SignedMessage<T> Class

Definition

Namespace: Savvyio.Messaging.Cryptography

Assemblies: Savvyio.Messaging.dll

Source: src/Savvyio.Messaging/Cryptography/SignedMessage.cs

Provides a default implementation of the ISignedMessage<T> interface.

public record SignedMessage<T> : Acknowledgeable, IEquatable<Acknowledgeable>, ISignedMessage<T>, IMessage<T>, IAcknowledgeable, IEquatable<SignedMessage<T>> where T : IRequest

Type Parameters

T: The type of the payload constraint to the IRequest interface.

Inheritance: object

Acknowledgeable

SignedMessage<T>

Implements: IEquatable<Acknowledgeable>

ISignedMessage<T>

IMessage<T>

IAcknowledgeable

IEquatable<SignedMessage<T>>

Inherited Members: Acknowledgeable.Acknowledged

Acknowledgeable.Properties

Acknowledgeable.AcknowledgeAsync()

Acknowledgeable.OnAcknowledgedAsync(AcknowledgedEventArgs)

Extension Methods: SignedMessageExtensions.CheckSignature<T>(ISignedMessage<T>, IMarshaller, Action<SignedMessageOptions>)

MessageExtensions.Sign<T>(IMessage<T>, IMarshaller, Action<SignedMessageOptions>)

MessageExtensions.Clone<T>(IMessage<T>, Func<IMessage<T>>)

Examples

Attach a signature to an existing IMessage<T> envelope using MessageExtensions.Sign<T>. SignedMessage<T> carries both the original message and the computed signature so the consumer can verify integrity before dispatching.

using System;
using Savvyio;
using Savvyio.Messaging;
using Savvyio.Messaging.Cryptography;

namespace ExampleApp;

public sealed class SignedMessageExample
{
    public void SignAndVerify()
    {
        var message = new Message<CreateOrderCommand>(
            "msg-42",
            new Uri("urn:orders"),
            "orders.create",
            new CreateOrderCommand("ORD-42"));

        var signed = new SignedMessage<CreateOrderCommand>(message, "hmac-signature-value");
        Console.WriteLine($"Message {signed.Id} signed with: {signed.Signature}");
    }
}

public sealed record CreateOrderCommand(string OrderId) : Request;

Constructors

Name	Description
SignedMessage(IMessage<T>, string)	Initializes a new instance of the SignedMessage<T> class.

Properties

Name	Description
Data	Gets the payload of the message.
Id	Gets the identifier of the message. When combined with Source, this enables deduplication.
Signature	Gets the cryptographic signature of the message.
Source	Gets the context that describes the origin of the message. When combined with Id, this enables deduplication.
Time	Gets the time, expressed as the Coordinated Universal Time (UTC), at which this message was generated.
Type	Gets the type that describes the type of event related to the originating occurrence.

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