pub struct BackendRule {
    pub selector: String,
    pub address: String,
    pub deadline: f64,
    pub min_deadline: f64,
    pub operation_deadline: f64,
    pub path_translation: i32,
    pub protocol: String,
    pub overrides_by_request_protocol: BTreeMap<String, BackendRule>,
    pub authentication: Option<Authentication>,
}
Expand description

A backend rule provides configuration for an individual API element.

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§selector: String

Selects the methods to which this rule applies.

Refer to [selector][google.api.DocumentationRule.selector] for syntax details.

§address: String

The address of the API backend.

The scheme is used to determine the backend protocol and security. The following schemes are accepted:

SCHEME        PROTOCOL    SECURITY
http://       HTTP        None
https://      HTTP        TLS
grpc://       gRPC        None
grpcs://      gRPC        TLS

It is recommended to explicitly include a scheme. Leaving out the scheme may cause constrasting behaviors across platforms.

If the port is unspecified, the default is:

  • 80 for schemes without TLS
  • 443 for schemes with TLS

For HTTP backends, use [protocol][google.api.BackendRule.protocol] to specify the protocol version.

§deadline: f64

The number of seconds to wait for a response from a request. The default varies based on the request protocol and deployment environment.

§min_deadline: f64
👎Deprecated

Deprecated, do not use.

§operation_deadline: f64

The number of seconds to wait for the completion of a long running operation. The default is no deadline.

§path_translation: i32§protocol: String

The protocol used for sending a request to the backend. The supported values are “http/1.1” and “h2”.

The default value is inferred from the scheme in the [address][google.api.BackendRule.address] field:

SCHEME        PROTOCOL
http://       http/1.1
https://      http/1.1
grpc://       h2
grpcs://      h2

For secure HTTP backends (https://) that support HTTP/2, set this field to “h2” for improved performance.

Configuring this field to non-default values is only supported for secure HTTP backends. This field will be ignored for all other backends.

See https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids for more details on the supported values.

§overrides_by_request_protocol: BTreeMap<String, BackendRule>

The map between request protocol and the backend address.

§authentication: Option<Authentication>

Authentication settings used by the backend.

These are typically used to provide service management functionality to a backend served on a publicly-routable URL. The authentication details should match the authentication behavior used by the backend.

For example, specifying jwt_audience implies that the backend expects authentication via a JWT.

When authentication is unspecified, the resulting behavior is the same as disable_auth set to true.

Refer to https://developers.google.com/identity/protocols/OpenIDConnect for JWT ID token.

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impl BackendRule

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pub fn path_translation(&self) -> PathTranslation

Returns the enum value of path_translation, or the default if the field is set to an invalid enum value.

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pub fn set_path_translation(&mut self, value: PathTranslation)

Sets path_translation to the provided enum value.

Trait Implementations§

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impl Clone for BackendRule

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fn clone(&self) -> BackendRule

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BackendRule

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

Formats the value using the given formatter. Read more
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impl Default for BackendRule

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Message for BackendRule

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fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.
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fn clear(&mut self)

Clears the message, resetting all fields to their default.
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fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>
where B: BufMut, Self: Sized,

Encodes the message to a buffer. Read more
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fn encode_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message to a newly allocated buffer.
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fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>
where B: BufMut, Self: Sized,

Encodes the message with a length-delimiter to a buffer. Read more
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fn encode_length_delimited_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.
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fn decode<B>(buf: B) -> Result<Self, DecodeError>
where B: Buf, Self: Default,

Decodes an instance of the message from a buffer. Read more
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fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>
where B: Buf, Self: Default,

Decodes a length-delimited instance of the message from the buffer.
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fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>
where B: Buf, Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self. Read more
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fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>
where B: Buf, Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.
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impl PartialEq for BackendRule

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

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

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

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Performs the conversion.
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impl<T> WithSubscriber for T

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where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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