How to use promisified method in Puppeteer

Best JavaScript code snippet using puppeteer

promisify.js

Source:promisify.js Github

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...150 var method = callback;151 if (typeof method === "string") {152 callback = fn;153 }154 function promisified() {155 var _receiver = receiver;156 if (receiver === THIS)157 _receiver = this;158 var promise = new Promise(INTERNAL);159 promise._captureStackTrace();160 var cb = typeof method === "string" && this !== defaultThis ? this[method] : callback;161 var fn = nodebackForPromise(promise, multiArgs);162 try {163 cb.apply(_receiver, withAppended(arguments, fn));164 } catch (e) {165 promise._rejectCallback(maybeWrapAsError(e), true, true);166 }167 if (!promise._isFateSealed())168 promise._setAsyncGuaranteed();...

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asyncify.js

Source:asyncify.js Github

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1var async = require('../lib');2var assert = require('assert');3var expect = require('chai').expect;4describe('asyncify', function(){5 it('asyncify', function(done) {6 var parse = async.asyncify(JSON.parse);7 parse("{\"a\":1}", function (err, result) {8 assert(!err);9 expect(result.a).to.equal(1);10 done();11 });12 });13 it('asyncify null', function(done) {14 var parse = async.asyncify(function() {15 return null;16 });17 parse("{\"a\":1}", function (err, result) {18 assert(!err);19 expect(result).to.equal(null);20 done();21 });22 });23 it('variable numbers of arguments', function(done) {24 async.asyncify(function (/*x, y, z*/) {25 return arguments;26 })(1, 2, 3, function (err, result) {27 expect(result.length).to.equal(3);28 expect(result[0]).to.equal(1);29 expect(result[1]).to.equal(2);30 expect(result[2]).to.equal(3);31 done();32 });33 });34 it('catch errors', function(done) {35 async.asyncify(function () {36 throw new Error("foo");37 })(function (err) {38 assert(err);39 expect(err.message).to.equal("foo");40 done();41 });42 });43 it('dont catch errors in the callback', function(done) {44 try {45 async.asyncify(function () {})(function (err) {46 if (err) {47 return done(new Error("should not get an error here"));48 }49 throw new Error("callback error");50 });51 } catch (err) {52 expect(err.message).to.equal("callback error");53 done();54 }55 });56 describe('promisified', function() {57 function promisifiedTests(Promise) {58 it('resolve', function(done) {59 var promisified = function(argument) {60 return new Promise(function (resolve) {61 setTimeout(function () {62 resolve(argument + " resolved");63 }, 15);64 });65 };66 async.asyncify(promisified)("argument", function (err, value) {67 if (err) {68 return done(new Error("should not get an error here"));69 }70 expect(value).to.equal("argument resolved");71 done();72 });73 });74 it('reject', function(done) {75 var promisified = function(argument) {76 return new Promise(function (resolve, reject) {77 reject(argument + " rejected");78 });79 };80 async.asyncify(promisified)("argument", function (err) {81 assert(err);82 expect(err.message).to.equal("argument rejected");83 done();84 });85 });86 it('callback error', function(done) {87 var promisified = function(argument) {88 return new Promise(function (resolve) {89 resolve(argument + " resolved");90 });91 };92 var call_count = 0;93 async.asyncify(promisified)("argument", function () {94 call_count++;95 if (call_count === 1) {96 throw new Error("error in callback");97 }98 });99 setTimeout(function () {100 expect(call_count).to.equal(1);101 done();102 }, 15);103 });104 }105 describe('native-promise-only', function() {106 var Promise = require('native-promise-only');107 promisifiedTests.call(this, Promise);108 });109 describe('bluebird', function() {110 var Promise = require('bluebird');111 // Bluebird reports unhandled rejections to stderr. We handle it because we expect112 // unhandled rejections:113 Promise.onPossiblyUnhandledRejection(function ignoreRejections() {});114 promisifiedTests.call(this, Promise);115 });116 describe('es6-promise', function() {117 var Promise = require('es6-promise').Promise;118 promisifiedTests.call(this, Promise);119 });120 describe('rsvp', function() {121 var Promise = require('rsvp').Promise;122 promisifiedTests.call(this, Promise);123 });124 });...

