Trait DnsResolver 

pub trait DnsResolver:
    Debug
    + Send
    + Sync
    + UnwindSafe
    + RefUnwindSafe {
    // Required method
    fn resolve(&self, host: &str) -> DnsFuture;
}

Available on crate feature cloud-base and non-WebAssembly only.

A custom DNS resolver used when establishing connections to remote object stores

This can be used to implement custom resolution logic such as caching, address shuffling, or split-horizon DNS, independent of the underlying HTTP transport.

Configure via ClientOptions::with_dns_resolver. The built-in reqwest-based transport honors this automatically; custom HttpConnector implementations should retrieve it via ClientOptions::dns_resolver and apply it themselves.

Required Methods

fn resolve(&self, host: &str) -> DnsFuture

Resolve host to one or more IP addresses

The returned addresses are tried in order until a connection succeeds, so implementations are responsible for any ordering they require, e.g. shuffling or interleaving of address families. The port is determined by the transport from the URL, not by the resolver.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors