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lib.rs
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#![forbid(unsafe_code)]
//! Provides functions to easily integrate Leptos with Actix.
//!
//! For more details on how to use the integrations, see the
//! [`examples`](https://github.com/leptos-rs/leptos/tree/main/examples)
//! directory in the Leptos repository.
use actix_http::header::{HeaderName, HeaderValue};
use actix_web::{
body::BoxBody,
dev::{ServiceFactory, ServiceRequest},
http::header,
web::{Bytes, ServiceConfig},
*,
};
use futures::{Stream, StreamExt};
use http::StatusCode;
use leptos::{
leptos_server::{server_fn_by_path, Payload},
server_fn::Encoding,
ssr::render_to_stream_with_prefix_undisposed_with_context_and_block_replacement,
*,
};
use leptos_integration_utils::{build_async_response, html_parts_separated};
use leptos_meta::*;
use leptos_router::*;
use parking_lot::RwLock;
use regex::Regex;
use std::{
fmt::{Debug, Display},
future::Future,
pin::Pin,
sync::Arc,
};
#[cfg(debug_assertions)]
use tracing::instrument;
/// This struct lets you define headers and override the status of the Response from an Element or a Server Function
/// Typically contained inside of a ResponseOptions. Setting this is useful for cookies and custom responses.
#[derive(Debug, Clone, Default)]
pub struct ResponseParts {
pub headers: header::HeaderMap,
pub status: Option<StatusCode>,
}
impl ResponseParts {
/// Insert a header, overwriting any previous value with the same key
pub fn insert_header(
&mut self,
key: header::HeaderName,
value: header::HeaderValue,
) {
self.headers.insert(key, value);
}
/// Append a header, leaving any header with the same key intact
pub fn append_header(
&mut self,
key: header::HeaderName,
value: header::HeaderValue,
) {
self.headers.append(key, value);
}
}
/// Allows you to override details of the HTTP response like the status code and add Headers/Cookies.
#[derive(Debug, Clone, Default)]
pub struct ResponseOptions(pub Arc<RwLock<ResponseParts>>);
impl ResponseOptions {
/// A simpler way to overwrite the contents of `ResponseOptions` with a new `ResponseParts`.
pub fn overwrite(&self, parts: ResponseParts) {
let mut writable = self.0.write();
*writable = parts
}
/// Set the status of the returned Response.
pub fn set_status(&self, status: StatusCode) {
let mut writeable = self.0.write();
let res_parts = &mut *writeable;
res_parts.status = Some(status);
}
/// Insert a header, overwriting any previous value with the same key.
pub fn insert_header(
&self,
key: header::HeaderName,
value: header::HeaderValue,
) {
let mut writeable = self.0.write();
let res_parts = &mut *writeable;
res_parts.headers.insert(key, value);
}
/// Append a header, leaving any header with the same key intact.
pub fn append_header(
&self,
key: header::HeaderName,
value: header::HeaderValue,
) {
let mut writeable = self.0.write();
let res_parts = &mut *writeable;
res_parts.headers.append(key, value);
}
}
/// Provides an easy way to redirect the user from within a server function. Mimicking the Remix `redirect()`,
/// it sets a [StatusCode] of 302 and a [LOCATION](header::LOCATION) header with the provided value.
/// If looking to redirect from the client, `leptos_router::use_navigate()` should be used instead.
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn redirect(path: &str) {
if let Some(response_options) = use_context::<ResponseOptions>() {
response_options.set_status(StatusCode::FOUND);
response_options.insert_header(
header::LOCATION,
header::HeaderValue::from_str(path)
.expect("Failed to create HeaderValue"),
);
}
}
/// An Actix [struct@Route](actix_web::Route) that listens for a `POST` request with
/// Leptos server function arguments in the body, runs the server function if found,
/// and returns the resulting [HttpResponse].
///
/// This can then be set up at an appropriate route in your application:
///
/// ```
/// use actix_web::*;
///
/// fn register_server_functions() {
/// // call ServerFn::register() for each of the server functions you've defined
/// }
///
/// # if false { // don't actually try to run a server in a doctest...
/// #[actix_web::main]
/// async fn main() -> std::io::Result<()> {
/// // make sure you actually register your server functions
/// register_server_functions();
///
/// HttpServer::new(|| {
/// App::new()
/// // "/api" should match the prefix, if any, declared when defining server functions
/// // {tail:.*} passes the remainder of the URL as the server function name
/// .route("/api/{tail:.*}", leptos_actix::handle_server_fns())
/// })
/// .bind(("127.0.0.1", 8080))?
