How to use waitForWSEndpoint method in Puppeteer
Best JavaScript code snippet using puppeteer
chrome.js
Source:chrome.js 
...132 process.once('SIGHUP', killChrome)133 let criClient134 try {135 // await Promise.delay(5000)136 let listeningOn = await waitForWSEndpoint(chromeProcess, 30 * 1000)137 console.log(listeningOn)138 await delay(3000)139 criClient = await CRI(options)140 } catch (e) {141 killChrome()142 throw e143 }144 return criClient145 }146 /**147 * @desc Launch Chrome by finding an acceptable executable on the host system but do not connect to it148 * @param {?ChromeOptions} [options = {}]149 * @return {Promise<CRI>}150 */151 static async launchNoConnect (options = {}) {152 options = ensureOptions(options)153 if (options.executable == null) {154 options.executable = await ChromeFinder.findChrome()155 }156 let userDataDir = null157 if (!options.executable) {158 userDataDir = await fs.mkdtemp(CHROME_PROFILE_PATH)159 } else {160 userDataDir = options.userDataDir161 }162 const chromeArguments = chromeArgs(options, userDataDir)163 let killed = false164 const chromeProcess = cp.spawn(options.executable, chromeArguments, {165 stdio: ['ignore', 'ignore', 'pipe'],166 env: process.env,167 detached: process.platform !== 'win32'168 })169 process.on('exit', killChrome)170 chromeProcess.once('exit', maybeRemoveUDataDir)171 process.on('SIGINT', () => {172 killChrome()173 process.exit(130)174 })175 process.once('SIGTERM', killChrome)176 process.once('SIGHUP', killChrome)177 try {178 // await Promise.delay(5000)179 let listeningOn = await waitForWSEndpoint(chromeProcess, 30 * 1000)180 console.log(listeningOn)181 } catch (e) {182 killChrome()183 throw e184 }185 function maybeRemoveUDataDir () {186 if (!options.userDataDir) {187 try {188 fs.removeSync(userDataDir)189 } catch (e) {}190 }191 }192 function killChrome () {193 if (killed) {...
BrowserRunner.js
Source:BrowserRunner.js
...125 }126 async setupConnection(options) {127 const { usePipe, timeout, slowMo, preferredRevision } = options;128 if (!usePipe) {129 const browserWSEndpoint = await waitForWSEndpoint(this.proc, timeout, preferredRevision);130 const transport = await WebSocketTransport_1.WebSocketTransport.create(browserWSEndpoint);131 this.connection = new Connection_1.Connection(browserWSEndpoint, transport, slowMo);132 }133 else {134 // stdio was assigned during start(), and the 'pipe' option there adds the 4th and 5th items to stdio array135 const { 3: pipeWrite, 4: pipeRead } = this.proc.stdio;136 const transport = new PipeTransport_1.PipeTransport(pipeWrite, pipeRead);137 this.connection = new Connection_1.Connection('', transport, slowMo);138 }139 return this.connection;140 }141}142exports.BrowserRunner = BrowserRunner;143function waitForWSEndpoint(browserProcess, timeout, preferredRevision) {144 return new Promise((resolve, reject) => {145 const rl = readline.createInterface({ input: browserProcess.stderr });146 let stderr = '';147 const listeners = [148 helper_1.helper.addEventListener(rl, 'line', onLine),149 helper_1.helper.addEventListener(rl, 'close', () => onClose()),150 helper_1.helper.addEventListener(browserProcess, 'exit', () => onClose()),151 helper_1.helper.addEventListener(browserProcess, 'error', (error) => onClose(error)),152 ];153 const timeoutId = timeout ? setTimeout(onTimeout, timeout) : 0;154 /**155 * @param {!Error=} error156 */157 function onClose(error) {...
initChrome.js
Source:initChrome.js
...211 process.exit(130)212 })213 process.once('SIGTERM', killChrome)214 process.once('SIGHUP', killChrome)215 await waitForWSEndpoint(chromeProcess, 15 * 1000)216 return { chromeProcess, killChrome }217}218// module.exports = initChrome219function waitForWSEndpoint (chromeProcess, timeout) {220 return new Promise((resolve, reject) => {221 const rl = readline.createInterface({ input: chromeProcess.stderr })222 let stderr = ''223 const listeners = [224 helper.addEventListener(rl, 'line', onLine),225 helper.addEventListener(rl, 'close', onClose),226 helper.addEventListener(chromeProcess, 'exit', onClose),227 helper.addEventListener(chromeProcess, 'error', onClose)228 ]229 const timeoutId = timeout ? setTimeout(onTimeout, timeout) : 0...
