/// <summary>
/// Writes a <see cref="GraphQLWebSocketMessageType.Start"/> message to the writer
/// </summary>
/// <param name="writer">The writer</param>
/// <param name="operationId">The operation id of the operation</param>
/// <param name="request">The operation request containing the payload</param>
public static void WriteStartOperationMessage(
this SocketMessageWriter writer,
string operationId,
OperationRequest request)
{
if (operationId == null)
{
throw new ArgumentNullException(nameof(operationId));
}
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
writer.WriteStartObject();
writer.WriteType(GraphQLWebSocketMessageType.Start);
writer.WriteId(operationId);
writer.WriteStartPayload();
writer.Serialize(request);
writer.WriteEndObject();
}