init

.gitignore

+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.pnp.*

README.md

+# Bungholio
+
+Monitors Amazon and sends a text when watched products become available. It will send a text at most once per day per product.
+
+## Installation
+
+1. Clone this repo.
+2. Modify items.json with the name and url of products you want to watch.
+3. Create a .env file with the following Twilio attributes
+
+```
+accountSid=twilioSid
+authToken=TwilioAuthToken
+twilioFrom='+yourTwilioPhoneNumber'
+twilioTo='+phoneNumberToText'
+```
+
+4. Run it
+
+```
+   node index.js
+```

index.js

+const puppeteer = require('puppeteer');
+const Promise = require('bluebird');
+const fs = require('fs');
+const moment = require('moment');
+
+require('dotenv').config();
+
+const client = require('twilio')(process.env.accountSid, process.env.authToken);
+
+const file = require('./items');
+
+const items = file.items;
+
+async function checkItem(page, item) {
+  console.log(`Checking ${item.name}`);
+  await page.goto(item.url);
+
+  const canAdd = await page.$('#add-to-cart-button');
+  const notInStock = (await page.content()).match(/in stock on/gi);
+
+  return canAdd && !notInStock;
+}
+
+async function sendSMS(item) {
+  return client.messages.create({
+    body: `${item.name} available! ${item.url}`,
+    from: process.env.twilioFrom,
+    to: process.env.twilioTo
+  });
+}
+
+async function run() {
+  console.log('');
+  console.log(`Starting at ${moment().toISOString()}`);
+  const browser = await puppeteer.launch();
+
+  const page = await browser.newPage();
+
+  await page.setViewport({
+    width: 1680,
+    height: 1050
+  });
+
+  await Promise.map(
+    items,
+    async item => {
+      const oneDayAgo = moment().subtract(1, 'days');
+      if (!item.found || moment(item.found).isBefore(oneDayAgo)) {
+        const available = await checkItem(page, item);
+
+        if (available) {
+          item.found = moment().toISOString();
+          console.log(`${item.name} is available.`);
+          await sendSMS(item);
+        } else {
+          console.log(`${item.name} is not available.`);
+        }
+        console.log('Waiting...');
+        return Promise.delay(4000);
+      }
+    },
+    { concurrency: 1 }
+  );
+
+  const update = { items: items };
+  console.log('finishing...');
+  fs.writeFileSync('items.json', JSON.stringify(update, null, 4));
+  await browser.close();
+  console.log('browser closed');
+  return;
+}
+
+run();
+
+setInterval(async function() {
+  await run();
+  console.log('back');
+  console.log('waiting 15 minutes');
+}, 15 * 60 * 1000);

items.json

+{
+    "items": [
+        {
+            "name": "Charmin TP",
+            "url": "https://www.amazon.com/gp/product/B0798C1NYR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1"
+        },
+        {
+            "name": "Presto Paper Towels",
+            "url": "https://www.amazon.com/gp/product/B07QY8P3B1/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1"
+        },
+        {
+            "name": "Angel Soft TP",
+            "url": "https://www.amazon.com/Angel-Soft-Toilet-Double-Regular/dp/B07SPY4HM8/ref=sr_1_1?crid=9RJ5GS2DWFKQ&keywords=toilet+paper&qid=1585684440&sprefix=toil%2Chpc%2C143&sr=8-1"
+        },
+        {
+            "name": "test tshirt",
+            "url": "https://www.amazon.com/Jerzees-Heavyweight-Sleeve-T-Shirt-Heather/dp/B00BBW7REI/ref=sr_1_1?dchild=1&keywords=tsjort&qid=1585676131&sr=8-1",
+            "found": "2020-03-31T21:44:33.609Z"
+        }
+    ]
+}
\ No newline at end of file

package.json

+{
+  "name": "bungholio",
+  "version": "0.0.1",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "bluebird": "^3.7.2",
+    "dotenv": "^8.2.0",
+    "moment": "^2.24.0",
+    "puppeteer": "^2.1.1",
+    "twilio": "^3.41.1"
+  }
+}