Struct WikidataClient 

pub struct WikidataClient { /* private fields */ }

Client for Wikidata API and SPARQL endpoint

Implementations

impl WikidataClient

pub fn new() -> Result<Self>

Create a new Wikidata client

pub async fn search_entities(&self, query: &str) -> Result<Vec<WikidataEntity>>

Search for Wikidata entities

Arguments

• query - Search query

pub async fn get_entity(&self, qid: &str) -> Result<WikidataEntity>

Get a Wikidata entity by QID

Arguments

• qid - Wikidata Q-identifier (e.g., “Q42” for Douglas Adams)

pub async fn sparql_query( &self, query: &str, ) -> Result<Vec<HashMap<String, String>>>

Execute a SPARQL query

Arguments

• query - SPARQL query string

pub async fn query_climate_entities(&self) -> Result<Vec<DataRecord>>

Query climate change related entities

pub async fn query_pharmaceutical_companies(&self) -> Result<Vec<DataRecord>>

Query pharmaceutical companies

pub async fn query_disease_outbreaks(&self) -> Result<Vec<DataRecord>>

Query disease outbreaks

Trait Implementations

impl DataSource for WikidataClient

fn source_id(&self) -> &str

Source identifier

fn fetch_batch<'life0, 'async_trait>( &'life0 self, cursor: Option<String>, _batch_size: usize, ) -> Pin<Box<dyn Future<Output = Result<(Vec<DataRecord>, Option<String>)>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Fetch a batch of records starting from cursor

fn total_count<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Option<u64>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Get total record count (if known)

fn health_check<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Check if source is available

impl Default for WikidataClient

fn default() -> Self

Returns the “default value” for a type.