d147843c76
- Introduced blog routing using Next.js App Router - Implemented dynamic [slug] pages for blog posts - Added MDX-based content loading via lib/posts - Integrated shared TopBar layout with navigation - Established clear content, lib and component separation
211 lines
10 KiB
JavaScript
211 lines
10 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "default", {
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enumerable: true,
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get: function() {
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return ResponseCache;
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}
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});
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0 && __export(require("./types"));
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const _batcher = require("../../lib/batcher");
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const _scheduler = require("../../lib/scheduler");
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const _utils = require("./utils");
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_export_star(require("./types"), exports);
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function _export_star(from, to) {
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Object.keys(from).forEach(function(k) {
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if (k !== "default" && !Object.prototype.hasOwnProperty.call(to, k)) {
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Object.defineProperty(to, k, {
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enumerable: true,
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get: function() {
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return from[k];
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}
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});
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}
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});
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return from;
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}
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class ResponseCache {
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constructor(minimal_mode){
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this.getBatcher = _batcher.Batcher.create({
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// Ensure on-demand revalidate doesn't block normal requests, it should be
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// safe to run an on-demand revalidate for the same key as a normal request.
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cacheKeyFn: ({ key, isOnDemandRevalidate })=>`${key}-${isOnDemandRevalidate ? '1' : '0'}`,
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// We wait to do any async work until after we've added our promise to
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// `pendingResponses` to ensure that any any other calls will reuse the
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// same promise until we've fully finished our work.
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schedulerFn: _scheduler.scheduleOnNextTick
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});
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this.revalidateBatcher = _batcher.Batcher.create({
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// We wait to do any async work until after we've added our promise to
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// `pendingResponses` to ensure that any any other calls will reuse the
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// same promise until we've fully finished our work.
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schedulerFn: _scheduler.scheduleOnNextTick
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});
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this.minimal_mode = minimal_mode;
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}
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/**
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* Gets the response cache entry for the given key.
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*
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* @param key - The key to get the response cache entry for.
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* @param responseGenerator - The response generator to use to generate the response cache entry.
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* @param context - The context for the get request.
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* @returns The response cache entry.
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*/ async get(key, responseGenerator, context) {
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var _this_previousCacheItem;
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// If there is no key for the cache, we can't possibly look this up in the
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// cache so just return the result of the response generator.
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if (!key) {
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return responseGenerator({
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hasResolved: false,
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previousCacheEntry: null
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});
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}
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// Check minimal mode cache before doing any other work
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if (this.minimal_mode && ((_this_previousCacheItem = this.previousCacheItem) == null ? void 0 : _this_previousCacheItem.key) === key && this.previousCacheItem.expiresAt > Date.now()) {
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return (0, _utils.toResponseCacheEntry)(this.previousCacheItem.entry);
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}
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const { incrementalCache, isOnDemandRevalidate = false, isFallback = false, isRoutePPREnabled = false, isPrefetch = false, waitUntil, routeKind } = context;
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const response = await this.getBatcher.batch({
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key,
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isOnDemandRevalidate
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}, ({ resolve })=>{
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const promise = this.handleGet(key, responseGenerator, {
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incrementalCache,
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isOnDemandRevalidate,
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isFallback,
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isRoutePPREnabled,
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isPrefetch,
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routeKind
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}, resolve);
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// We need to ensure background revalidates are passed to waitUntil.
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if (waitUntil) waitUntil(promise);
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return promise;
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});
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return (0, _utils.toResponseCacheEntry)(response);
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}
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/**
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* Handles the get request for the response cache.
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*
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* @param key - The key to get the response cache entry for.
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* @param responseGenerator - The response generator to use to generate the response cache entry.
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* @param context - The context for the get request.
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* @param resolve - The resolve function to use to resolve the response cache entry.
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* @returns The response cache entry.
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*/ async handleGet(key, responseGenerator, context, resolve) {
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let previousIncrementalCacheEntry = null;
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let resolved = false;
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try {
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// Get the previous cache entry if not in minimal mode
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previousIncrementalCacheEntry = !this.minimal_mode ? await context.incrementalCache.get(key, {
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kind: (0, _utils.routeKindToIncrementalCacheKind)(context.routeKind),
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isRoutePPREnabled: context.isRoutePPREnabled,
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isFallback: context.isFallback
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}) : null;
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if (previousIncrementalCacheEntry && !context.isOnDemandRevalidate) {
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resolve(previousIncrementalCacheEntry);
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resolved = true;
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if (!previousIncrementalCacheEntry.isStale || context.isPrefetch) {
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// The cached value is still valid, so we don't need to update it yet.
