Function emit 

pub fn emit<E, P>(event: E, payload: &P) -> Result<Emit<E::Js>, Error>
where
    E: ToStringValue,
    P: Serialize + ?Sized,

Available on crate feature serde only.

Sends an event to the backend.

Example

Send an event with string payload.

tauri_wasm::emit("file-selected", "/path/to/file")?.await?;

You can send any serializable payload.

use serde::Serialize;

#[derive(Serialize)]
struct Message {
    key: &'static str,
    data: u32,
}

let message = Message {
    key: "secret",
    data: 37,
};

tauri_wasm::emit("file-selected", &message)?.await?;

To trigger an event to a listener registered by a specific target you can use the to function.

Capabilities

Note that in order to emit events, the Tauri framework requires the corresponding capabilities to be enabled. For example, let’s say our application and its window are named “app”. Then your Tauri.toml config should include something like:

[app]
# app configs..

[[app.security.capabilities]]
identifier = "default"
windows = ["app"]
permissions = ["core:event:default"]