Trait LayoutService

Source

pub trait LayoutService:
    Send
    + Sync
    + 'static {
Show 15 methods    // Required methods
    fn get_layouts<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, GetLayoutsRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<GetLayoutsResponse> + Send + use<'a, Self>>> + Send;
    fn get_layout<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, GetLayoutRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<GetLayoutResponse> + Send + use<'a, Self>>> + Send;
    fn upsert_layout<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, UpsertLayoutRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<UpsertLayoutResponse> + Send + use<'a, Self>>> + Send;
    fn delete_layout<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, DeleteLayoutRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<DeleteLayoutResponse> + Send + use<'a, Self>>> + Send;
    fn resolve_layout_share_token<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, ResolveLayoutShareTokenRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<ResolveLayoutShareTokenResponse> + Send + use<'a, Self>>> + Send;
    fn create_layout_share_link<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, CreateLayoutShareLinkRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<CreateLayoutShareLinkResponse> + Send + use<'a, Self>>> + Send;
    fn revoke_layout_share_link<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, RevokeLayoutShareLinkRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<RevokeLayoutShareLinkResponse> + Send + use<'a, Self>>> + Send;
    fn list_owner_published_layouts<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, ListOwnerPublishedLayoutsRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<ListOwnerPublishedLayoutsResponse> + Send + use<'a, Self>>> + Send;
    fn publish_layout<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, PublishLayoutRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<PublishLayoutResponse> + Send + use<'a, Self>>> + Send;
    fn unpublish_layout<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, UnpublishLayoutRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<UnpublishLayoutResponse> + Send + use<'a, Self>>> + Send;
    fn list_layout_template_versions<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, ListLayoutTemplateVersionsRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<ListLayoutTemplateVersionsResponse> + Send + use<'a, Self>>> + Send;
    fn get_layout_template_version<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, GetLayoutTemplateVersionRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<GetLayoutTemplateVersionResponse> + Send + use<'a, Self>>> + Send;
    fn set_layout_template_subscription<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, SetLayoutTemplateSubscriptionRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<SetLayoutTemplateSubscriptionResponse> + Send + use<'a, Self>>> + Send;
    fn delete_layout_template_subscription<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, DeleteLayoutTemplateSubscriptionRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<DeleteLayoutTemplateSubscriptionResponse> + Send + use<'a, Self>>> + Send;
    fn list_my_layout_template_subscriptions<'a>(
        &'a self,
        ctx: RequestContext,
        request: ServiceRequest<'_, ListMyLayoutTemplateSubscriptionsRequest>,
    ) -> impl Future<Output = ServiceResult<impl Encodable<ListMyLayoutTemplateSubscriptionsResponse> + Send + use<'a, Self>>> + Send;
}

Expand description

LayoutService persists saved layouts and manages public layout sharing.

§Implementing handlers

Implement methods with plain async fn; the returned future satisfies the Send bound automatically.

Unary and server-streaming requests arrive as ServiceRequest<'_, Req>: a zero-copy view of the request plus its body, valid for the duration of the call. Fields are read directly (request.name is a &str into the decoded buffer) and the borrow may be held across .await points. Anything that must outlive the call — tokio::spawn, channels, server state, or data captured by a returned response stream — takes owned data: call request.to_owned_message() (or copy the specific fields) first.

Client-streaming and bidi requests arrive as InboundStream<Req> — a ServiceStream of StreamMessages. Each item owns its decoded buffer and is Send + 'static, so items can be buffered or moved into spawned tasks; read fields zero-copy through the generated accessor methods (item.name()) or .view(), convert with .to_owned_message(), or yield an item back unchanged — StreamMessage<M> implements Encodable<M>.

Request types resolved through extern_path (e.g. well-known types from another crate) use the same wrappers; the crate that owns the type must be generated with buffa ≥ 0.8.0 and views enabled so the backing HasMessageView impl exists.

The impl Encodable<Out> return bound accepts the owned Out, the generated OutView<'_> / OwnedOutView, MaybeBorrowed, or PreEncoded for handlers that encode a non-'static view internally and pass the bytes across the handler boundary. View bodies are not emitted for output types mapped via extern_path (the impl would be an orphan); return owned for WKT/extern outputs.

Server-streaming and bidi-streaming methods return ServiceStream<impl Encodable<Out> + Send + use<Self>>. The use<Self> precise-capturing clause excludes &self’s lifetime and the request’s lifetime (unary methods use use<'a, Self> and may borrow from &self), so stream items must be 'static and cannot borrow from the request. To stream view-encoded data, encode each item inside the stream body and yield PreEncoded — see its # Streaming example doc.

Required Methods§

Source