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return previousIncrementalCacheEntry;
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}
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}
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// Revalidate the cache entry
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const incrementalResponseCacheEntry = await this.revalidate(key, context.incrementalCache, context.isRoutePPREnabled, context.isFallback, responseGenerator, previousIncrementalCacheEntry, previousIncrementalCacheEntry !== null && !context.isOnDemandRevalidate);
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// Handle null response
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if (!incrementalResponseCacheEntry) {
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// Unset the previous cache item if it was set so we don't use it again.
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if (this.minimal_mode) this.previousCacheItem = undefined;
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return null;
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}
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// Resolve for on-demand revalidation or if not already resolved
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if (context.isOnDemandRevalidate && !resolved) {
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return incrementalResponseCacheEntry;
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}
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return incrementalResponseCacheEntry;
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} catch (err) {
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// If we've already resolved the cache entry, we can't reject as we
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// already resolved the cache entry so log the error here.
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if (resolved) {
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console.error(err);
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return null;
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}
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throw err;
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}
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}
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/**
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* Revalidates the cache entry for the given key.
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*
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* @param key - The key to revalidate the cache entry for.
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* @param incrementalCache - The incremental cache to use to revalidate the cache entry.
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* @param isRoutePPREnabled - Whether the route is PPR enabled.
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* @param isFallback - Whether the route is a fallback.
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* @param responseGenerator - The response generator to use to generate the response cache entry.
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* @param previousIncrementalCacheEntry - The previous cache entry to use to revalidate the cache entry.
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* @param hasResolved - Whether the response has been resolved.
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* @returns The revalidated cache entry.
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*/ async revalidate(key, incrementalCache, isRoutePPREnabled, isFallback, responseGenerator, previousIncrementalCacheEntry, hasResolved, waitUntil) {
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return this.revalidateBatcher.batch(key, ()=>{
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const promise = this.handleRevalidate(key, incrementalCache, isRoutePPREnabled, isFallback, responseGenerator, previousIncrementalCacheEntry, hasResolved);
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// We need to ensure background revalidates are passed to waitUntil.
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if (waitUntil) waitUntil(promise);
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return promise;
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});
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}
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async handleRevalidate(key, incrementalCache, isRoutePPREnabled, isFallback, responseGenerator, previousIncrementalCacheEntry, hasResolved) {
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try {
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// Generate the response cache entry using the response generator.
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const responseCacheEntry = await responseGenerator({
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hasResolved,
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previousCacheEntry: previousIncrementalCacheEntry,
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isRevalidating: true
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});
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if (!responseCacheEntry) {
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return null;
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}
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// Convert the response cache entry to an incremental response cache entry.
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const incrementalResponseCacheEntry = await (0, _utils.fromResponseCacheEntry)({
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...responseCacheEntry,
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isMiss: !previousIncrementalCacheEntry
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});
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// We want to persist the result only if it has a cache control value
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// defined.
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if (incrementalResponseCacheEntry.cacheControl) {
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if (this.minimal_mode) {
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this.previousCacheItem = {
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key,
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entry: incrementalResponseCacheEntry,
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expiresAt: Date.now() + 1000
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};
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} else {
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await incrementalCache.set(key, incrementalResponseCacheEntry.value, {
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cacheControl: incrementalResponseCacheEntry.cacheControl,
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isRoutePPREnabled,
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isFallback
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});
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}
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}
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return incrementalResponseCacheEntry;
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} catch (err) {
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// When a path is erroring we automatically re-set the existing cache
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// with new revalidate and expire times to prevent non-stop retrying.
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if (previousIncrementalCacheEntry == null ? void 0 : previousIncrementalCacheEntry.cacheControl) {
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const revalidate = Math.min(Math.max(previousIncrementalCacheEntry.cacheControl.revalidate || 3, 3), 30);
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const expire = previousIncrementalCacheEntry.cacheControl.expire === undefined ? undefined : Math.max(revalidate + 3, previousIncrementalCacheEntry.cacheControl.expire);
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await incrementalCache.set(key, previousIncrementalCacheEntry.value, {
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cacheControl: {
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revalidate: revalidate,
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expire: expire
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},
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isRoutePPREnabled,
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isFallback
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});
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}
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// We haven't resolved yet, so let's throw to indicate an error.
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throw err;
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}
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}
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}
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//# sourceMappingURL=index.js.map
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