/// .run()
/// .await
/// }
/// # }
/// ```
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn handle_server_fns() -> Route {
handle_server_fns_with_context(|| {})
}
/// An Actix [struct@Route](actix_web::Route) that listens for `GET` or `POST` requests with
/// Leptos server function arguments in the URL (`GET`) or body (`POST`),
/// runs the server function if found, and returns the resulting [HttpResponse].
///
/// This can then be set up at an appropriate route in your application:
///
/// This version allows you to pass in a closure that adds additional route data to the
/// context, allowing you to pass in info about the route or user from Actix, or other info.
///
/// **NOTE**: If your server functions expect a context, make sure to provide it both in
/// [`handle_server_fns_with_context`] **and** in [`leptos_routes_with_context`] (or whatever
/// rendering method you are using). During SSR, server functions are called by the rendering
/// method, while subsequent calls from the client are handled by the server function handler.
/// The same context needs to be provided to both handlers.
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn handle_server_fns_with_context(
additional_context: impl Fn() + 'static + Clone + Send,
) -> Route {
web::to(
move |req: HttpRequest, params: web::Path<String>, body: web::Bytes| {
let additional_context = additional_context.clone();
async move {
let additional_context = additional_context.clone();
let path = params.into_inner();
let accept_header = req
.headers()
.get("Accept")
.and_then(|value| value.to_str().ok());
if let Some(server_fn) = server_fn_by_path(path.as_str()) {
let body_ref: &[u8] = &body;
let runtime = create_runtime();
// Add additional info to the context of the server function
additional_context();
let res_options = ResponseOptions::default();
// provide HttpRequest as context in server scope
provide_context(req.clone());
provide_context(res_options.clone());
// we consume the body here (using the web::Bytes extractor), but it is required for things
// like MultipartForm
if req
.headers()
.get("Content-Type")
.and_then(|value| value.to_str().ok())
.map(|value| {
value.starts_with("multipart/form-data; boundary=")
})
== Some(true)
{
provide_context(body.clone());
}
let query = req.query_string().as_bytes();
let data = match &server_fn.encoding() {
Encoding::Url | Encoding::Cbor => body_ref,
Encoding::GetJSON | Encoding::GetCBOR => query,
};
let res = match server_fn.call((), data).await {
Ok(serialized) => {
let res_options =
use_context::<ResponseOptions>().unwrap();
let mut res: HttpResponseBuilder =
HttpResponse::Ok();
let res_parts = res_options.0.write();
// if accept_header isn't set to one of these, it's a form submit
// redirect back to the referrer if not redirect has been set
if accept_header != Some("application/json")
&& accept_header
!= Some("application/x-www-form-urlencoded")
&& accept_header != Some("application/cbor")
{
// Location will already be set if redirect() has been used
let has_location_set =
res_parts.headers.get("Location").is_some();
if !has_location_set {
let referer = req
.headers()
.get("Referer")
.and_then(|value| value.to_str().ok())
.unwrap_or("/");
res = HttpResponse::SeeOther();
res.insert_header(("Location", referer))
.content_type("application/json");
}
};
// Override StatusCode if it was set in a Resource or Element
if let Some(status) = res_parts.status {
res.status(status);
}
// Use provided ResponseParts headers if they exist
let _count = res_parts
.headers
.clone()
.into_iter()
.map(|(k, v)| {
res.append_header((k, v));
})
.count();
match serialized {
Payload::Binary(data) => {
res.content_type("application/cbor");
res.body(Bytes::from(data))
}
Payload::Url(data) => {
res.content_type(
"application/x-www-form-urlencoded",
);
res.body(data)
}
Payload::Json(data) => {
res.content_type("application/json");
res.body(data)
}
}
}
Err(e) => HttpResponse::InternalServerError().body(
serde_json::to_string(&e)
.unwrap_or_else(|_| e.to_string()),
),
};
// clean up the scope
runtime.dispose();
res
} else {
HttpResponse::BadRequest().body(format!(
"Could not find a server function at the route {:?}. \
\n\nIt's likely that either
1. The API prefix you specify in the `#[server]` \
macro doesn't match the prefix at which your server \
function handler is mounted, or \n2. You are on a \
platform that doesn't support automatic server \
function registration and you need to call \
ServerFn::register_explicit() on the server function \
type, somewhere in your `main` function.",
req.path()
))
}
}
},
)
}
/// Returns an Actix [struct@Route](actix_web::Route) that listens for a `GET` request and tries
/// to route it using [leptos_router], serving an HTML stream of your application. The stream
/// will include fallback content for any `<Suspense/>` nodes, and be immediately interactive,
/// but requires some client-side JavaScript.
