Struct ValidateJsonLayer 

pub struct ValidateJsonLayer<T> { /* private fields */ }

A tower_layer::Layer that validates JSON request bodies with vld.

The type parameter T is the validated struct (must implement VldParse + Clone + Send + Sync + 'static).

Behaviour

1. Reads the full request body.
2. Parses as JSON and validates via T::vld_parse_value().
3. Valid — inserts T into request extensions, re-attaches the body bytes, and calls the inner service.
4. Invalid — returns 422 Unprocessable Entity with a JSON body containing the validation errors. The inner service is not called.

Requests without Content-Type: application/json (or missing content type) are passed through without validation.

Implementations

impl<T> ValidateJsonLayer<T>

pub fn new() -> Self

Create a new validation layer.

Trait Implementations

impl<T: Clone> Clone for ValidateJsonLayer<T>

fn clone(&self) -> ValidateJsonLayer<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Default for ValidateJsonLayer<T>

fn default() -> Self

Returns the “default value” for a type.

impl<S, T> Layer<S> for ValidateJsonLayer<T>

type Service = ValidateJsonService<S, T>

The wrapped service

fn layer(&self, inner: S) -> Self::Service

Wrap the given service with the middleware, returning a new service that has been decorated with the middleware.