Runner.js
Source:Runner.js
...62 env,63 stdio: ['inherit', 'inherit', 'pipe']64 }65 );66 waitForWSEndpoint(nodeProcess, webSocket => runToolForProcess({webSocket, toolFactory, ondemand, callback}));67 await new Promise(resolve => nodeProcess.once('exit', resolve));68}69async function setupOnDemand(connection, wrapper) {70 function setupEnvironment() {71 const nativeConsoleDebug = console.debug;72 function sendCommand(command) {73 let resolveCallback;74 const promise = new Promise(resolve => resolveCallback = resolve);75 const id = setTimeout(resolve, 30000);76 function resolve() {77 resolveCallback();78 clearTimeout(id);79 }80 nativeConsoleDebug(command, resolve);81 return promise;82 }83 this.startTheTool = sendCommand.bind(null, 'thetool:start');84 this.stopTheTool = sendCommand.bind(null, 'thetool:stop');85 this.captureTheTool = sendCommand.bind(null, 'thetool:capture');86 }87 await connection.send('Runtime.evaluate', {88 expression: `(${setupEnvironment.toString()})()`89 });90 connection.on('Runtime.consoleAPICalled', async message => {91 if (message.type !== 'debug')92 return;93 if (!message.args.length)94 return;95 const arg0 = message.args[0].value;96 if (arg0 === 'thetool:start')97 await wrapper.start();98 else if (arg0 === 'thetool:stop')99 await wrapper.stop();100 else if (arg0 === 'thetool:capture')101 await wrapper.capture();102 else103 return;104 await connection.send('Runtime.callFunctionOn', {105 functionDeclaration: (function() { this(); }).toString(),106 objectId: message.args[1].objectId107 });108 });109}110async function runToolForProcess({webSocket, toolFactory, ondemand, callback}) {111 const connection = new Connection(await WebSocketTransport.create(webSocket));112 const tool = toolFactory(connection);113 const wrapper = new ToolWrapper(tool, callback);114 if (ondemand) {115 await setupOnDemand(connection, wrapper);116 await connection.send('NodeWorker.enable', {117 waitForDebuggerOnStart: true118 });119 connection.on('NodeWorker.attachedToWorker', ({sessionId}) => runToolForWorker({120 connection,121 sessionId,122 toolFactory,123 callback,124 wrapper: tool.onlyMain() ? wrapper : null125 }));126 } else {127 await wrapper.start();128 }129 await connection.send('Runtime.enable');130 let finishedCallback;131 const finishedPromise = new Promise(resolve => finishedCallback = resolve);132 connection.on('Runtime.executionContextDestroyed', message => message.executionContextId === 1 && finishedCallback());133 await connection.send('Runtime.runIfWaitingForDebugger');134 await finishedPromise;135 if (!ondemand)136 await wrapper.stop();137 await connection.close();138}139async function runToolForWorker({connection: mainConnection, sessionId, toolFactory, wrapper, callback}) {140 const connection = new Connection(new WorkerTransport(mainConnection, sessionId));141 wrapper = wrapper || new ToolWrapper(toolFactory(connection), callback);142 await setupOnDemand(connection, wrapper);143 await connection.send('Runtime.enable');144 await connection.send('Runtime.runIfWaitingForDebugger', {});145}146const blacklist = new Set([147 'Waiting for the debugger to disconnect...',148 'For help, see: https://nodejs.org/en/docs/inspector',149 'For help see: https://nodejs.org/en/docs/inspector',150 'Debugger attached.'151]);152function waitForWSEndpoint(nodeProcess, callback) {153 const rl = readline.createInterface({ input: nodeProcess.stderr });154 rl.on('line', onLine);155 rl.on('close', cleanup);156 nodeProcess.on('exit', cleanup);157 nodeProcess.on('error', cleanup);158 function cleanup() {159 rl.removeListener('line', onLine);160 rl.removeListener('close', cleanup);161 nodeProcess.removeListener('exit', cleanup);162 nodeProcess.removeListener('error', cleanup);163 }164 function onLine(line) {165 const match = line.match(/^Debugger listening on (ws:\/\/.*)$/);166 if (!match) {...
