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Meshline
SDK 1.1.0 · TypeView source on GitHub

Developer guide · API index

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Meshline.Sdk

Meshline.Models.Protocol

ChannelPost Class

Contains the device-signed content of a public channel post.

public sealed record ChannelPost : Meshline.Models.Protocol.TypedProtocolModel, System.IEquatable<Meshline.Models.Protocol.ChannelPost>

Inheritance System.Object → ProtocolModel → TypedProtocolModel → ChannelPost

Implements System.IEquatable<ChannelPost>

Constructors

ChannelPost() Constructor

Contains the device-signed content of a public channel post.

public ChannelPost();

Properties

ChannelPost.Attachments Property

The content references attached to the message.

public System.Nullable<System.Collections.Immutable.ImmutableArray<Meshline.Models.Protocol.ContentReference>> Attachments { get; init; }

Property Value

System.Nullable<System.Collections.Immutable.ImmutableArray<ContentReference>>

ChannelPost.Body Property

The optional plaintext message body.

public Meshline.Models.Protocol.MessageBody? Body { get; init; }

Property Value

MessageBody

ChannelPost.ChannelId Property

The channel's canonical chan_ identifier.

public string ChannelId { get; init; }

Property Value

System.String

ChannelPost.DeviceSignature Property

The device signature over the model's device signing input.

public System.Collections.Immutable.ImmutableArray<byte> DeviceSignature { get; init; }

Property Value

System.Collections.Immutable.ImmutableArray<System.Byte>

ChannelPost.MessageId Property

The message's canonical msg_ identifier.

public string MessageId { get; init; }

Property Value

System.String

Methods

ChannelPost.GetSigningInput(NetworkContext) Method

Builds the canonical, network-bound bytes used to sign or verify this document.

public byte[] GetSigningInput(Meshline.Models.NetworkContext context);

Parameters

context NetworkContext

The network context bound into identifiers or signing input.

Returns

System.Byte[]
The canonical UTF-8 signing input bound to the network context, with the applicable signature fields omitted.

Exceptions

System.Text.Json.JsonException
The signing payload cannot be represented as canonical protocol JSON, contains conflicting extension fields, or already contains a root $context property.

ChannelPost.Validate(NetworkContext) Method

Validates the post identifiers, body, attachments, and signature length.

public override Meshline.Validation.ProtocolViolation? Validate(Meshline.Models.NetworkContext? context=null);

Parameters

context NetworkContext

The optional network context passed to nested validation when needed; field-only validation may ignore it.

Returns

ProtocolViolation
The first detected protocol violation, or null if the implemented checks pass.

Remarks

These checks do not verify the external device signature or establish current signer authorization. Verify the signature and the applicable device-state or resource authorization evidence separately.