2023-08-13 20:38:33 +03:00
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import { IConfigService } from "./config/config.interface";
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import { ConfigService } from "./config/config.service";
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import express from "express";
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import NodeCache from "node-cache";
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2023-08-13 21:39:23 +03:00
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import { readability } from "./handlers/readability";
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import minify from "./handlers/main";
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2023-08-13 20:38:33 +03:00
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class App {
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config: IConfigService;
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cache: NodeCache;
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constructor() {
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this.config = new ConfigService();
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this.cache = new NodeCache({ stdTTL: 100, checkperiod: 120 });
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}
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init() {
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const app = express();
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app.use((req, res, next) => {
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const url = req.originalUrl || req.url;
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const purge = req.query.purge ? true : false;
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if (purge) {
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this.cache.del(url);
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next();
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}
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const cached = this.cache.get(url);
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if (cached) {
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res.send(cached);
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} else {
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next();
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}
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});
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app.get("/get", (req, res) => {
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const url = (req.query.url || "/nothing") as string;
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const type = (req.query.type || "html") as string;
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2023-08-13 21:39:23 +03:00
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minify(url)
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.then((parsed) => {
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2023-08-13 20:38:33 +03:00
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const content =
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type === "html" ? parsed?.content : parsed?.textContent;
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this.cache.set(req.originalUrl || req.url, content);
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res.send(content);
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})
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.catch((err) => {
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2023-08-13 21:39:23 +03:00
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res.status(500).send({ error: err.message });
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2023-08-13 20:38:33 +03:00
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});
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});
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2023-08-13 21:39:23 +03:00
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app.get("/readability", async (req, res) => {
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const url = (req.query.url || "/nothing") as string;
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const parsed = await readability(url);
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this.cache.set(req.originalUrl || req.url, parsed);
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res.send(parsed);
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});
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2023-08-13 20:38:33 +03:00
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app.listen(this.config.get("PORT"), () => {
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console.log(`Listening on port ${this.config.get("PORT")}`);
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});
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}
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}
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const app = new App();
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app.init();
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