFrame(null, null, JsonValueKind.Array));
// Add items to recursion stack. Reverse enumerator to keep items order:
foreach (JsonNode item in jsonArray.Reverse())
{
recursionStack.Push(new RecursionStackFrame(null, item));
}
break;
case JsonString jsonString:
writer.WriteStringValue(jsonString.Value);
break;
case JsonNumber jsonNumber:
writer.WriteNumberValue(Encoding.UTF8.GetBytes(jsonNumber.ToString()));
break;
case JsonBoolean jsonBoolean:
writer.WriteBooleanValue(jsonBoolean.Value);
break;
case JsonNull _:
writer.WriteNullValue();
break;
}
writer.Flush();
}
writer.Flush();
}