///
/// The provides a [MetaContext] and a [RouterIntegrationContext] to app’s context before
/// rendering it, and includes any meta tags injected using [leptos_meta].
///
/// The HTML stream is rendered using [render_to_stream](leptos::ssr::render_to_stream), and
/// includes everything described in the documentation for that function.
///
/// This can then be set up at an appropriate route in your application:
/// ```
/// use actix_web::{App, HttpServer};
/// use leptos::*;
/// use leptos_router::Method;
/// use std::{env, net::SocketAddr};
///
/// #[component]
/// fn MyApp() -> impl IntoView {
/// view! { <main>"Hello, world!"</main> }
/// }
///
/// # if false { // don't actually try to run a server in a doctest...
/// #[actix_web::main]
/// async fn main() -> std::io::Result<()> {
/// let conf = get_configuration(Some("Cargo.toml")).await.unwrap();
/// let addr = conf.leptos_options.site_addr.clone();
/// HttpServer::new(move || {
/// let leptos_options = &conf.leptos_options;
///
/// App::new()
/// // {tail:.*} passes the remainder of the URL as the route
/// // the actual routing will be handled by `leptos_router`
/// .route(
/// "/{tail:.*}",
/// leptos_actix::render_app_to_stream(
/// leptos_options.to_owned(),
/// || view! { <MyApp/> },
/// Method::Get,
/// ),
/// )
/// })
/// .bind(&addr)?
/// .run()
/// .await
/// }
/// # }
/// ```
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
/// - [MetaContext](leptos_meta::MetaContext)
/// - [RouterIntegrationContext](leptos_router::RouterIntegrationContext)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn render_app_to_stream<IV>(
options: LeptosOptions,
app_fn: impl Fn() -> IV + Clone + 'static,
method: Method,
) -> Route
where
IV: IntoView,
{
render_app_to_stream_with_context(options, || {}, app_fn, method)
}
/// Returns an Actix [struct@Route](actix_web::Route) that listens for a `GET` request and tries
/// to route it using [leptos_router], serving an in-order HTML stream of your application.
/// This stream will pause at each `<Suspense/>` node and wait for it to resolve before
/// sending down its HTML. The app will become interactive once it has fully loaded.
///
/// The provides a [MetaContext] and a [RouterIntegrationContext] to app’s context before
/// rendering it, and includes any meta tags injected using [leptos_meta].
///
/// The HTML stream is rendered using
/// [render_to_stream_in_order](leptos::ssr::render_to_stream_in_order),
/// and includes everything described in the documentation for that function.
///
/// This can then be set up at an appropriate route in your application:
/// ```
/// use actix_web::{App, HttpServer};
/// use leptos::*;
/// use leptos_router::Method;
/// use std::{env, net::SocketAddr};
///
/// #[component]
/// fn MyApp() -> impl IntoView {
/// view! { <main>"Hello, world!"</main> }
/// }
///
/// # if false { // don't actually try to run a server in a doctest...
/// #[actix_web::main]
/// async fn main() -> std::io::Result<()> {
/// let conf = get_configuration(Some("Cargo.toml")).await.unwrap();
/// let addr = conf.leptos_options.site_addr.clone();
/// HttpServer::new(move || {
/// let leptos_options = &conf.leptos_options;
///
/// App::new()
/// // {tail:.*} passes the remainder of the URL as the route
/// // the actual routing will be handled by `leptos_router`
/// .route(
/// "/{tail:.*}",
/// leptos_actix::render_app_to_stream_in_order(
/// leptos_options.to_owned(),
/// || view! { <MyApp/> },
/// Method::Get,
/// ),
/// )
/// })
/// .bind(&addr)?
