Struct Fetcher 

pub struct Fetcher(/* private fields */);

A struct for invoking fetch events to other Workers.

Implementations

impl Fetcher

pub async fn fetch( &self, url: impl Into<String>, init: Option<RequestInit>, ) -> Result<HttpResponse>

Invoke a fetch event in a worker with a url and optionally a RequestInit.

Return type is Response unless http feature is enabled and then it is http::Response<worker::Body>.

pub async fn fetch_request<T, E>(&self, request: T) -> Result<HttpResponse>

where T: TryInto<Request, Error = E>, Error: From<E>,

Invoke a fetch event with an existing Request.

Argument type is Request or http::Request<worker::Body>.

Return type is Response unless http feature is enabled and then it is http::Response<worker::Body>.

pub fn into_rpc<T: JsCast>(self) -> T

Convert Fetcher into user-defined RPC interface.

#[wasm_bindgen]
extern "C" {
    #[wasm_bindgen(extends=js_sys::Object)]
    #[derive(Debug, Clone, PartialEq, Eq)]
    pub type MyRpcInterface;

    #[wasm_bindgen(method, catch)]
    pub fn add(
        this: &MyRpcInterface,
        a: u32,
        b: u32,
    ) -> std::result::Result<js_sys::Promise, JsValue>;
}

let rpc: MyRpcInterface = fetcher.into_rpc();
let result = rpc.add(1, 2);

Trait Implementations

impl AsRef<JsValue> for Fetcher

fn as_ref(&self) -> &JsValue

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

impl Clone for Fetcher

fn clone(&self) -> Fetcher

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Fetcher

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

Formats the value using the given formatter.

impl EnvBinding for Fetcher

const TYPE_NAME: &'static str = "Fetcher"

fn get(val: JsValue) -> Result<Self>

impl From<Fetcher> for Fetcher

fn from(inner: Fetcher) -> Self

Converts to this type from the input type.

impl From<Fetcher> for JsValue

fn from(service: Fetcher) -> Self

Converts to this type from the input type.

impl JsCast for Fetcher

fn instanceof(val: &JsValue) -> bool

Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type.

fn unchecked_from_js(val: JsValue) -> Self

Performs a zero-cost unchecked conversion from a JsValue into an instance of Self

fn unchecked_from_js_ref(val: &JsValue) -> &Self

Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self.

fn has_type<T>(&self) -> bool

where T: JsCast,

Test whether this JS value has a type T.

fn dyn_into<T>(self) -> Result<T, Self>

where T: JsCast,

Performs a dynamic cast (checked at runtime) of this value into the target type T.

fn dyn_ref<T>(&self) -> Option<&T>

where T: JsCast,

Performs a dynamic cast (checked at runtime) of this value into the target type T.

fn unchecked_into<T>(self) -> T

where T: JsCast,

Performs a zero-cost unchecked cast into the specified type.

fn unchecked_ref<T>(&self) -> &T

where T: JsCast,

Performs a zero-cost unchecked cast into a reference to the specified type.

fn is_instance_of<T>(&self) -> bool

where T: JsCast,

Test whether this JS value is an instance of the type T.

fn is_type_of(val: &JsValue) -> bool

Performs a dynamic check to see whether the JsValue provided is a value of this type.