Trait Topic

pub trait Topic {
    type Message: Schema + ?Sized;

    const PATH: &'static str;
    const TOPIC_KEY: Key;
    const TOPIC_KEY4: Key4 = _;
    const TOPIC_KEY2: Key2 = _;
    const TOPIC_KEY1: Key1 = _;
}

A marker trait denoting a single topic

Unlike Endpoints, Topics are unidirectional, and can be sent at any time asynchronously. Messages may be sent client to server, or server to client.

Typically used with the topic macro.

Required Associated Constants

const PATH: &'static str

The path associated with this Topic

const TOPIC_KEY: Key

The unique Key identifying the Message

Provided Associated Constants

const TOPIC_KEY4: Key4 = _

The unique Key4 identifying the Message

const TOPIC_KEY2: Key2 = _

The unique Key2 identifying the Message

const TOPIC_KEY1: Key1 = _

The unique Key2 identifying the Message

Required Associated Types

type Message: Schema + ?Sized

The type of the Message (unidirectional)

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Topic for GetAllSchemaDataTopic

const PATH: &'static str = "postcard-rpc/schema/data"

const TOPIC_KEY: Key

type Message = OwnedSchemaData

impl Topic for LoggingTopic

const PATH: &'static str = "postcard-rpc/logging"

const TOPIC_KEY: Key

type Message = String