/// .run()
/// .await
/// }
/// # }
/// ```
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
/// - [MetaContext](leptos_meta::MetaContext)
/// - [RouterIntegrationContext](leptos_router::RouterIntegrationContext)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn render_app_to_stream_in_order<IV>(
options: LeptosOptions,
app_fn: impl Fn() -> IV + Clone + 'static,
method: Method,
) -> Route
where
IV: IntoView,
{
render_app_to_stream_in_order_with_context(options, || {}, app_fn, method)
}
/// Returns an Actix [struct@Route](actix_web::Route) that listens for a `GET` request and tries
/// to route it using [leptos_router], asynchronously rendering an HTML page after all
/// `async` [Resource](leptos::Resource)s have loaded.
///
/// The provides a [MetaContext] and a [RouterIntegrationContext] to the app’s context before
/// rendering it, and includes any meta tags injected using [leptos_meta].
///
/// The HTML stream is rendered using [render_to_string_async](leptos::ssr::render_to_string_async), and
/// includes everything described in the documentation for that function.
///
/// This can then be set up at an appropriate route in your application:
/// ```
/// use actix_web::{App, HttpServer};
/// use leptos::*;
/// use leptos_router::Method;
/// use std::{env, net::SocketAddr};
///
/// #[component]
/// fn MyApp() -> impl IntoView {
/// view! { <main>"Hello, world!"</main> }
/// }
///
/// # if false { // don't actually try to run a server in a doctest...
/// #[actix_web::main]
/// async fn main() -> std::io::Result<()> {
/// let conf = get_configuration(Some("Cargo.toml")).await.unwrap();
/// let addr = conf.leptos_options.site_addr.clone();
/// HttpServer::new(move || {
/// let leptos_options = &conf.leptos_options;
///
/// App::new()
/// // {tail:.*} passes the remainder of the URL as the route
/// // the actual routing will be handled by `leptos_router`
/// .route(
/// "/{tail:.*}",
/// leptos_actix::render_app_async(
/// leptos_options.to_owned(),
/// || view! { <MyApp/> },
/// Method::Get,
/// ),
/// )
/// })
/// .bind(&addr)?
/// .run()
/// .await
/// }
/// # }
/// ```
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
/// - [MetaContext](leptos_meta::MetaContext)
/// - [RouterIntegrationContext](leptos_router::RouterIntegrationContext)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn render_app_async<IV>(
options: LeptosOptions,
app_fn: impl Fn() -> IV + Clone + 'static,
method: Method,
) -> Route
where
IV: IntoView,
{
render_app_async_with_context(options, || {}, app_fn, method)
}
/// Returns an Actix [struct@Route] that listens for a `GET` request and tries
/// to route it using [leptos_router], serving an HTML stream of your application.
///
/// This function allows you to provide additional information to Leptos for your route.
/// It could be used to pass in Path Info, Connection Info, or anything your heart desires.
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
/// - [MetaContext](leptos_meta::MetaContext)
/// - [RouterIntegrationContext](leptos_router::RouterIntegrationContext)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn render_app_to_stream_with_context<IV>(
options: LeptosOptions,
additional_context: impl Fn() + 'static + Clone + Send,
app_fn: impl Fn() -> IV + Clone + 'static,
method: Method,
) -> Route
where
IV: IntoView,
{
render_app_to_stream_with_context_and_replace_blocks(
options,
additional_context,
app_fn,
method,
false,
)
}
/// Returns an Actix [struct@Route](actix_web::Route) that listens for a `GET` request and tries
/// to route it using [leptos_router], serving an HTML stream of your application.
///
/// This function allows you to provide additional information to Leptos for your route.
/// It could be used to pass in Path Info, Connection Info, or anything your heart desires.
///
/// `replace_blocks` additionally lets you specify whether `<Suspense/>` fragments that read
/// from blocking resources should be retrojected into the HTML that's initially served, rather
/// than dynamically inserting them with JavaScript on the client. This means you will have
/// better support if JavaScript is not enabled, in exchange for a marginally slower response time.
