134 lines
5.1 KiB
JavaScript
134 lines
5.1 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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exports.default = void 0;
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var _lruCache = _interopRequireDefault(require("next/dist/compiled/lru-cache"));
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var _appRouterHeaders = require("../../../client/components/app-router-headers");
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class FetchCache {
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constructor(ctx){
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if (ctx.maxMemoryCacheSize && !memoryCache) {
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memoryCache = new _lruCache.default({
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max: ctx.maxMemoryCacheSize,
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length ({ value }) {
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var ref;
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if (!value) {
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return 25;
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} else if (value.kind === "REDIRECT") {
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return JSON.stringify(value.props).length;
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} else if (value.kind === "IMAGE") {
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throw new Error("invariant image should not be incremental-cache");
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} else if (value.kind === "FETCH") {
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return JSON.stringify(value.data || "").length;
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}
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// rough estimate of size of cache value
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return value.html.length + (((ref = JSON.stringify(value.pageData)) == null ? void 0 : ref.length) || 0);
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}
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});
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}
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this.debug = !!process.env.NEXT_PRIVATE_DEBUG_CACHE;
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this.headers = {};
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this.headers["Content-Type"] = "application/json";
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if (_appRouterHeaders.FETCH_CACHE_HEADER in ctx._requestHeaders) {
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const newHeaders = JSON.parse(ctx._requestHeaders[_appRouterHeaders.FETCH_CACHE_HEADER]);
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for(const k in newHeaders){
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this.headers[k] = newHeaders[k];
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}
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}
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this.cacheEndpoint = `https://${ctx._requestHeaders["x-vercel-sc-host"]}${ctx._requestHeaders["x-vercel-sc-basepath"] || ""}`;
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if (this.debug) {
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console.log("using cache endpoint", this.cacheEndpoint);
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}
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}
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async get(key, fetchCache) {
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if (!fetchCache) return null;
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let data = memoryCache == null ? void 0 : memoryCache.get(key);
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// get data from fetch cache
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if (!data) {
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try {
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const start = Date.now();
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const res = await fetch(`${this.cacheEndpoint}/v1/suspense-cache/getItems`, {
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method: "POST",
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body: JSON.stringify([
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key
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]),
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headers: this.headers
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});
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if (!res.ok) {
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console.error(await res.text());
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throw new Error(`invalid response from cache ${res.status}`);
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}
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const items = await res.json();
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const item = items[key];
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if (!item || !item.value) {
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console.log({
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item
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});
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throw new Error(`invalid item returned`);
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}
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const cached = JSON.parse(item.value);
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if (!cached || cached.kind !== "FETCH") {
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this.debug && console.log({
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cached
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});
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throw new Error(`invalid cache value`);
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}
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data = {
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lastModified: Date.now() - item.age * 1000,
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value: cached
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};
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if (this.debug) {
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console.log("got fetch cache entry duration:", Date.now() - start, data);
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}
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if (data) {
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memoryCache == null ? void 0 : memoryCache.set(key, data);
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}
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} catch (err) {
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// unable to get data from fetch-cache
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console.error(`Failed to get from fetch-cache`, err);
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}
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}
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return data || null;
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}
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async set(key, data, fetchCache) {
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if (!fetchCache) return;
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memoryCache == null ? void 0 : memoryCache.set(key, {
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value: data,
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lastModified: Date.now()
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});
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try {
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const start = Date.now();
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const body = JSON.stringify([
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{
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id: key,
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value: JSON.stringify(data)
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},
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]);
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const res = await fetch(`${this.cacheEndpoint}/v1/suspense-cache/setItems`, {
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method: "POST",
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headers: this.headers,
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body: body
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});
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if (!res.ok) {
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this.debug && console.log(await res.text());
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throw new Error(`invalid response ${res.status}`);
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}
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if (this.debug) {
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console.log("successfully set to fetch-cache duration:", Date.now() - start, body);
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}
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} catch (err) {
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// unable to set to fetch-cache
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console.error(`Failed to update fetch cache`, err);
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}
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return;
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}
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}
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exports.default = FetchCache;
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {
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default: obj
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};
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}
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let memoryCache;
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//# sourceMappingURL=fetch-cache.js.map
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