Struct CratesIoRegistry 

pub struct CratesIoRegistry { /* private fields */ }

Client for interacting with crates.io registry.

Uses the sparse index protocol for fast version lookups and the REST API for package search. All requests are cached via the provided HttpCache.

Implementations

impl CratesIoRegistry

pub const fn new(cache: Arc<HttpCache>) -> CratesIoRegistry

Creates a new registry client with the given HTTP cache.

pub async fn get_versions( &self, name: &str, ) -> Result<Vec<CargoVersion>, DepsError>

Fetches all versions for a crate from the sparse index.

Returns versions sorted newest-first. Includes yanked versions.

Errors

Returns an error if:

• HTTP request fails
• Response body is invalid UTF-8
• JSON parsing fails

Examples

let cache = Arc::new(HttpCache::new());
let registry = CratesIoRegistry::new(cache);

let versions = registry.get_versions("serde").await.unwrap();
assert!(!versions.is_empty());

pub async fn get_latest_matching( &self, name: &str, req_str: &str, ) -> Result<Option<CargoVersion>, DepsError>

Finds the latest version matching the given semver requirement.

Only returns non-yanked versions.

Errors

Returns an error if:

• Version requirement string is invalid semver
• HTTP request fails

Examples

let cache = Arc::new(HttpCache::new());
let registry = CratesIoRegistry::new(cache);

let latest = registry.get_latest_matching("serde", "^1.0").await.unwrap();
assert!(latest.is_some());

pub async fn search( &self, query: &str, limit: usize, ) -> Result<Vec<CrateInfo>, DepsError>

Searches for crates by name/keywords.

Returns up to limit results sorted by relevance.

Errors

Returns an error if:

• HTTP request fails
• JSON parsing fails

Examples

let cache = Arc::new(HttpCache::new());
let registry = CratesIoRegistry::new(cache);

let results = registry.search("serde", 10).await.unwrap();
assert!(!results.is_empty());

Trait Implementations

impl Clone for CratesIoRegistry

fn clone(&self) -> CratesIoRegistry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Registry for CratesIoRegistry

fn get_versions<'a>( &'a self, name: &'a str, ) -> Pin<Box<dyn Future<Output = Result<Vec<Box<dyn Version>>, DepsError>> + Send + 'a>>

Fetches all available versions for a package.

fn get_latest_matching<'a>( &'a self, name: &'a str, req: &'a str, ) -> Pin<Box<dyn Future<Output = Result<Option<Box<dyn Version>>, DepsError>> + Send + 'a>>

Finds the latest version matching a version requirement.

fn search<'a>( &'a self, query: &'a str, limit: usize, ) -> Pin<Box<dyn Future<Output = Result<Vec<Box<dyn Metadata>>, DepsError>> + Send + 'a>>

Searches for packages by name or keywords.

fn package_url(&self, name: &str) -> String

Package URL for ecosystem (e.g., https://crates.io/crates/serde)

fn as_any(&self) -> &(dyn Any + 'static)

Downcast to concrete registry type for ecosystem-specific operations