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.gitignore

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+node_modules

Dockerfile

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+FROM node:latest
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install app dependencies
+COPY package*.json ./
+RUN npm install
+
+# Bundle app source
+COPY . .
+
+# Expose port and start application
+EXPOSE 8080
+CMD [ "node", "server.js" ]

package.json

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+{
+  "dependencies": {
+    "chrome-aws-lambda": "^10.1.0",
+    "cors": "^2.8.5",
+    "express": "^4.18.2",
+    "puppeteer": "^21.1.0",
+    "puppeteer-core": "^21.1.0"
+  },
+  "name": "server",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "start": "node server.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": ""
+}

server.js

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+const app = require("express")();
+
+let chrome = {};
+let puppeteer;
+
+if (process.env.AWS_LAMBDA_FUNCTION_VERSION) {
+  chrome = require("chrome-aws-lambda");
+  puppeteer = require("puppeteer-core");
+} else {
+  puppeteer = require("puppeteer");
+}
+
+app.get("/", (req, res) => {
+  res.send('Hello AuthCode')
+})
+
+app.get("/api", async (req, res) => {
+  let options = {};
+
+  if (process.env.AWS_LAMBDA_FUNCTION_VERSION) {
+    options = {
+      args: [...chrome.args, "--hide-scrollbars", "--disable-web-security"],
+      defaultViewport: chrome.defaultViewport,
+      executablePath: await chrome.executablePath,
+      headless: true,
+      ignoreHTTPSErrors: true,
+    };
+  }
+
+  try {
+    let browser = await puppeteer.launch(options);
+
+    let page = await browser.newPage();
+    await page.goto("https://liaobots.work/");
+    await page.click('label.button');
+    await page.waitForNavigation();
+    await page.waitForTimeout(2000);
+
+    // Execute JavaScript code in the context of the page
+    const value = await page.evaluate(() => {
+        // Retrieve the value from localStorage
+        return localStorage.getItem('authCode');
+    });
+
+    res.send(value);
+  } catch (err) {
+    console.error(err);
+    return null;
+  }
+});
+
+app.listen(process.env.PORT || 3000, () => {
+  console.log("Server started");
+});
+
+module.exports = app;

test.js

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+const app = require("express")();
+
+let chrome = {};
+let puppeteer;
+
+if (process.env.AWS_LAMBDA_FUNCTION_VERSION) {
+  chrome = require("chrome-aws-lambda");
+  puppeteer = require("puppeteer-core");
+} else {
+  puppeteer = require("puppeteer");
+}
+
+app.get("/api", async (req, res) => {
+  let options = {};
+
+  if (process.env.AWS_LAMBDA_FUNCTION_VERSION) {
+    options = {
+      args: [...chrome.args, "--hide-scrollbars", "--disable-web-security"],
+      defaultViewport: chrome.defaultViewport,
+      executablePath: await chrome.executablePath,
+      headless: true,
+      ignoreHTTPSErrors: true,
+    };
+  }
+
+  try {
+    let browser = await puppeteer.launch(options);
+
+    let page = await browser.newPage();
+    await page.goto("https://liaobots.work/");
+    await page.click('label.button');
+    await page.waitForNavigation();
+    await page.waitForTimeout(2000);
+
+    // Execute JavaScript code in the context of the page
+    const value = await page.evaluate(() => {
+        // Retrieve the value from localStorage
+        return localStorage.getItem('authCode');
+    });
+
+    res.send(value);
+  } catch (err) {
+    console.error(err);
+    return null;
+  }
+});
+
+app.listen(process.env.PORT || 3000, () => {
+  console.log("Server started");
+});
+
+module.exports = app;