61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
'use strict'
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var express = require('express');
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var app = express();
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var mcache = require('memory-cache');
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const request = require('superagent');
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var cors = require('cors')
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app.use(cors())
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var cache = (duration) => {
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return (req, res, next) => {
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let key = '__express__' + req.originalUrl || req.url
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let cachedBody = mcache.get(key)
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if (cachedBody) {
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res.send(JSON.parse(cachedBody))
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return
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} else {
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res.sendResponse = res.send
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res.send = (body) => {
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mcache.put(key, body, duration * 1000);
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res.sendResponse(body)
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}
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next()
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}
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}
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}
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app.get('/get',cache(10), cors(), (req, res) => {
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setTimeout(() => {
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const url = (req.query)?req.query.url:null;
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if (!url){
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res.status(404).send('Not Found'); //not found
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}else{
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request.get(url, function (err, response) {
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// res.header("Access-Control-Allow-Origin", "http://localhost:3000");
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res.header("Access-Control-Allow-Headers", "Origin, Content-Type, Content-Length");
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res.header("Access-Control-Allow-Methods", "GET, OPTIONS");
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res.header("Access-Control-Allow-Methods", "GET, OPTIONS");
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res.header("Content-Type","application/json");
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if (err) throw err;
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res.send(response.body);
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})
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}
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})
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});
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app.use((req, res) => {
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res.status(404).send('Not Found') //not found
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})
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app.listen(process.env.PORT, function () {
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console.log(`Example app listening on port ${process.env.PORT}!`)
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})
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