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
/// - [MetaContext](leptos_meta::MetaContext)
/// - [RouterIntegrationContext](leptos_router::RouterIntegrationContext)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn render_app_to_stream_with_context_and_replace_blocks<IV>(
options: LeptosOptions,
additional_context: impl Fn() + 'static + Clone + Send,
app_fn: impl Fn() -> IV + Clone + 'static,
method: Method,
replace_blocks: bool,
) -> Route
where
IV: IntoView,
{
let handler = move |req: HttpRequest| {
let options = options.clone();
let app_fn = app_fn.clone();
let additional_context = additional_context.clone();
let res_options = ResponseOptions::default();
async move {
let app = {
let app_fn = app_fn.clone();
let res_options = res_options.clone();
move || {
provide_contexts(&req, res_options);
(app_fn)().into_view()
}
};
stream_app(
&options,
app,
res_options,
additional_context,
replace_blocks,
)
.await
}
};
match method {
Method::Get => web::get().to(handler),
Method::Post => web::post().to(handler),
Method::Put => web::put().to(handler),
Method::Delete => web::delete().to(handler),
Method::Patch => web::patch().to(handler),
}
}
/// Returns an Actix [struct@Route](actix_web::Route) that listens for a `GET` request and tries
/// to route it using [leptos_router], serving an in-order HTML stream of your application.
///
/// This function allows you to provide additional information to Leptos for your route.
/// It could be used to pass in Path Info, Connection Info, or anything your heart desires.
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
/// - [MetaContext](leptos_meta::MetaContext)
/// - [RouterIntegrationContext](leptos_router::RouterIntegrationContext)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn render_app_to_stream_in_order_with_context<IV>(
options: LeptosOptions,
additional_context: impl Fn() + 'static + Clone + Send,
app_fn: impl Fn() -> IV + Clone + 'static,
method: Method,
) -> Route
where
IV: IntoView,
{
let handler = move |req: HttpRequest| {
let options = options.clone();
let app_fn = app_fn.clone();
let additional_context = additional_context.clone();
let res_options = ResponseOptions::default();
async move {
let app = {
let app_fn = app_fn.clone();
let res_options = res_options.clone();
move || {
provide_contexts(&req, res_options);
(app_fn)().into_view()
}
};
stream_app_in_order(&options, app, res_options, additional_context)
.await
}
};
match method {
Method::Get => web::get().to(handler),
Method::Post => web::post().to(handler),
Method::Put => web::put().to(handler),
Method::Delete => web::delete().to(handler),
Method::Patch => web::patch().to(handler),
}
}
/// Returns an Actix [struct@Route](actix_web::Route) that listens for a `GET` request and tries
/// to route it using [leptos_router], asynchronously serving the page once all `async`
/// [Resource](leptos::Resource)s have loaded.
///
/// This function allows you to provide additional information to Leptos for your route.
/// It could be used to pass in Path Info, Connection Info, or anything your heart desires.
///
/// ## Provided Context Types
/// This function always provides context values including the following types:
/// - [ResponseOptions]
/// - [HttpRequest](actix_web::HttpRequest)
/// - [MetaContext](leptos_meta::MetaContext)
/// - [RouterIntegrationContext](leptos_router::RouterIntegrationContext)
#[tracing::instrument(level = "trace", fields(error), skip_all)]
pub fn render_app_async_with_context<IV>(
options: LeptosOptions,
additional_context: impl Fn() + 'static + Clone + Send,
app_fn: impl Fn() -> IV + Clone + 'static,
method: Method,
) -> Route
where
IV: IntoView,
{
let handler = move |req: HttpRequest| {
let options = options.clone();
let app_fn = app_fn.clone();
let additional_context = additional_context.clone();
let res_options = ResponseOptions::default();
async move {
let app = {
let app_fn = app_fn.clone();
let res_options = res_options.clone();
move || {
provide_contexts(&req, res_options);
(app_fn)().into_view()
}
};
render_app_async_helper(
&options,
app,
res_options,
additional_context,
)
.await
}
};
match method {
Method::Get => web::get().to(handler),
Method::Post => web::post().to(handler),
Method::Put => web::put().to(handler),
Method::Delete => web::delete().to(handler),
Method::Patch => web::patch().to(handler),
}
}
#[tracing::instrument(level = "trace", fields(error), skip_all)]
fn provide_contexts(req: &HttpRequest, res_options: ResponseOptions) {
let path = leptos_corrected_path(req);
let integration = ServerIntegration { path };
