Allow for unlimited retries, add configuration to set a start and end time for checking, don't fail if a network error prevents a page from loading, and update the readme

config.example.json

@@ -3,8 +3,10 @@
     "password":"",
     "cv2":"",
     "item_page":"",
-    "refresh_time":"60",
+    "refresh_time":"55",
     "refresh_tries": "60",
+    "start_time": "7:00",
+    "end_time": "20:00",
     "price_limit":"925",
     "auto_submit":"true"
 }

newegg-purchaser.js

@@ -26,16 +26,30 @@ async function run() {
     });
 
     const page = await browser.newPage(),
-        maxVariance = 8;
+        maxVariance = 8,
+        startTime = Number(config.start_time.replace(/:.*/, "")) + Number(config.start_time.replace(/^[^:]*:/, "")) / 60,
+        endTime = Number(config.end_time.replace(/:.*/, "")) + Number(config.end_time.replace(/^[^:]*:/, "")) / 60;
 
     let success = true,
         randomVariance = 0,
-        currentTry = 1;
+        currentTry = 1,
+        date,
+        timeNow;
+
+    async function navigateToPage(url) {
+        try {
+            await page.goto(url, { waitUntil: "load" });
+        } catch (err) {
+            log(`Failed to navigate to ${url}, retrying in 30 seconds...`);
+            await page.waitForTimeout(30000);
+            await navigateToPage(url);
+        }
+    }
 
     log("Started bot");
 
     while (true) {
-        await page.goto("https://secure.newegg.ca/NewMyAccount/AccountLogin.aspx?nextpage=https%3a%2f%2fwww.newegg.ca%2f", { waitUntil: "load" });
+        await navigateToPage("https://secure.newegg.ca/NewMyAccount/AccountLogin.aspx?nextpage=https%3a%2f%2fwww.newegg.ca%2f");
 
         if (page.url().includes("signin")) {
             try {
@@ -78,35 +92,43 @@ async function run() {
         await page.waitForTimeout(3500);
 
         while (true) {
-            await page.goto(`https://www.newegg.ca/${config.item_page}`, { waitUntil: "load" });
+            date = new Date();
+            timeNow = date.getHours() + date.getMinutes() / 60;
 
-            if (await clickButtonWithText(page, "Add to cart")) {
+            if (timeNow >= startTime && timeNow <= endTime) {
-                log("Adding the product the to cart");
+                await navigateToPage(`https://www.newegg.ca/${config.item_page}`);
-                await page.waitForSelector(".modal-content", { timeout: 5000 });
-                await page.waitForTimeout(1000);
 
-                if (await clickButtonWithText(page, "No, thanks")) {
+                if (await clickButtonWithText(page, "Add to cart")) {
-                    log("Rejected product coverage option");
+                    log("Adding the product the to cart");
-                }
+                    await page.waitForSelector(".modal-content", { timeout: 5000 });
+                    await page.waitForTimeout(1000);
 
-                try {
+                    if (await clickButtonWithText(page, "No, thanks")) {
-                    await page.waitForSelector(".message-title", { timeout: 5000 });
+                        log("Rejected product coverage option");
-                    log("Successfully added the item to the cart!");
+                    }
-                } catch (error) {
+
-                    log("Fail: Added to cart but no success window appeared");
+                    try {
+                        await page.waitForSelector(".message-title", { timeout: 5000 });
+                        log("Successfully added the item to the cart!");
+                    } catch (error) {
+                        log("Fail: Added to cart but no success window appeared");
+                        success = false;
+                    }
+
+                    break;
+                } else if (config.refresh_tries !== 0 && currentTry > config.refresh_tries) {
+                    log(`Fail: Maximum number of refresh tries reached (${config.refresh_tries})`);
                     success = false;
+                    break;
+                } else {
+                    randomVariance = Math.floor(Math.random() * maxVariance);
+                    log(`(${currentTry}) Product currently unavailable, retrying in ${Number(config.refresh_time) + randomVariance} seconds...`);
+                    currentTry++;
+                    await page.waitForTimeout((Number(config.refresh_time) + randomVariance) * 1000);
                 }
-
-                break;
-            } else if (currentTry > config.refresh_tries) {
-                log(`Fail: Maximum number of refresh tries reached (${config.refresh_tries})`);
-                success = false;
-                break;
             } else {
-                randomVariance = Math.floor(Math.random() * maxVariance);
+                log(`${date.getHours()}:${date.getMinutes()} is outside the active time period between ${config.start_time} and ${config.end_time}`);
-                log(`(${currentTry}) Product currently unavailable, retrying in ${Number(config.refresh_time) + randomVariance} seconds...`);
+                await page.waitForTimeout(60000);
-                currentTry++;
-                await page.waitForTimeout((Number(config.refresh_time) + randomVariance) * 1000);
             }
         }
     }
@@ -114,7 +136,7 @@ async function run() {
     if (success) {
         while (true) {
             log("Navigating to secure checkout");
-            await page.goto("https://secure.newegg.ca/shop/cart", { waitUntil: "load" });
+            await navigateToPage("https://secure.newegg.ca/shop/cart");
 
             const totalPriceElement = await page.$(".summary-content-total span strong"),
                 totalPrice = await page.evaluate(totalPriceElement => totalPriceElement.textContent, totalPriceElement);

readme.md

@@ -15,10 +15,12 @@ PUPPETEER_PRODUCT=firefox npm install puppeteer
   * `cv2`: code on the back of your credit card
   * `item_page`: the part of the URL (starting with a slash) for the product after `https://www.newegg.ca` (eg: `/amd-ryzen-9-5900x/p/N82E16819113664`)
   * `refresh_time`: amount of time between page refreshes (with a random variance)
-  * `refresh_tries`: the number of times the script will check before quitting (to avoid getting banned)
+  * `refresh_tries`: the number of times the script will check before quitting (set to 0 for unlimited)
+  * `start_time`: a 24 hour time in the format `7:00` that determines when the script will start checking for the day
+  * `end_time`: a 24 hour time in the format `20:00` that determines when the script will stop checking for the day
   * `auto_submit`: set this to false if you want to do a test run (everything up to the actual purchase)
   * `price_limit`: set this to a number you don't want your cart total to exceed before checking out
 
 ## Credits
 
-Inspired by https://github.com/Ataraksia/NeweggBot
+Inspired by and some code borrowed from: https://github.com/Ataraksia/NeweggBot