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TypeScript

import type { $ZodType } from 'zod/v4/core';
import type { ActionAccept, ActionClient } from '../actions/runtime/types.js';
import type { ComponentInstance } from '../types/astro.js';
import type { MiddlewareHandler, RewritePayload } from '../types/public/common.js';
import type { RuntimeMode } from '../types/public/config.js';
import type { RouteData, SSRActions, SSRLoadedRenderer, SSRManifest, SSRResult } from '../types/public/internal.js';
import type { ServerIslandMappings } from './app/types.js';
import type { SinglePageBuiltModule } from './build/types.js';
import type { AstroLogger } from './logger/core.js';
import { RouteCache } from './render/route-cache.js';
import { type DefaultRouteParams } from './routing/default.js';
import type { CacheProvider, CacheProviderFactory } from './cache/types.js';
import type { CompiledCacheRoute } from './cache/runtime/route-matching.js';
import type { SessionDriverFactory } from './session/types.js';
import { NodePool } from '../runtime/server/render/queue/pool.js';
import { HTMLStringCache } from '../runtime/server/html-string-cache.js';
/**
* The `Pipeline` represents the static parts of rendering that do not change between requests.
* These are mostly known when the server first starts up and do not change.
*
* Thus, a `Pipeline` is created once at process start and then used by every `RenderContext`.
*/
export declare abstract class Pipeline {
readonly internalMiddleware: MiddlewareHandler[];
resolvedMiddleware: MiddlewareHandler | undefined;
resolvedLogger: boolean;
resolvedActions: SSRActions | undefined;
resolvedSessionDriver: SessionDriverFactory | null | undefined;
resolvedCacheProvider: CacheProvider | null | undefined;
compiledCacheRoutes: CompiledCacheRoute[] | undefined;
nodePool: NodePool | undefined;
htmlStringCache: HTMLStringCache | undefined;
logger: AstroLogger;
readonly manifest: SSRManifest;
/**
* "development" or "production" only
*/
readonly runtimeMode: RuntimeMode;
readonly renderers: SSRLoadedRenderer[];
readonly resolve: (s: string) => Promise<string>;
readonly streaming: boolean;
/**
* Used to provide better error messages for `Astro.clientAddress`
*/
readonly adapterName: SSRManifest['adapterName'];
readonly clientDirectives: SSRManifest['clientDirectives'];
readonly inlinedScripts: SSRManifest['inlinedScripts'];
readonly compressHTML: SSRManifest['compressHTML'];
readonly i18n: SSRManifest['i18n'];
readonly middleware: SSRManifest['middleware'];
readonly routeCache: RouteCache;
/**
* Used for `Astro.site`.
*/
readonly site: URL | undefined;
/**
* Array of built-in, internal, routes.
* Used to find the route module
*/
readonly defaultRoutes: Array<DefaultRouteParams>;
readonly actions: SSRManifest['actions'];
readonly sessionDriver: SSRManifest['sessionDriver'];
readonly cacheProvider: SSRManifest['cacheProvider'];
readonly cacheConfig: SSRManifest['cacheConfig'];
readonly serverIslands: SSRManifest['serverIslandMappings'];
constructor(logger: AstroLogger, manifest: SSRManifest,
/**
* "development" or "production" only
*/
runtimeMode: RuntimeMode, renderers: SSRLoadedRenderer[], resolve: (s: string) => Promise<string>, streaming: boolean,
/**
* Used to provide better error messages for `Astro.clientAddress`
*/
adapterName?: string, clientDirectives?: Map<string, string>, inlinedScripts?: Map<string, string>, compressHTML?: boolean | "jsx", i18n?: import("./app/types.js").SSRManifestI18n | undefined, middleware?: (() => Promise<import("../types/public/common.js").AstroMiddlewareInstance> | import("../types/public/common.js").AstroMiddlewareInstance) | undefined, routeCache?: RouteCache,
/**
* Used for `Astro.site`.
*/
site?: URL | undefined,
/**
* Array of built-in, internal, routes.
* Used to find the route module
*/
defaultRoutes?: DefaultRouteParams[], actions?: (() => Promise<SSRActions> | SSRActions) | undefined, sessionDriver?: (() => Promise<{
default: SessionDriverFactory | null;
}>) | undefined, cacheProvider?: (() => Promise<{
default: CacheProviderFactory | null;
}>) | undefined, cacheConfig?: import("./cache/types.js").SSRManifestCache | undefined, serverIslands?: (() => Promise<ServerIslandMappings> | ServerIslandMappings) | undefined);
abstract headElements(routeData: RouteData): Promise<HeadElements> | HeadElements;
abstract componentMetadata(routeData: RouteData): Promise<SSRResult['componentMetadata']> | void;
/**
* It attempts to retrieve the `RouteData` that matches the input `url`, and the component that belongs to the `RouteData`.
*
* ## Errors
*
* - if not `RouteData` is found
*
* @param {RewritePayload} rewritePayload The payload provided by the user
* @param {Request} request The original request
*/
abstract tryRewrite(rewritePayload: RewritePayload, request: Request): Promise<TryRewriteResult>;
/**
* Tells the pipeline how to retrieve a component give a `RouteData`
* @param routeData
*/
abstract getComponentByRoute(routeData: RouteData): Promise<ComponentInstance>;
/**
* The current name of the pipeline. Useful for debugging
*/
abstract getName(): string;
/**
* Resolves the middleware from the manifest, and returns the `onRequest` function. If `onRequest` isn't there,
* it returns a no-op function
*/
getMiddleware(): Promise<MiddlewareHandler>;
/**
* Clears the cached middleware so it is re-resolved on the next request.
* Called via HMR when middleware files change during development.
*/
clearMiddleware(): void;
/**
* Resolves the logger destination from the manifest and updates the pipeline logger.
* If the user configured `experimental.logger`, the bundled logger factory is loaded
* and replaces the default console destination. This is lazy and only resolves once.
*/
getLogger(): Promise<AstroLogger>;
getActions(): Promise<SSRActions>;
getSessionDriver(): Promise<SessionDriverFactory | null>;
getCacheProvider(): Promise<CacheProvider | null>;
getServerIslands(): Promise<ServerIslandMappings>;
getAction(path: string): Promise<ActionClient<unknown, ActionAccept, $ZodType>>;
getModuleForRoute(route: RouteData): Promise<SinglePageBuiltModule>;
createNodePool(poolSize: number, stats: boolean): NodePool;
createStringCache(): HTMLStringCache;
}
export interface HeadElements extends Pick<SSRResult, 'scripts' | 'styles' | 'links'> {
}
export interface TryRewriteResult {
routeData: RouteData;
componentInstance: ComponentInstance;
newUrl: URL;
pathname: string;
}