browserProcess.ts
Source:browserProcess.ts
...57 cancellationToken: CancellationToken,58) => {59 const endpoint =60 options.connection === 061 ? await waitForWSEndpoint(process, cancellationToken)62 : await retryGetBrowserEndpoint(63 `http://localhost:${options.connection}`,64 cancellationToken,65 logger,66 );67 const inspectWs = options.inspectUri68 ? constructInspectorWSUri(options.inspectUri, options.url, endpoint)69 : endpoint;70 while (true) {71 try {72 return await WebSocketTransport.create(inspectWs, cancellationToken);73 } catch (e) {74 if (cancellationToken.isCancellationRequested) {75 throw e;76 }77 await delay(200);78 }79 }80};81export class NonTrackedBrowserProcess implements IBrowserProcess {82 public readonly pid = undefined;83 public readonly onExit = new EventEmitter<number>().event;84 public readonly onError = new EventEmitter<Error>().event;85 constructor(private readonly logger: ILogger) {}86 /**87 * @inheritdoc88 */89 public async transport(90 options: ITransportOptions,91 cancellationToken: CancellationToken,92 ): Promise<ITransport> {93 return inspectWsConnection(this.logger, this, options, cancellationToken);94 }95 /**96 * @inheritdoc97 */98 public kill() {99 // noop100 }101}102/**103 * Browser process104 */105export class ChildProcessBrowserProcess implements IBrowserProcess {106 public readonly pid = undefined;107 private readonly exitEmitter = new EventEmitter<number>();108 public readonly onExit = this.exitEmitter.event;109 private readonly errorEmitter = new EventEmitter<Error>();110 public readonly onError = this.errorEmitter.event;111 constructor(112 private readonly cp: ChildProcessWithoutNullStreams,113 private readonly logger: ILogger,114 ) {115 cp.on('exit', code => this.exitEmitter.fire(code || 0));116 cp.on('error', error => this.errorEmitter.fire(error));117 }118 public get stderr() {119 return this.cp.stderr;120 }121 public get stdio() {122 return this.cp.stdio;123 }124 /**125 * @inheritdoc126 */127 public async transport(128 options: ITransportOptions,129 cancellationToken: CancellationToken,130 ): Promise<ITransport> {131 if (options.connection === 'pipe') {132 return new RawPipeTransport(133 this.logger,134 this.cp.stdio[3] as Writable,135 this.cp.stdio[4] as Readable,136 );137 }138 return inspectWsConnection(this.logger, this, options, cancellationToken);139 }140 /**141 * @inheritdoc142 */143 public kill() {144 killTree(this.cp.pid as number, this.logger);145 }146}147function waitForWSEndpoint(148 browserProcess: IBrowserProcess,149 cancellationToken: CancellationToken,150): Promise<string> {151 if (!browserProcess.stderr) {152 throw new Error('Cannot wait for a websocket for a target that lacks stderr');153 }154 return new Promise((resolve, reject) => {155 // eslint-disable-next-line @typescript-eslint/no-non-null-assertion156 const rl = readline.createInterface({ input: browserProcess.stderr! });157 let stderr = '';158 const onClose = () => onDone();159 rl.on('line', onLine);160 rl.on('close', onClose);161 const disposable = new DisposableList([...
