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get_range

rget::http

Function get_range 

Source 
pub async fn get_range(
    client: &Client,
    url: &Url,
    start: u64,
    end: Option<u64>,
    validator: Option<&str>,
    expected_total: Option<u64>,
) -> Result<Response, TransferError>
Expand description

A ranged GET, with the response validated against what we asked for.

validator is sent as If-Range, so a resource that changed since we started comes back as a 200 full body — which we detect and reject rather than splicing into the middle of our file (PRD Invariant 4).