Struct Context 

#[non_exhaustive]
pub struct Context {
    pub rules: Vec<ContextRule>,
    /* private fields */
}

Context defines which contexts an API requests.

Example:

context:
  rules:
  - selector: "*"
    requested:
    - google.rpc.context.ProjectContext
    - google.rpc.context.OriginContext

The above specifies that all methods in the API request google.rpc.context.ProjectContext and google.rpc.context.OriginContext.

Available context types are defined in package google.rpc.context.

This also provides mechanism to allowlist any protobuf message extension that can be sent in grpc metadata using “x-goog-ext-<extension_id>-bin” and “x-goog-ext-<extension_id>-jspb” format. For example, list any service specific protobuf types that can appear in grpc metadata as follows in your yaml file:

Example:

context:
  rules:
   - selector: "google.example.library.v1.LibraryService.CreateBook"
     allowed_request_extensions:
     - google.foo.v1.NewExtension
     allowed_response_extensions:
     - google.foo.v1.NewExtension

You can also specify extension ID instead of fully qualified extension name here.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

rules: Vec<ContextRule>

A list of RPC context rules that apply to individual API methods.

NOTE: All service configuration rules follow “last one wins” order.

Implementations

impl Context

pub fn new() -> Self

pub fn set_rules<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<ContextRule>,

Sets the value of rules.

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Context

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

Formats the value using the given formatter.

impl Default for Context

fn default() -> Context

Returns the “default value” for a type.

impl Message for Context

fn typename() -> &'static str

The typename of this message.

impl PartialEq for Context

fn eq(&self, other: &Context) -> 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 Context