Struct tonic::Interceptor

[+] Show declaration

pub struct Interceptor { /* fields omitted */ }

[−] Expand description

Represents a gRPC interceptor.

gRPC interceptors are similar to middleware but have much less flexibility. This interceptor allows you to do two main things, one is to add/remove/check items in the MetadataMap of each request. Two, cancel a request with any Status.

An interceptor can be used on both the server and client side through the tonic-build crate’s generated structs.

These interceptors do not allow you to modify the Message of the request but allow you to check for metadata. If you would like to apply middleware like features to the body of the request, going through the tower abstraction is recommended.

Implementations

impl Interceptor[−]

pub fn new(
    f: impl Fn(Request<()>) -> Result<Request<()>, Status> + Send + Sync + 'static
) -> Self[−]

Create a new Interceptor from the provided function.

Trait Implementations

impl Clone for Interceptor[+]

[+] Show hidden undocumented items

fn clone(&self) -> Interceptor[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Debug for Interceptor[+]

[+] Show hidden undocumented items

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

Formats the value using the given formatter.

impl<F> From<F> for Interceptor where
    F: Fn(Request<()>) -> Result<Request<()>, Status> + Send + Sync + 'static, [+]

[+] Show hidden undocumented items

fn from(f: F) -> Self[−]

Performs the conversion.