Struct AsyncFlagPoller 

pub struct AsyncFlagPoller { /* private fields */ }

Asynchronous poller for feature flag definitions.

Runs a tokio task that periodically fetches flag definitions from the PostHog API and updates the shared cache. Use this for async applications. For blocking/sync applications, use FlagPoller instead.

Implementations

impl AsyncFlagPoller

pub fn new(config: LocalEvaluationConfig, cache: FlagCache) -> Self

Create an asynchronous flag definition poller.

Parameters

• config: Credentials, host, polling interval, and request timeout.
• cache: Shared cache updated by the poller.

pub async fn start(&mut self)

Start the polling task.

Performs an initial async load, then refreshes definitions in the background until AsyncFlagPoller::stop is called or the poller is dropped.

pub async fn load_flags(&self) -> Result<(), Error>

Load flags asynchronously and update the cache once.

Errors

Returns Error::Connection for request failures or non-success HTTP statuses, and Error::Serialization when the response cannot be parsed.

pub async fn stop(&mut self)

Stop the polling task.

pub async fn is_running(&self) -> bool

Check if the poller currently has a running background task.

Trait Implementations

impl Drop for AsyncFlagPoller

Available on crate feature async-client only.

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.