Launcher.js
Source:Launcher.js
...86 if (options.handleSIGINT !== false)87 process.once('SIGINT', killChrome);88 try {89 const connectionDelay = options.slowMo || 0;90 const browserWSEndpoint = await waitForWSEndpoint(chromeProcess, options.timeout || 30 * 1000);91 const connection = await Connection.create(browserWSEndpoint, connectionDelay);92 return new Browser(connection, !!options.ignoreHTTPSErrors, killChrome);93 } catch (e) {94 killChrome();95 throw e;96 }97 function killChrome() {98 if (killed)99 return;100 killed = true;101 if (process.platform === 'win32')102 childProcess.execSync(`taskkill /pid ${chromeProcess.pid} /T /F`);103 else104 chromeProcess.kill('SIGKILL');105 }106 }107 /**108 * @param {string} options109 * @return {!Promise<!Browser>}110 */111 static async connect({browserWSEndpoint, ignoreHTTPSErrors = false}) {112 const connection = await Connection.create(browserWSEndpoint);113 return new Browser(connection, !!ignoreHTTPSErrors);114 }115}116/**117 * @param {!ChildProcess} chromeProcess118 * @param {number} timeout119 * @return {!Promise<string>}120 */121function waitForWSEndpoint(chromeProcess, timeout) {122 return new Promise((resolve, reject) => {123 const rl = readline.createInterface({ input: chromeProcess.stderr });124 let stderr = '';125 const listeners = [126 helper.addEventListener(rl, 'line', onLine),127 helper.addEventListener(rl, 'close', onClose),128 helper.addEventListener(chromeProcess, 'exit', onClose)129 ];130 const timeoutId = timeout ? setTimeout(onTimeout, timeout) : 0;131 function onClose() {132 cleanup();133 reject(new Error([134 'Failed to launch chrome!',135 stderr,...
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({headless: false});4 const page = await browser.newPage();5 await page.waitFor(1000);6 await page.screenshot({path: 'google.png'});7 await browser.close();8})();9const puppeteer = require('puppeteer');10(async () => {11 const browser = await puppeteer.launch({headless: false});12 const page = await browser.newPage();13 await page.waitFor(1000);14 await page.screenshot({path: 'google.png'});15 await browser.close();16})();17const puppeteer = require('puppeteer');18(async () => {19 const browser = await puppeteer.launch({headless: false});20 const page = await browser.newPage();21 await page.waitFor(1000);22 await page.screenshot({path: 'google.png'});23 await browser.close();24})();25const puppeteer = require('puppeteer');26(async () => {27 const browser = await puppeteer.launch({headless: false});28 const page = await browser.newPage();29 await page.waitFor(1000);30 await page.screenshot({path: 'google.png'});31 await browser.close();32})();33const puppeteer = require('puppeteer');34(async () => {35 const browser = await puppeteer.launch({headless: false});36 const page = await browser.newPage();37 await page.waitFor(1000);38 await page.screenshot({path: 'google.png'});39 await browser.close();40})();41const puppeteer = require('puppeteer');42(async () => {43 const browser = await puppeteer.launch({headless: false});
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({4 });5 const page = await browser.newPage();6 const wsEndpoint = await browser.waitForWSEndpoint();7 console.log(wsEndpoint);8 await browser.close();9})();10const puppeteer = require('puppeteer');11(async () => {12 const browser = await puppeteer.launch({13 });14 const page = await browser.newPage();15 console.log(target);16 await browser.close();17})();18const puppeteer = require('puppeteer');19(async () => {20 const browser = await puppeteer.launch({21 });22 const page = await browser.newPage();23 await page.waitFor(2000);24 await browser.close();25})();26const puppeteer = require('puppeteer');27(async () => {28 const browser = await puppeteer.launch({
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({headless: false});4 const page = await browser.newPage();5 await page.waitFor(5000);6 await page.screenshot({path: 'example.png'});7 await browser.close();8})();