provide_context(RouterIntegrationContext::new(integration));
provide_context(MetaContext::new());
provide_context(res_options);
provide_context(req.clone());
provide_server_redirect(redirect);
#[cfg(feature = "nonce")]
leptos::nonce::provide_nonce();
}
fn leptos_corrected_path(req: &HttpRequest) -> String {
let path = req.path();
let query = req.query_string();
if query.is_empty() {
"http://leptos".to_string() + path
} else {
"http://leptos".to_string() + path + "?" + query
}
}
#[tracing::instrument(level = "trace", fields(error), skip_all)]
async fn stream_app(
options: &LeptosOptions,
app: impl FnOnce() -> View + 'static,
res_options: ResponseOptions,
additional_context: impl Fn() + 'static + Clone + Send,
replace_blocks: bool,
) -> HttpResponse<BoxBody> {
let (stream, runtime) =
render_to_stream_with_prefix_undisposed_with_context_and_block_replacement(
app,
move || generate_head_metadata_separated().1.into(),
additional_context,
replace_blocks
);
build_stream_response(options, res_options, stream, runtime).await
}
#[cfg_attr(
any(debug_assertions, feature = "ssr"),
instrument(level = "trace", skip_all,)
)]
async fn stream_app_in_order(
options: &LeptosOptions,
app: impl FnOnce() -> View + 'static,
res_options: ResponseOptions,
additional_context: impl Fn() + 'static + Clone + Send,
) -> HttpResponse<BoxBody> {
let (stream, runtime) =
leptos::ssr::render_to_stream_in_order_with_prefix_undisposed_with_context(
app,
move || {
generate_head_metadata_separated().1.into()
},
additional_context,
);
build_stream_response(options, res_options, stream, runtime).await
}
#[tracing::instrument(level = "trace", fields(error), skip_all)]
async fn build_stream_response(
options: &LeptosOptions,
res_options: ResponseOptions,
stream: impl Stream<Item = String> + 'static,
runtime: RuntimeId,
) -> HttpResponse {
let mut stream = Box::pin(stream);
// wait for any blocking resources to load before pulling metadata
let first_app_chunk = stream.next().await.unwrap_or_default();
let (head, tail) =
html_parts_separated(options, use_context::<MetaContext>().as_ref());
let mut stream = Box::pin(
futures::stream::once(async move { head.clone() })
.chain(
futures::stream::once(async move { first_app_chunk })
.chain(stream),
)
.map(|html| Ok(web::Bytes::from(html)) as Result<web::Bytes>),
);
// Get the first and second in the stream, which renders the app shell, and thus allows Resources to run
let first_chunk = stream.next().await;
let second_chunk = stream.next().await;
let res_options = res_options.0.read();
let (status, headers) = (res_options.status, res_options.headers.clone());
let status = status.unwrap_or_default();
let complete_stream =
futures::stream::iter([first_chunk.unwrap(), second_chunk.unwrap()])
.chain(stream)
.chain(
futures::stream::once(async move {
runtime.dispose();
tail.to_string()
})
.map(|html| Ok(web::Bytes::from(html)) as Result<web::Bytes>),
);
let mut res = HttpResponse::Ok()
.content_type("text/html")
.streaming(complete_stream);
// Add headers manipulated in the response
for (key, value) in headers.into_iter() {
res.headers_mut().append(key, value);
}
// Set status to what is returned in the function
let res_status = res.status_mut();
*res_status = status;
// Return the response
res
}
#[tracing::instrument(level = "trace", fields(error), skip_all)]
async fn render_app_async_helper(
options: &LeptosOptions,
app: impl FnOnce() -> View + 'static,
res_options: ResponseOptions,
additional_context: impl Fn() + 'static + Clone + Send,
) -> HttpResponse<BoxBody> {
let (stream, runtime) =
leptos::ssr::render_to_stream_in_order_with_prefix_undisposed_with_context(
app,
move || "".into(),
additional_context,
);
let html = build_async_response(stream, options, runtime).await;
let res_options = res_options.0.read();
let (status, headers) = (res_options.status, res_options.headers.clone());
let status = status.unwrap_or_default();
let mut res = HttpResponse::Ok().content_type("text/html").body(html);
// Add headers manipulated in the response
for (key, value) in headers.into_iter() {
res.headers_mut().append(key, value);
}
// Set status to what is returned in the function
let res_status = res.status_mut();
*res_status = status;
// Return the response
res
}
/// Generates a list of all routes defined in Leptos's Router in your app. We can then use this to automatically
/// create routes in Actix's App without having to use wildcard matching or fallbacks. Takes in your root app Element
/// as an argument so it can walk you app tree. This version is tailored to generated Actix compatible paths.
