Crate billdogeng 

billdogeng — Official BilldogEng server SDK for Rust.

Engagement suite for server-side use: Analytics + Feature Flags (remote + local evaluation) + Surveys (data API) + Messaging + LLM observability.

This crate mirrors the canonical Node reference implementation, idiomatically in Rust (synchronous API + a background flush thread).

use billdogeng::{BilldogEng, BilldogEngOptions, FlagEvalOptions};

let bd = BilldogEng::new("bd_test_xxx", BilldogEngOptions {
    local_evaluation: true,
    ..Default::default()
});

bd.capture("user-123", "order_completed", Default::default(), Default::default());
let on = bd.is_feature_enabled("new_checkout", "user-123", &FlagEvalOptions::default());
bd.shutdown().ok();

Re-exports

pub use flags::Flags;

pub use messaging::Messaging;

pub use surveys::Surveys;

Modules

flags

Feature-flag client supporting both remote and local (server-side) evaluation.

messaging

Messaging dispatch (BillDog advantage over PostHog) — server-side delivery across push / email / sms / in-app / live-activity.

surveys

Surveys DATA API (no UI rendering). Wraps the bdsurvey-* edge functions.

Structs

BilldogEng

The BilldogEng server SDK client.

BilldogEngError

Error returned when an API request ultimately fails (after retries) or the client is misconfigured.

BilldogEngOptions

Configuration for crate::BilldogEng. All fields have defaults via BilldogEngOptions::default.

DispatchParams

Parameters for crate::messaging::Messaging::dispatch.

FeatureFlagDefinition

A feature-flag definition returned by POST /feature-flag-definitions.

FlagEvalOptions

Options accepted by the feature-flag read methods.

FlagVariant

A single multivariate flag variant.

Llm

LLM observability client.

LlmTraceParams

Parameters for crate::llm::Llm::capture_trace.

MessagingScheduling

Scheduling block for a messaging dispatch.

MessagingTargeting

Targeting block for a messaging dispatch.

SurveyAnswer

A single survey answer. Mirrors the bdsurvey-submit answer shape.

SurveyContext

Optional context passed to survey lifecycle calls.

SurveyListItem

A survey summary returned by POST /bdsurvey-list.

TargetingRule

A single targeting rule. ALL rules must match for a flag to be ON.

WireEvent

The on-wire shape of a single analytics event (one element of the batch).

Enums

FlagValue

The evaluated value of a feature flag.

Operator

A targeting rule operator.

Functions

bucket_of

Deterministic 0..=99 bucket for a "{key}.{distinctId}" style seed.

murmurhash3

Compute the 32-bit murmurhash3 of key with seed 0.

murmurhash3_seed

Compute the 32-bit murmurhash3 of key with the given seed.

Type Aliases

Groups

Map of group type → group key (e.g. { company: "acme", team: "core" }).

Properties

Arbitrary JSON-serializable property bag.

Result

Convenience result alias.