Enum Protocol 

#[non_exhaustive]
pub enum Protocol {
    Http1,
    Http2,
    Alpn,
}

HTTP protocol version to use for connections.

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.

Http1

HTTP/1.1 only (default).

Http2

HTTP/2 only.

Over HTTPS, ALPN is configured automatically — the server selects HTTP/2 during the TLS handshake if it supports it. Over plain HTTP and unix://, prior-knowledge HTTP/2 is used: the client speaks HTTP/2 directly without an Upgrade round trip. Use this only when you know the server supports HTTP/2 on that transport.

Alpn

Negotiate HTTP/1.1 or HTTP/2 automatically.

Over HTTPS, ALPN is used: the server selects HTTP/1.1 or HTTP/2 during the TLS handshake. Over plain HTTP and unix://, there is no TLS handshake, so ALPN cannot negotiate a protocol and the connection always falls back to HTTP/1.1 — use http2 explicitly for prior-knowledge HTTP/2 on those transports.

Trait Implementations

impl Clone for Protocol

fn clone(&self) -> Protocol

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Protocol

impl Debug for Protocol

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

Formats the value using the given formatter.

impl Default for Protocol

fn default() -> Protocol

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Protocol

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Protocol

impl JsonSchema for Protocol

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for Protocol

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Protocol

impl Validate for Protocol

fn validate<'a>(&self, _errors: ErrorCollector<'a>)

The default implementation of validate accepts all inputs.