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MemoryFileSystem.js

Source:MemoryFileSystem.js Github

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1var path = require('path');2var dirname = path.dirname;3var MemoryFileSystem = require('memory-fs');4/**5 * Promisified memory-fs.6 * @param {Object|MemoryFileSystem} [data]7 * @constructor8 */9function PromisifiedMemoryFileSystem(data) {10 if (this instanceof PromisifiedMemoryFileSystem == false) {11 return new PromisifiedMemoryFileSystem(data);12 }13 this.fs = (data instanceof MemoryFileSystem) ? data : new MemoryFileSystem(data);14}15module.exports = PromisifiedMemoryFileSystem;16/**17 * @this {{fs:MemoryFileSystem, method:String, resolveWithFirstParam:Boolean}}18 * @returns {Promise}19 */20function callPromisified() {21 var fs = this.fs;22 var method = fs[this.method];23 var resolveWithFirstParam = typeof this.resolveWithFirstParam == 'boolean' ? this.resolveWithFirstParam : false;24 var args = Array.prototype.slice.call(arguments);25 return new Promise(function (resolve, reject) {26 var handler = function (err, result) {27 if (resolveWithFirstParam && err !== null) {28 return resolve(err);29 } else {30 return err ? reject(err) : resolve(result);31 }32 };33 method.apply(fs, args.concat([handler]));34 });35}36PromisifiedMemoryFileSystem.prototype.exists = function(path) {37 return callPromisified.call({method: 'exists', resolveWithFirstParam: true, fs: this.fs}, path);38};39PromisifiedMemoryFileSystem.prototype.stat = function (path) {40 return callPromisified.call({method: 'stat', fs: this.fs}, path);41};42PromisifiedMemoryFileSystem.prototype.readFile = function(path, encoding) {43 return callPromisified.call({method: 'readFile', fs: this.fs}, path, encoding);44};45PromisifiedMemoryFileSystem.prototype.readdir = function(path) {46 return callPromisified.call({method: 'readdir', fs: this.fs}, path);47};48PromisifiedMemoryFileSystem.prototype.mkdir = function(path) {49 return callPromisified.call({method: 'mkdir', fs: this.fs}, path);50};51PromisifiedMemoryFileSystem.prototype.mkdirp = function(path) {52 return callPromisified.call({method: 'mkdirp', fs: this.fs}, path);53};54PromisifiedMemoryFileSystem.prototype.rmdir = function(path) {55 return callPromisified.call({method: 'rmdir', fs: this.fs}, path);56};57PromisifiedMemoryFileSystem.prototype.unlink = function(path) {58 return callPromisified.call({method: 'unlink', fs: this.fs}, path);59};60PromisifiedMemoryFileSystem.prototype.readlink = function(path) {61 return callPromisified.call({method: 'readlink', fs: this.fs}, path);62};63PromisifiedMemoryFileSystem.prototype.writeFile = function(path, content, encoding) {64 return callPromisified.call({method: 'writeFile', fs: this.fs}, path, content, encoding);65};66PromisifiedMemoryFileSystem.prototype.join = MemoryFileSystem.prototype.join;67PromisifiedMemoryFileSystem.prototype.normalize = MemoryFileSystem.prototype.normalize;68PromisifiedMemoryFileSystem.prototype.createReadStream = MemoryFileSystem.prototype.createReadStream;69PromisifiedMemoryFileSystem.prototype.createWriteStream = MemoryFileSystem.prototype.createWriteStream;70/**71 * @param {String} path72 * @param {String} [content='']73 * @param {String} [encoding='utf-8']74 * @returns {Promise}75 */76PromisifiedMemoryFileSystem.prototype.writep = function (path, content, encoding) {77 var mkdirp = this.mkdirp.bind({method: 'mkdirp', fs: this.fs});78 var writeFile = this.writeFile.bind({method: 'writeFile', fs: this.fs});79 var content = typeof content == 'string' ? content : '';80 var encoding = encoding || 'utf-8';81 return mkdirp(dirname(path)).then(function () {82 return writeFile(path, content, encoding);83 });84};85/**86 * @returns {Promise}87 */88PromisifiedMemoryFileSystem.prototype.purge = function() {89 try {90 this.fs.data = {};91 } catch (e) {92 return Promise.reject(e);93 }94 return Promise.resolve();...

