Enum HttpVersion 

#[non_exhaustive]
pub enum HttpVersion {
    Http2Only,
    Auto,
}

Which HTTP versions the default transport speaks.

The default is Http2Only for an https base URL and Auto for an http one.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Http2Only

HTTP/2 only: negotiated through TLS ALPN on https, and spoken with prior knowledge (h2c) on http.

Every request of a client shares one multiplexed connection, including requests started together on a client that has no connection yet.

Auto

HTTP/2 or HTTP/1.1 as the server chooses through ALPN on https, and HTTP/1.1 on http.

Use it behind a proxy that speaks HTTP/1.1 only. A client that has no connection yet may open one per request started at the same time, because which version the server speaks is known only once one of them is open.

Trait Implementations

impl Clone for HttpVersion

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HttpVersion

impl Debug for HttpVersion

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for HttpVersion

impl Hash for HttpVersion

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for HttpVersion

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for HttpVersion