Articles tagged #async-fn-in-trait
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Async fn in trait, for real this time
async_trait’s one weird type ascription trick
Now that I got the Log in with GitHub feature working, let’s explore
what this would’ve looked like with the async_trait crate.
First up, the trait definition:
/// Something that can refresh credentials
#[async_trait::async_trait]
pub trait CredentialsRefresher {
async fn refresh(&self, creds: &FutileCredentials) -> eyre::Result<FutileCredentials>;
}
Async fn in trait... not
Async fn in trait… not
I was planning on showing the in-progress async_fn_in_trait feature in the
context of my website, but it turns out, I can’t!
My website uses two databases: one local SQLite database for content, and a shared Postgres database for user credentials, preferences etc. Migrations are run on startup, and each migration implements one of the following traits:
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Go back to the homepage.