Rust SDK - OpenFeature

[dependencies]
westyx-nexus = "0.11.0-beta.2"
westyx-nexus-openfeature = "0.11.0-beta.2"
open-feature = "0.3"

use open_feature::OpenFeature;
use westyx_nexus::{NexusClient, NexusConfig};
use westyx_nexus_openfeature::NexusFeatureProvider;

let client = NexusClient::create(NexusConfig {
    api_key: std::env::var("NEXUS_API_KEY")?,
    endpoint: std::env::var("NEXUS_ENDPOINT")?,
    ..Default::default()
})
.await?;
client.run_stream(); // keeps the snapshot fresh

let mut api = OpenFeature::singleton_mut().await;
api.set_provider(NexusFeatureProvider::new(client)).await;
drop(api);

let flags = OpenFeature::singleton().await.create_client();
let enabled = flags.get_bool_value("new-checkout", None, None).await.unwrap_or(false);