Implement fetchLatestImages()

1 files changed, 60 insertions, 0 deletions

diff --git a/server.js b/server.js
index b026bb9..7fd73f0 100644
--- a/server.js
+++ b/server.js
@@ -1,14 +1,74 @@
 const express = require('express')
 const app = express()
 
+const redis = require('redis')
+const client = redis.createClient(process.env.REDIS_URL)
+
+const request = require('request')
+const aws = require('aws-sdk')
+const s3 = new aws.S3()
+
+function fetchImages() {
+  request('http://map.govmap.gov.il/rainradar/radar.json', (error, response, body) => {
+    var res = JSON.parse(body)
+    for (let size of ['images140', 'images280']) {
+      var imgs = res[size]
+      Object.keys(imgs).forEach(function (img) {
+        const ts = img.split(':')
+        const url = 'http://' + imgs[img]
+        const key = `fetched:${url}`
+        client.get(key, (err, reply) => {
+          if (!reply && reply != 'fetching') {
+            client.set(key, 'fetching')
+            request({ url: url, encoding: null }, (error, response, body) => {
+              if (err) {
+                console.log(err)
+                client.del(key)
+              }
+              else {
+                const d = ts.slice(0, 3).join('')
+                const t = ts.slice(3, 5).join('')
+                console.log(`Uploading ${url} to bucket`)
+                s3.putObject({
+                  Bucket: 'imgs.geshem.space',
+                  Key: `${d}_${t}.png`,
+                  ContentType: response.headers['content-type'],
+                  ContentLength: response.headers['content-length'],
+                  Body: body
+                }, (err, data) => {
+                  if (err) {
+                    console.log(err)
+                    client.del(key)
+                  }
+                  else {
+                    client.set(key, data.ETag.slice(1, -1))
+                  }
+                })
+              }
+            })
+          }
+        })
+      })
+    }
+  })
+}
+
 app.set('view engine', 'pug')
 
 app.use('/static', express.static('static'))
 
+app.use('/', function(req, res, next){
+  res.on('finish', function(){
+    console.log('hello world!')
+  })
+  next()
+});
+
 app.get('/', function (req, res) {
   res.render('index', { prod: process.env.NODE_ENV === 'production' })
 })
 
 app.listen(3000, function () {
   console.log('Example app listening on port 3000!')
+  fetchImages()
 })