Enum aws_sdk_appmesh::model::HttpMethod

#[non_exhaustive]
pub enum HttpMethod {
    Connect,
    Delete,
    Get,
    Head,
    Options,
    Patch,
    Post,
    Put,
    Trace,
    Unknown(UnknownVariantValue),
}

When writing a match expression against HttpMethod, it is important to ensure your code is forward-compatible. That is, if a match arm handles a case for a feature that is supported by the service but has not been represented as an enum variant in a current version of SDK, your code should continue to work when you upgrade SDK to a future version in which the enum does include a variant for that feature.

Here is an example of how you can make a match expression forward-compatible:

# let httpmethod = unimplemented!();
match httpmethod {
    HttpMethod::Connect => { /* ... */ },
    HttpMethod::Delete => { /* ... */ },
    HttpMethod::Get => { /* ... */ },
    HttpMethod::Head => { /* ... */ },
    HttpMethod::Options => { /* ... */ },
    HttpMethod::Patch => { /* ... */ },
    HttpMethod::Post => { /* ... */ },
    HttpMethod::Put => { /* ... */ },
    HttpMethod::Trace => { /* ... */ },
    other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
    _ => { /* ... */ },
}

The above code demonstrates that when httpmethod represents NewFeature, the execution path will lead to the second last match arm, even though the enum does not contain a variant HttpMethod::NewFeature in the current version of SDK. The reason is that the variable other, created by the @ operator, is bound to HttpMethod::Unknown(UnknownVariantValue("NewFeature".to_owned())) and calling as_str on it yields "NewFeature". This match expression is forward-compatible when executed with a newer version of SDK where the variant HttpMethod::NewFeature is defined. Specifically, when httpmethod represents NewFeature, the execution path will hit the second last match arm as before by virtue of calling as_str on HttpMethod::NewFeature also yielding "NewFeature".

Explicitly matching on the Unknown variant should be avoided for two reasons:

• The inner data UnknownVariantValue is opaque, and no further information can be extracted.
• It might inadvertently shadow other intended match arms.

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.

Connect

Delete

Get

Head

Options

Patch

Post

Put

Trace

Unknown(UnknownVariantValue)

Unknown contains new variants that have been added since this code was generated.

Implementations

impl HttpMethod

pub fn as_str(&self) -> &str

Returns the &str value of the enum member.

Examples found in repository

src/model.rs (line 5321)

    fn as_ref(&self) -> &str {
        self.as_str()
    }

src/json_ser.rs (line 1096)

pub fn serialize_structure_crate_model_http_gateway_route_match(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::HttpGatewayRouteMatch,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_202) = &input.prefix {
        object.key("prefix").string(var_202.as_str());
    }
    if let Some(var_203) = &input.path {
        #[allow(unused_mut)]
        let mut object_204 = object.key("path").start_object();
        crate::json_ser::serialize_structure_crate_model_http_path_match(&mut object_204, var_203)?;
        object_204.finish();
    }
    if let Some(var_205) = &input.query_parameters {
        let mut array_206 = object.key("queryParameters").start_array();
        for item_207 in var_205 {
            {
                #[allow(unused_mut)]
                let mut object_208 = array_206.value().start_object();
                crate::json_ser::serialize_structure_crate_model_http_query_parameter(
                    &mut object_208,
                    item_207,
                )?;
                object_208.finish();
            }
        }
        array_206.finish();
    }
    if let Some(var_209) = &input.method {
        object.key("method").string(var_209.as_str());
    }
    if let Some(var_210) = &input.hostname {
        #[allow(unused_mut)]
        let mut object_211 = object.key("hostname").start_object();
        crate::json_ser::serialize_structure_crate_model_gateway_route_hostname_match(
            &mut object_211,
            var_210,
        )?;
        object_211.finish();
    }
    if let Some(var_212) = &input.headers {
        let mut array_213 = object.key("headers").start_array();
        for item_214 in var_212 {
            {
                #[allow(unused_mut)]
                let mut object_215 = array_213.value().start_object();
                crate::json_ser::serialize_structure_crate_model_http_gateway_route_header(
                    &mut object_215,
                    item_214,
                )?;
                object_215.finish();
            }
        }
        array_213.finish();
    }
    if let Some(var_216) = &input.port {
        object.key("port").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_216).into()),
        );
    }
    Ok(())
}

