Struct PubChemClientBuilder 

pub struct PubChemClientBuilder { /* private fields */ }

Builder for PubChemClient.

Implementations

impl PubChemClientBuilder

pub fn requests_per_second(self, n: u32) -> Self

Maximum HTTP requests per second (default: 5 — PubChem’s published limit).

pub fn cache_capacity(self, n: u64) -> Self

In-memory cache capacity in number of entries (default: 1 000).

pub fn cache_ttl(self, ttl: Duration) -> Self

Cache TTL (default: 24 hours).

pub fn base_url(self, url: impl Into<String>) -> Self

Override the PubChem base URL (useful for testing against a local mock server).

pub fn build(self) -> PubChemClient

Build the PubChemClient.

Panics

Panics if the TLS backend cannot be initialised (extremely rare; indicates a broken system environment). For an infallible path in constrained environments use try_build.

pub fn try_build(self) -> Result<PubChemClient>

Build the PubChemClient, returning an error instead of panicking if the underlying HTTP client cannot be initialised (e.g. TLS failure).

Prefer this over build in long-running servers and WASM environments where a panic is unacceptable.

Trait Implementations

impl Default for PubChemClientBuilder

fn default() -> Self

Returns the “default value” for a type.