Added optical character recognition.

server.js

@@ -15,6 +15,8 @@ var https = require('https');
 var MongoClient = require('mongodb').MongoClient;
 var sanitize = require('mongo-sanitize');
 var cheerio = require("cheerio"); //jQuery Substitute
+var puppeteer = require("puppeteer");
+const { createWorker } = require("tesseract.js");
  
  
 const pug = require('pug');
@@ -26,11 +28,109 @@ app.set('view engine', "pug")
 app.use("/images", express.static(path.join(__dirname, '/images')));
 app.use("/static", express.static(path.join(__dirname, "/static")));
 
+const baseFilePath = "./savedImages";
 
 app.get('/', function (req, res) {
        res.send('Hello World');
 });
 
+app.get("/takeScreenshot", async function(req, res){
+    let url = req.query["url"];
+    let name = req.query["name"];
+
+    puppeteer.launch({
+        headless: "new",
+        defaultViewport: {
+          width: 1280,
+          height: 2000,
+        },
+      })
+      .then(async (browser) => {
+        const page = await browser.newPage();
+        await page.goto(url);
+        await page.screenshot({ path: `${baseFilePath}/${name}.png` });
+        await browser.close();
+      });
+      res.send("204 no content");
+      res.end();
+});
+
+app.get("/getValueFromImage", async function(req, res){
+    console.log("Pulling info from image");
+    let name = req.query["name"]; 
+    let top = req.query["top"]; //374
+    let left = req.query["left"]; //596
+    let width = req.query["width"];//75
+    let height = req.query["height"];//30
+
+    const img = fs.readFileSync(`${baseFilePath}/${name}.png`);
+
+    const worker = await createWorker("eng");
+    const rectangle = { left: left, top: top, width: width, height: height };
+    let myText = "Default";
+    (async () => {
+      const {
+        data: { text },
+      } = await worker.recognize(img,
+        { rectangle }
+      );
+      res.send(text);
+      res.end();
+      console.log(text);
+      await worker.terminate();
+    })();
+    
+    
+});
+
+app.get("/getVisualPrice", async function(req, res){
+    console.log("Getting Visual Price");
+    let url = req.query["url"];
+    let name = req.query["name"]; 
+    let top = req.query["top"]; //374
+    let left = req.query["left"]; //596
+    let width = req.query["width"];//75
+    let height = req.query["height"];//30
+
+    puppeteer.launch({
+        headless: "new",
+        defaultViewport: {
+          width: 1280,
+          height: 2000,
+        },
+      })
+      .then(async (browser) => {
+        const page = await browser.newPage();
+        await page.goto(url);
+        await page.screenshot({ path: `${baseFilePath}/${name}.png` });
+        await browser.close();
+
+        console.log("Reading Image");
+        const img = fs.readFileSync(`${baseFilePath}/${name}.png`);
+
+        const worker = await createWorker("eng");
+        const rectangle = {
+          left: left,
+          top: top,
+          width: width,
+          height: height,
+        };
+        let myText = "Default";
+        (async () => {
+          console.log("Finding text");
+          const {
+            data: { text },
+          } = await worker.recognize(img, { rectangle });
+          res.send(text);
+          res.end();
+          console.log(text);
+          await worker.terminate();
+        })();
+
+      });
+
+});
+
 app.get("/getPrice", async function(req, res){
     try{
         console.log(`Getting Price!`);
@@ -39,24 +139,39 @@ app.get("/getPrice", async function(req, res){
         let prefix = req.query["prefix"];
         let instanceCount = parseInt(req.query["instanceCount"]);
         let idName = req.query["idName"];
-        let finalAnswer = "";
+
 
         console.log(`Get Price Info:\n
             Prefix: ${prefix}\n
             InstanceCount: ${instanceCount}\n
             idName: ${idName}\n
             URL: ${url}\n
-            `);
+        `);
 
         request(url, (err, resp, html) => {
             const $ = cheerio.load(html);
-            finalAnswer = "";
-            $(idName).each((i, el) => {
-                if(i == instanceCount){
-                    const item = $(el).text();
-                    finalAnswer = item.split(prefix).reverse()[0];
-                }
-            });
+            console.log(html);
+            let finalAnswer = "";
+            if(instanceCount == 0){
+                console.log("Getting single instance");
+                let item = {};
+                console.log($(idName));
+                
+                $(idName).each((i, el) => {
+                    //console.log("item");
+                    //console.log(el);
+                   item = $(el).text(); 
+                });
+                console.log(JSON.stringify(item));
+                finalAnswer = item;
+            }else{
+                $(idName).each((i, el) => {
+                    if(i == instanceCount){
+                        const item = $(el).text();
+                        finalAnswer = item.split(prefix).reverse()[0];
+                    }
+                });
+            }
             console.log(`Answer: ${finalAnswer}`);
             res.send(`Answer: ${finalAnswer}`);
             res.end();