pub fn serialize_structure_crate_model_http_gateway_route_action(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::HttpGatewayRouteAction,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_217) = &input.target {
        #[allow(unused_mut)]
        let mut object_218 = object.key("target").start_object();
        crate::json_ser::serialize_structure_crate_model_gateway_route_target(
            &mut object_218,
            var_217,
        )?;
        object_218.finish();
    }
    if let Some(var_219) = &input.rewrite {
        #[allow(unused_mut)]
        let mut object_220 = object.key("rewrite").start_object();
        crate::json_ser::serialize_structure_crate_model_http_gateway_route_rewrite(
            &mut object_220,
            var_219,
        )?;
        object_220.finish();
    }
    Ok(())
}

pub fn serialize_structure_crate_model_grpc_gateway_route_match(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::GrpcGatewayRouteMatch,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_221) = &input.service_name {
        object.key("serviceName").string(var_221.as_str());
    }
    if let Some(var_222) = &input.hostname {
        #[allow(unused_mut)]
        let mut object_223 = object.key("hostname").start_object();
        crate::json_ser::serialize_structure_crate_model_gateway_route_hostname_match(
            &mut object_223,
            var_222,
        )?;
        object_223.finish();
    }
    if let Some(var_224) = &input.metadata {
        let mut array_225 = object.key("metadata").start_array();
        for item_226 in var_224 {
            {
                #[allow(unused_mut)]
                let mut object_227 = array_225.value().start_object();
                crate::json_ser::serialize_structure_crate_model_grpc_gateway_route_metadata(
                    &mut object_227,
                    item_226,
                )?;
                object_227.finish();
            }
        }
        array_225.finish();
    }
    if let Some(var_228) = &input.port {
        object.key("port").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_228).into()),
        );
    }
    Ok(())
}

pub fn serialize_structure_crate_model_grpc_gateway_route_action(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::GrpcGatewayRouteAction,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_229) = &input.target {
        #[allow(unused_mut)]
        let mut object_230 = object.key("target").start_object();
        crate::json_ser::serialize_structure_crate_model_gateway_route_target(
            &mut object_230,
            var_229,
        )?;
        object_230.finish();
    }
    if let Some(var_231) = &input.rewrite {
        #[allow(unused_mut)]
        let mut object_232 = object.key("rewrite").start_object();
        crate::json_ser::serialize_structure_crate_model_grpc_gateway_route_rewrite(
            &mut object_232,
            var_231,
        )?;
        object_232.finish();
    }
    Ok(())
}

pub fn serialize_structure_crate_model_http_route_match(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::HttpRouteMatch,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_233) = &input.prefix {
        object.key("prefix").string(var_233.as_str());
    }
    if let Some(var_234) = &input.path {
        #[allow(unused_mut)]
        let mut object_235 = object.key("path").start_object();
        crate::json_ser::serialize_structure_crate_model_http_path_match(&mut object_235, var_234)?;
        object_235.finish();
    }
    if let Some(var_236) = &input.query_parameters {
        let mut array_237 = object.key("queryParameters").start_array();
        for item_238 in var_236 {
            {
                #[allow(unused_mut)]
                let mut object_239 = array_237.value().start_object();
                crate::json_ser::serialize_structure_crate_model_http_query_parameter(
                    &mut object_239,
                    item_238,
                )?;
                object_239.finish();
            }
        }
        array_237.finish();
    }
    if let Some(var_240) = &input.method {
        object.key("method").string(var_240.as_str());
    }
    if let Some(var_241) = &input.scheme {
        object.key("scheme").string(var_241.as_str());
    }
    if let Some(var_242) = &input.headers {
        let mut array_243 = object.key("headers").start_array();
        for item_244 in var_242 {
            {
                #[allow(unused_mut)]
                let mut object_245 = array_243.value().start_object();
                crate::json_ser::serialize_structure_crate_model_http_route_header(
                    &mut object_245,
                    item_244,
                )?;
                object_245.finish();
            }
        }
        array_243.finish();
    }
    if let Some(var_246) = &input.port {
        object.key("port").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_246).into()),
        );
    }
    Ok(())
}

pub const fn values() -> &'static [&'static str]

Returns all the &str values of the enum members.

Trait Implementations

impl AsRef<str> for HttpMethod

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for HttpMethod

fn clone(&self) -> HttpMethod

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HttpMethod

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

Formats the value using the given formatter.

impl From<&str> for HttpMethod

fn from(s: &str) -> Self

Converts to this type from the input type.

impl FromStr for HttpMethod

type Err = Infallible

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for HttpMethod

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 Ord for HttpMethod

fn cmp(&self, other: &HttpMethod) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<HttpMethod> for HttpMethod

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd<HttpMethod> for HttpMethod

fn partial_cmp(&self, other: &HttpMethod) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for HttpMethod

impl StructuralEq for HttpMethod

impl StructuralPartialEq for HttpMethod