Struct Registry 

pub struct Registry {
    pub base_url: String,
}

An npm-compatible registry. Defaults to the public registry.

Fields

base_url: String

Implementations

impl Registry

pub fn npm() -> Self

The public npm registry (https://registry.npmjs.org).

pub fn with_base_url(base_url: impl Into<String>) -> Self

A registry at a custom base URL (e.g. a private mirror).

pub fn tarball_url(&self, name: &str, version: &str) -> String

Conventional tarball URL for an exact version. Handles scoped names: @scope/pkg → <base>/@scope/pkg/-/pkg-<version>.tgz.

pub fn packument(&self, name: &str) -> Result<Value, Box<dyn Error>>

Fetch the package metadata document (“packument”).

pub fn resolve( &self, name: &str, req: &VersionReq, ) -> Result<Resolved, Box<dyn Error>>

Resolve the newest published version of name matching req.

pub fn resolve_tree( &self, roots: &[(String, VersionReq)], ) -> Result<Vec<Resolved>, Box<dyn Error>>

Resolve the transitive dependency graph of roots into a flat set — one version per package name (the npm v3+ node_modules layout). Each package’s dependencies are read straight from the registry metadata (no tarball extraction), every child resolved to its newest matching version, and the set de-duplicated by name. Cyclic graphs terminate (a name is resolved once). Returns the packages sorted by name.

MVP limitation: a single version per package name. Two incompatible requirements on the same package — a genuine conflict npm would resolve by nesting — is reported as an error rather than silently mis-resolved.

Trait Implementations

impl Default for Registry

fn default() -> Self

Returns the “default value” for a type.