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Trait worker::durable::DurableObject[−][src]

pub trait DurableObject {
    fn new(state: State, env: Env) -> Self;

    fn fetch<'life0, 'async_trait>(
        &'life0 mut self, 
        req: Request
    ) -> Pin<Box<dyn Future<Output = Result<Response>> + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait;
}
Expand description

Note: Implement this trait with a standard impl DurableObject for YourType block, but in order to integrate them with the Workers Runtime, you must also add the #[durable_object] attribute macro to both the impl block and the struct type definition.

Example

use worker::*;

#[durable_object]
pub struct Chatroom {
    users: Vec<User>,
    messages: Vec<Message>
    state: State,
    env: Env, // access `Env` across requests, use inside `fetch`

}

#[durable_object]
impl DurableObject for Chatroom {
    fn new(state: State, env: Env) -> Self {
        Self {
            users: vec![],
            messages: vec![],
            state: state,
            env,
        }
    }

    async fn fetch(&mut self, _req: Request) -> Result<Response> {
        // do some work when a worker makes a request to this DO
        Response::ok(&format!("{} active users.", self.users.len()))
    }
}

Required methods

Implementors