/
NextMessage.cs
40 lines (31 loc) · 1.17 KB
/
NextMessage.cs
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using System;
using System.Text.Json;
using static HotChocolate.Transport.Sockets.Client.Protocols.GraphQLOverWebSocket.Utf8MessageProperties;
namespace HotChocolate.Transport.Sockets.Client.Protocols.GraphQLOverWebSocket.Messages;
internal sealed class NextMessage : IDataMessage
{
private NextMessage(string id, OperationResult payload)
{
Id = id;
Payload = payload;
}
public string Id { get; }
public string Type => Messages.Next;
public OperationResult Payload { get; }
public static NextMessage From(JsonDocument document)
{
var root = document.RootElement;
var id = root.GetProperty(IdProp).GetString()!;
var payload = root.GetProperty(PayloadProp);
var result = new OperationResult(
document,
TryGetProperty(payload, DataProp),
TryGetProperty(payload, ErrorsProp),
TryGetProperty(payload, ExtensionsProp));
return new NextMessage(id, result);
}
private static JsonElement? TryGetProperty(JsonElement element, ReadOnlySpan<byte> name)
=> element.TryGetProperty(name, out var property)
? property
: null;
}