/// <summary>
/// Executes the result operation of the action method asynchronously. This method is called by MVC to process
/// the result of an action method.
/// </summary>
/// <param name="context">The context in which the result is executed. The context information includes
/// information about the action that was executed and request information.</param>
/// <returns>A task that represents the asynchronous execute operation.</returns>
public async Task WriteResultAsync(HttpContext context)
{
if (_documentWriter == null)
{
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
if (_options.ExposeExceptions)
{
await context.Response.WriteAsync(NO_WRITER_WITH_DETAIL).ConfigureAwait(false);
}
else
{
await context.Response.WriteAsync(NO_WRITER_NO_DETAIL).ConfigureAwait(false);
}
}
else if (_result == null)
{
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
if (_options.ExposeExceptions)
{
await context.Response.WriteAsync(NO_RESULT_WITH_DETAIL).ConfigureAwait(false);
}
else
{
await context.Response.WriteAsync(NO_RESULT_NO_DETAIL).ConfigureAwait(false);
}
}
else
{
await _documentWriter.WriteAsync(context.Response.Body, _result, _options).ConfigureAwait(false);
}
}
/// <summary>
/// Writes a specified value as JSON.
/// </summary>
/// <param name="writer">The writer to write to.</param>
/// <param name="value">The value to convert to JSON.</param>
/// <param name="options">An object that specifies serialization options to use.</param>
public override void Write(Utf8JsonWriter writer, ApolloServerDataMessage value, JsonSerializerOptions options)
{
writer.WriteStartObject();
writer.WriteString(ApolloConstants.Messaging.MESSAGE_TYPE, ApolloMessageTypeExtensions.Serialize(value.Type));
if (value.Id != null)
{
writer.WriteString(ApolloConstants.Messaging.MESSAGE_ID, value.Id);
}
writer.WritePropertyName(ApolloConstants.Messaging.MESSAGE_PAYLOAD);
if (value.Payload == null)
{
writer.WriteNullValue();
}
else
{
_responseWriter.WriteAsync(
writer,
value.Payload,
new GraphQLResponseOptions()
{
ExposeExceptions = _schema.Configuration.ResponseOptions.ExposeExceptions,
ExposeMetrics = _schema.Configuration.ResponseOptions.ExposeMetrics,
});
}
writer.WriteEndObject();
}
private async Task <string> WriteResponse(IGraphQueryResponseWriter writer, IGraphOperationResult result, GraphQLResponseOptions options = null)
{
var stream = new MemoryStream();
options = options ?? new GraphQLResponseOptions()
{
ExposeExceptions = true,
ExposeMetrics = true,
};
await writer.WriteAsync(stream, result, options);
stream.Seek(0, SeekOrigin.Begin);
using (var reader = new StreamReader(stream))
return(reader.ReadToEnd());
}