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4 const browser = await puppeteer.launch();5 const page = await browser.newPage();6 await page.screenshot({path: 'google.png'});7 await browser.close();8})();9const puppeteer = require('puppeteer');10const fs = require('fs');11puppeteer.launch().then(async browser => {12 const page = await browser.newPage();13 await page.screenshot({path: 'google.png'});14 await browser.close();15});16#### 2.1.1. browser.newPage()17const page = await browser.newPage();18#### 2.1.2. browser.close()19await browser.close();20#### 2.1.3. browser.pages()21const pages = await browser.pages();22#### 2.1.4. browser.userAgent()23const userAgent = await browser.userAgent();24#### 2.1.5. browser.version()25const version = await browser.version();26#### 2.1.6. browser.wsEndpoint()27const wsEndpoint = await browser.wsEndpoint();28#### 2.1.7. browser.isConnected()29const isConnected = await browser.isConnected();30#### 2.1.8. browser.process()31const process = await browser.process();32#### 2.1.9. browser.defaultBrowserContext()33const context = await browser.defaultBrowserContext();34#### 2.1.10. browser.browserContexts()35const contexts = await browser.browserContexts();36#### 2.1.11. browser.createIncognitoBrowserContext()

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Using AI Code Generation

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1const { promisify } = require("util");2const puppeteer = require("puppeteer");3const fs = require("fs");4const writeFile = promisify(fs.writeFile);5(async () => {6 const browser = await puppeteer.launch();7 const page = await browser.newPage();8 const screenshot = await page.screenshot();9 await writeFile("google.png", screenshot);10 await browser.close();11})();12const { promisify } = require("util");13const puppeteer = require("puppeteer");14const fs = require("fs");15const writeFile = promisify(fs.writeFile);16(async () => {17 const browser = await puppeteer.launch();18 const page = await browser.newPage();19 const screenshot = await page.screenshot();20 await writeFile("google.png", screenshot);21 await browser.close();22})();23const { promisify } = require("util");24const puppeteer = require("puppeteer");25const fs = require("fs");26const writeFile = promisify(fs.writeFile);27(async () => {28 const browser = await puppeteer.launch();29 const page = await browser.newPage();30 const screenshot = await page.screenshot();31 await writeFile("google.png", screenshot);32 await browser.close();33})();34const { promisify } = require("util");35const puppeteer = require("puppeteer");36const fs = require("fs");37const writeFile = promisify(fs.writeFile);38(async () => {39 const browser = await puppeteer.launch();40 const page = await browser.newPage();41 const screenshot = await page.screenshot();42 await writeFile("google.png", screenshot);43 await browser.close();44})();45const { promisify } = require("util");46const puppeteer = require("puppeteer");47const fs = require("fs");48const writeFile = promisify(fs.writeFile);49(async () => {50 const browser = await puppeteer.launch();51 const page = await browser.newPage();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const fs = require('fs');3const { promisify } = require('util');4const writeFile = promisify(fs.writeFile);5const readFile = promisify(fs.readFile);6const appendFile = promisify(fs.appendFile);7const path = require('path');8const { resolve } = require('path');9const { rejects } = require('assert');10const { get } = require('https');11const { stringify } = require('querystring');12const { exit } = require('process');13(async () => {14 const browser = await puppeteer.launch();15 const page = await browser.newPage();16 await page.goto(url);17 await page.screenshot({ path: 'example.png' });18 await browser.close();19})();20const puppeteer = require('puppeteer');21const fs = require('fs');22const { promisify } = require('util');23const writeFile = promisify(fs.writeFile);24const readFile = promisify(fs.readFile);25const appendFile = promisify(fs.appendFile);26const path = require('path');27const { resolve } = require('path');28const { rejects } = require('assert');29const { get } = require('https');30const { stringify } = require('querystring');31const { exit } = require('process');32async function init() {33 const browser = await puppeteer.launch();34 const page = await browser.newPage();35 await page.goto(url);36 await page.screenshot({ path: 'example.png' });37 await browser.close();38}39init();40const puppeteer = require('puppeteer');41const fs = require('fs');42const { promisify } = require('util');43const writeFile = promisify(fs.writeFile);44const readFile = promisify(fs.readFile);45const appendFile = promisify(fs.appendFile);46const path = require('path');47const { resolve } = require('path');48const { rejects } = require('assert');49const { get } = require('https');50const { stringify } = require('querystring');51const { exit } = require('process');52async function init() {53 try {54 const browser = await puppeteer.launch();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const fs = require('fs');3const util = require('util');4const writeFilePromise = util.promisify(fs.writeFile);5const readFilePromise = util.promisify(fs.readFile);6const createPDF = async () => {7 const browser = await puppeteer.launch();8 const page = await browser.newPage();9 const pdf = await page.pdf({ format: 'A4' });10 await browser.close();11 await writeFilePromise('google.pdf', pdf);12 console.log('PDF Created');13}14createPDF();15const puppeteer = require('puppeteer');16const fs = require('fs');17const util = require('util');18const writeFilePromise = util.promisify(fs.writeFile);19const readFilePromise = util.promisify(fs.readFile);20const createPDF = async () => {21 const browser = await puppeteer.launch();22 const page = await browser.newPage();23 const pdf = await page.pdf({ format: 'A4' });24 await browser.close();25 await writeFilePromise('google.pdf', pdf);26 console.log('PDF Created');27}28createPDF();29const puppeteer = require('puppeteer');30const fs = require('fs');31const util = require('util');32const writeFilePromise = util.promisify(fs.writeFile);33const readFilePromise = util.promisify(fs.readFile);34const createPDF = async () => {35 const browser = await puppeteer.launch();36 const page = await browser.newPage();37 const pdf = await page.pdf({ format: 'A4' });38 await browser.close();39 await writeFilePromise('google.pdf', pdf);40 console.log('PDF Created');41}42createPDF();43const puppeteer = require('puppeteer');44const fs = require('fs');45const util = require('util');46const writeFilePromise = util.promisify(fs.writeFile);47const readFilePromise = util.promisify(fs.readFile);48const createPDF = async () => {49 const browser = await puppeteer.launch();50 const page = await browser.newPage();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const devices = require('puppeteer/DeviceDescriptors');3const iPhone = devices['iPhone 6'];4async function run() {5 const browser = await puppeteer.launch({headless: false});6 const page = await browser.newPage();7 await page.emulate(iPhone);8 await page.screenshot({path: 'google.png'});9 await browser.close();10}11run();12const puppeteer = require('puppeteer');13const devices = require('puppeteer/DeviceDescriptors');14const iPhone = devices['iPhone 6'];15async function run() {16 const browser = await puppeteer.launch({headless: false});17 const page = await browser.newPage();18 await page.emulate(iPhone);19 await page.screenshot({path: 'google.png'});20 await browser.close();21}22run();23const puppeteer = require('puppeteer');24const devices = require('puppeteer/DeviceDescriptors');25const iPhone = devices['iPhone 6'];26async function run() {27 const browser = await puppeteer.launch({headless: false});28 const page = await browser.newPage();29 await page.emulate(iPhone);30 await page.screenshot({path: 'google.png'});31 await browser.close();32}33run();34const puppeteer = require('puppeteer');35const devices = require('puppeteer/DeviceDescriptors');36const iPhone = devices['iPhone 6'];37async function run() {38 const browser = await puppeteer.launch({headless: false});

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