How to use readProtocolStream method in Playwright Internal

Best JavaScript code snippet using playwright-internal

helper.js

Source:helper.js

...162        if (timeoutTimer)163            clearTimeout(timeoutTimer);164    }165}166async function readProtocolStream(client, handle, path) {167    let eof = false;168    let file;169    if (path)170        file = await openAsync(path, 'w');171    const bufs = [];172    while (!eof) {173        const response = await client.send('IO.read', { handle });174        eof = response.eof;175        const buf = Buffer.from(response.data, response.base64Encoded ? 'base64' : undefined);176        bufs.push(buf);177        if (path)178            await writeAsync(file, buf);179    }180    if (path)...

crProtocolHelper.js

Source:crProtocolHelper.js

...44  await client.send('Runtime.releaseObject', {45    objectId46  }).catch(error => {});47}48async function readProtocolStream(client, handle, path) {49  let eof = false;50  let fd;51  if (path) {52    await (0, _utils.mkdirIfNeeded)(path);53    fd = await _fs.default.promises.open(path, 'w');54  }55  const bufs = [];56  while (!eof) {57    const response = await client.send('IO.read', {58      handle59    });60    eof = response.eof;61    const buf = Buffer.from(response.data, response.base64Encoded ? 'base64' : undefined);62    bufs.push(buf);...

Tracing.js

Source:Tracing.js

...54  async stop() {55    let fulfill;56    const contentPromise = new Promise(x => fulfill = x);57    this._client.once('Tracing.tracingComplete', event => {58      helper.readProtocolStream(this._client, event.stream, this._path).then(fulfill);59    });60    await this._client.send('Tracing.end');61    this._recording = false;62    return contentPromise;63  }64}...

Using AI Code Generation

1const fs = require('fs');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch({ headless: false });5  const context = await browser.newContext();6  const page = await context.newPage();7  const stream = fs.createWriteStream('trace.json');8  await page.tracing.start({ screenshots: true, snapshots: true });9  await page.tracing.stop({ path: stream });10  await browser.close();11})();12const fs = require('fs');13const { chromium } = require('playwright');14(async () => {15  const browser = await chromium.launch({ headless: false });16  const context = await browser.newContext();17  const page = await context.newPage();18  const stream = fs.createWriteStream('trace.json');19  await page.tracing.start({ screenshots: true, snapshots: true });20  await page.tracing.stop({ path: stream });21  await browser.close();22})();23    at Tracing._throwIfAlreadyStarted (C:\Users\ashish\Documents\playwright\playwright\lib\server\tracing\tracing.js:34:11)24    at Tracing.start (C:\Users\ashish\Documents\playwright\playwright\lib\server\tracing\tracing.js:25:14)25    at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\page.js:308:29)26    at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\chromium\chromiumPage.js:34:15)27    at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\firefox\firefoxPage.js:34:15)28    at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\webkit\webkitPage.js:34:15

Using AI Code Generation

1const { readProtocolStream } = require('playwright/lib/server/protocol');2const { createReadStream } = require('fs');3const stream = createReadStream('./protocol.json');4const protocol = await readProtocolStream(stream);5console.log(protocol);6{7    {8        {9        },10        {11        },12        {13            {14            },15            {16            },17            {18              "description": "Line offset of the script within the resource with given URL (for script tags)."19            },20            {21            },22            {23            },24            {25            }26        },27        {28            {29            },30            {31            },32            {

Using AI Code Generation

1const { readProtocolStream } = require('playwright/lib/server/supplements/recorder/recorderApp');2const fs = require('fs');3(async () => {4  const stream = fs.createReadStream('recording.har', { encoding: 'utf-8' });5  const result = await readProtocolStream(stream);6  console.log(result);7})();8export type ProtocolCommand = {9  method: string;10  params: any;11  timestamp: number;12  sessionId?: string;13};14export async function readProtocolStream(stream: Readable) {15  const commands: ProtocolCommand[] = [];16  const parser = new HARParser();17  const har = await parser.parse(stream);18  for (const entry of har.log.entries) {19    for (const command of entry.playwrightCommands) {20      commands.push(command);21    }22  }23  return commands;24}25export class HARParser {26  async parse(stream: Readable) {27    const chunks: Buffer[] = [];28    for await (const chunk of stream)29      chunks.push(chunk);30    const text = Buffer.concat(chunks).toString('utf8');31    return JSON.parse(text);32  }33}34export class HARParser {35  async parse(stream: Readable) {36    const chunks: Buffer[] = [];37    for await (const chunk of stream)38      chunks.push(chunk);39    const text = Buffer.concat(chunks).toString('utf8');40    return JSON.parse(text);41  }42}

Using AI Code Generation

1const fs = require('fs');2const { readProtocolStream } = require('playwright/lib/server/protocol');3const stream = fs.createReadStream('protocol.json');4readProtocolStream(stream).then( protocol => {5  console.log(protocol);6});7const fs = require('fs');8const { readProtocolStream } = require('playwright/lib/server/protocol');9const stream = fs.createReadStream('protocol.json');10stream.on('data', (chunk) => {11  console.log(chunk);12});13const fs = require('fs');14const { readProtocolStream } = require('playwright/lib/server/protocol');15const stream = fs.createReadStream('protocol.json');16stream.on('data', (chunk) => {17  console.log(chunk);18});

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