pub fn generate_route_list<IV>(
app_fn: impl Fn() -> IV + 'static + Clone,
) -> Vec<RouteListing>
where
IV: IntoView + 'static,
{
generate_route_list_with_exclusions_and_ssg(app_fn, None).0
}
/// Generates a list of all routes defined in Leptos's Router in your app. We can then use this to automatically
/// create routes in Actix's App without having to use wildcard matching or fallbacks. Takes in your root app Element
/// as an argument so it can walk you app tree. This version is tailored to generated Actix compatible paths.
pub fn generate_route_list_with_ssg<IV>(
app_fn: impl Fn() -> IV + 'static + Clone,
) -> (Vec<RouteListing>, StaticDataMap)
where
IV: IntoView + 'static,
{
generate_route_list_with_exclusions_and_ssg(app_fn, None)
}
/// Generates a list of all routes defined in Leptos's Router in your app. We can then use this to automatically
/// create routes in Actix's App without having to use wildcard matching or fallbacks. Takes in your root app Element
/// as an argument so it can walk you app tree. This version is tailored to generated Actix compatible paths. Adding excluded_routes
/// to this function will stop `.leptos_routes()` from generating a route for it, allowing a custom handler. These need to be in Actix path format
pub fn generate_route_list_with_exclusions<IV>(
app_fn: impl Fn() -> IV + 'static + Clone,
excluded_routes: Option<Vec<String>>,
) -> Vec<RouteListing>
where
IV: IntoView + 'static,
{
generate_route_list_with_exclusions_and_ssg(app_fn, excluded_routes).0
}
/// Generates a list of all routes defined in Leptos's Router in your app. We can then use this to automatically
/// create routes in Actix's App without having to use wildcard matching or fallbacks. Takes in your root app Element
/// as an argument so it can walk you app tree. This version is tailored to generated Actix compatible paths. Adding excluded_routes
/// to this function will stop `.leptos_routes()` from generating a route for it, allowing a custom handler. These need to be in Actix path format
pub fn generate_route_list_with_exclusions_and_ssg<IV>(
app_fn: impl Fn() -> IV + 'static + Clone,
excluded_routes: Option<Vec<String>>,
) -> (Vec<RouteListing>, StaticDataMap)
where
IV: IntoView + 'static,
{
generate_route_list_with_exclusions_and_ssg_and_context(
app_fn,
excluded_routes,
|| {},
)
}
/// Generates a list of all routes defined in Leptos's Router in your app. We can then use this to automatically
/// create routes in Actix's App without having to use wildcard matching or fallbacks. Takes in your root app Element
/// as an argument so it can walk you app tree. This version is tailored to generated Actix compatible paths. Adding excluded_routes
/// to this function will stop `.leptos_routes()` from generating a route for it, allowing a custom handler. These need to be in Actix path format.
/// Additional context will be provided to the app Element.
pub fn generate_route_list_with_exclusions_and_ssg_and_context<IV>(
app_fn: impl Fn() -> IV + 'static + Clone,
excluded_routes: Option<Vec<String>>,
additional_context: impl Fn() + 'static + Clone,
) -> (Vec<RouteListing>, StaticDataMap)
where
IV: IntoView + 'static,
{
let (mut routes, static_data_map) =
leptos_router::generate_route_list_inner_with_context(
app_fn,
additional_context,
);
// Actix's Router doesn't follow Leptos's
// Match `*` or `*someword` to replace with replace it with "/{tail.*}
let wildcard_re = Regex::new(r"\*.*").unwrap();
// Match `:some_word` but only capture `some_word` in the groups to replace with `{some_word}`
let capture_re = Regex::new(r":((?:[^.,/]+)+)[^/]?").unwrap();
// Empty strings screw with Actix pathing, they need to be "/"
routes = routes
.into_iter()
.map(|listing| {
let path = listing.path();
if path.is_empty() {
return RouteListing::new(
"/".to_string(),
listing.path(),
listing.mode(),
listing.methods(),
listing.static_mode(),
);
}
RouteListing::new(
listing.path(),
listing.path(),
listing.mode(),
listing.methods(),
listing.static_mode(),
)
})
.map(|listing| {
let path = wildcard_re
.replace_all(listing.path(), "{tail:.*}")
.to_string();
let path = capture_re.replace_all(&path, "{$1}").to_string();
RouteListing::new(
path,
listing.path(),
listing.mode(),
listing.methods(),
listing.static_mode(),
)
})
.collect::<Vec<_>>();
(
if routes.is_empty() {
vec![RouteListing::new(