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({headless: false});4 const page = await browser.newPage();5 await page.waitFor(3000);6 await page.screenshot({path: 'google.png'});7 await browser.close();8})();9const puppeteer = require('puppeteer');10(async () => {11 const browser = await puppeteer.launch({headless: false});12 const page = await browser.newPage();13 await page.waitForNavigation();14 await page.screenshot({path: 'google.png'});15 await browser.close();16})();17const puppeteer = require('puppeteer');18(async () => {19 const browser = await puppeteer.launch({headless: false});20 const page = await browser.newPage();
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({headless: false});4 const page = await browser.newPage();5 await page.waitFor(5000);6 await browser.close();7})();8const puppeteer = require('puppeteer');9(async () => {10 const browser = await puppeteer.launch({headless: false});11 await browser.waitForWSEndpoint();12 const page = await browser.newPage();13 await page.waitFor(5000);14 await browser.close();15})();16const puppeteer = require('puppeteer');17(async () => {18 const browser = await puppeteer.launch({headless: false});19 const page = await browser.newPage();20 await page.waitFor(5000);21 console.log(target);22 await browser.close();23})();24const puppeteer = require('puppeteer');25(async () => {26 const browser = await puppeteer.launch({headless: false});27 const page = await browser.newPage();
Using AI Code Generation
1const puppeteer = require('puppeteer');2const waitForWSEndpoint = require('puppeteer-ws-endpoint');3(async () => {4 const browser = await puppeteer.launch();5 const wsEndpoint = await waitForWSEndpoint(browser);6 console.log(wsEndpoint);7 await browser.close();8})();9const puppeteer = require('puppeteer');10const waitForWSEndpoint = require('puppeteer-ws-endpoint');11(async () => {12 const browser = await puppeteer.launch();13 const wsEndpoint = await waitForWSEndpoint(browser);14 console.log(wsEndpoint);15 await browser.close();16})();
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({headless: false});4 const page = await browser.newPage();5 await page.waitForWSEndpoint();6 await browser.close();7})();
Using AI Code Generation
1const puppeteer = require('puppeteer');2const { waitForWSEndpoint } = require('puppeteer-core/lib/Launcher');3(async () => {4 const browser = await puppeteer.launch();5 const wsEndpoint = await waitForWSEndpoint(browser);6 console.log(wsEndpoint);7 await browser.close();8})();9const puppeteer = require('puppeteer');10const { waitForWSEndpoint } = require('puppeteer-core/lib/Launcher');11(async () => {12 const browser = await puppeteer.launch();13 const wsEndpoint = await waitForWSEndpoint(browser);14 console.log(wsEndpoint);15 await browser.close();16})();17const puppeteer = require('puppeteer');18const { waitForWSEndpoint } = require('puppeteer-core/lib/Launcher');19(async () => {20 const browser = await puppeteer.launch();21 const wsEndpoint = await waitForWSEndpoint(browser);22 console.log(wsEndpoint);23 await browser.close();24})();25const puppeteer = require('puppeteer');26const { waitForWSEndpoint } = require('puppeteer-core/lib/Launcher');27(async () => {28 const browser = await puppeteer.launch();29 const wsEndpoint = await waitForWSEndpoint(browser);30 console.log(wsEndpoint);31 await browser.close();32})();33const puppeteer = require('puppeteer');34const { waitForWSEndpoint } = require('puppeteer-core/lib/Launcher');35(async () => {36 const browser = await puppeteer.launch();37 const wsEndpoint = await waitForWSEndpoint(browser);38 console.log(wsEndpoint);39 await browser.close();40})();41const puppeteer = require('puppeteer');42const { waitForWSEndpoint } = require('puppeteer-core/lib/Launcher');43(async () => {44 const browser = await puppeteer.launch();45 const wsEndpoint = await waitForWSEndpoint(browser);
Using AI Code Generation
1const puppeteer = require('puppeteer');2const cluster = await Cluster.launch({3 puppeteerOptions: {headless: false},4});5await cluster.task(async ({page, data: url}) => {6 await page.goto(url);7});8await cluster.idle();9await cluster.close();10const puppeteer = require('puppeteer');11const browser = await puppeteer.launch({headless: false});12const page = await browser.newPage();13await browser.close();14#### Cluster.launch(options)
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