Struct mz_adapter::config::frontend::SystemParameterFrontend

pub struct SystemParameterFrontend {
    ld_client: Client,
    ld_ctx: Context,
    ld_key_map: BTreeMap<String, String>,
    ld_metrics: Metrics,
    now_fn: NowFn,
}

A frontend client for pulling SynchronizedParameters from LaunchDarkly.

Fields

ld_client: Client

An SDK client to mediate interactions with the LaunchDarkly client.

ld_ctx: Context

The context to use when quering LaunchDarkly using the SDK. This scopes down queries to a specific key.

ld_key_map: BTreeMap<String, String>

A map from parameter names to LaunchDarkly feature keys to use when populating the SynchronizedParameters instance in SystemParameterFrontend::pull.

ld_metrics: Metrics

Frontend metrics.

now_fn: NowFn

Function to return the current time.

Implementations

impl SystemParameterFrontend

pub async fn from( sync_config: &SystemParameterSyncConfig, ) -> Result<Self, Error>

Create a new SystemParameterFrontend initialize.

This will create and initialize an ld::Client instance. The ld::Client::initialized_async call will be attempted in a loop with an exponential backoff with power 2s and max duration 60s.

pub fn pull(&self, params: &mut SynchronizedParameters) -> bool

Pull the current values for all SynchronizedParameters from the SystemParameterFrontend and return true iff at least one parameter value was modified.

Trait Implementations

impl Debug for SystemParameterFrontend

fn fmt(&self, __f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for SystemParameterFrontend

fn drop(&mut self)

Executes the destructor for this type.