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Basic Serialization

This page covers typed serialization APIs in Apache Fory™ C#.

Object Graph Serialization​

Use [ForyObject] on your classes/structs and register them before use.

using Apache.Fory;

[ForyObject]
public sealed class Address
{
    public string Street { get; set; } = string.Empty;
    public int Zip { get; set; }
}

[ForyObject]
public sealed class Person
{
    public long Id { get; set; }
    public string Name { get; set; } = string.Empty;
    public string? Nickname { get; set; }
    public List<int> Scores { get; set; } = [];
    public List<Address> Addresses { get; set; } = [];
}

Fory fory = Fory.Builder().Build();
fory.Register<Address>(100);
fory.Register<Person>(101);

Person person = new()
{
    Id = 42,
    Name = "Alice",
    Nickname = null,
    Scores = [10, 20, 30],
    Addresses = [new Address { Street = "Main", Zip = 94107 }],
};

byte[] payload = fory.Serialize(person);
Person decoded = fory.Deserialize<Person>(payload);

Typed API​

Serialize / Deserialize with byte arrays​

byte[] payload = fory.Serialize(value);
MyType decoded = fory.Deserialize<MyType>(payload);

Deserialize from ReadOnlySpan<byte>​

ReadOnlySpan<byte> span = payload;
MyType decoded = fory.Deserialize<MyType>(span);

Stream-style frame consumption​

using System.Buffers;

ReadOnlySequence<byte> sequence = GetFramedSequence();
MyType first = fory.Deserialize<MyType>(ref sequence);
MyType second = fory.Deserialize<MyType>(ref sequence);

Dynamic Payloads via Generic Object API​

When the compile-time type is unknown or heterogeneous, use the generic API with object?.

Dictionary<object, object?> value = new()
{
    ["k1"] = 7,
    [2] = "v2",
    [true] = null,
};

byte[] payload = fory.Serialize<object?>(value);
object? decoded = fory.Deserialize<object?>(payload);

Buffer Writer API​

Serialize directly into IBufferWriter<byte> targets.

using System.Buffers;

ArrayBufferWriter<byte> writer = new();
fory.Serialize(writer, value);

ArrayBufferWriter<byte> dynamicWriter = new();
fory.Serialize<object?>(dynamicWriter, value);

Notes​

  • Reuse the same Fory or ThreadSafeFory instance for better performance.
  • Primitive types and collections do not require user registration.
  • User [ForyObject] and custom serializer types should be registered explicitly.