How to use readRequestPostData method in Playwright Internal

Best JavaScript code snippet using playwright-internal

NetworkObserver.jsm

Source: NetworkObserver.jsm Github

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...202 url: httpChannel.URI.spec,203 suspended: suspendedChannels ? true : undefined,204 requestId: requestId(httpChannel),205 redirectedFrom: oldChannel ? requestId(oldChannel) : undefined,206 postData: readRequestPostData(httpChannel),207 headers: requestHeaders(httpChannel),208 method: httpChannel.requestMethod,209 isNavigationRequest: httpChannel.isMainDocumentChannel,210 cause: causeType,211 causeString: causeTypeToString(causeType),212 frameId: this.frameId(httpChannel),213 /​/​ clients expect loaderId == requestId for document navigation214 loaderId: [215 Ci.nsIContentPolicy.TYPE_DOCUMENT,216 Ci.nsIContentPolicy.TYPE_SUBDOCUMENT,217 ].includes(causeType)218 ? requestId(httpChannel)219 : undefined,220 });221 }222 _onResponse(fromCache, httpChannel, topic) {223 const loadContext = getLoadContext(httpChannel);224 if (225 !loadContext ||226 !this._browserSessionCount.has(loadContext.topFrameElement)227 ) {228 return;229 }230 httpChannel.QueryInterface(Ci.nsIHttpChannelInternal);231 const causeType = httpChannel.loadInfo232 ? httpChannel.loadInfo.externalContentPolicyType233 : Ci.nsIContentPolicy.TYPE_OTHER;234 let remoteIPAddress;235 let remotePort;236 try {237 remoteIPAddress = httpChannel.remoteAddress;238 remotePort = httpChannel.remotePort;239 } catch (e) {240 /​/​ remoteAddress is not defined for cached requests.241 }242 this.emit("response", httpChannel, {243 requestId: requestId(httpChannel),244 securityDetails: getSecurityDetails(httpChannel),245 fromCache,246 headers: responseHeaders(httpChannel),247 requestHeaders: requestHeaders(httpChannel),248 remoteIPAddress,249 remotePort,250 status: httpChannel.responseStatus,251 statusText: httpChannel.responseStatusText,252 cause: causeType,253 causeString: causeTypeToString(causeType),254 frameId: this.frameId(httpChannel),255 /​/​ clients expect loaderId == requestId for document navigation256 loaderId: [257 Ci.nsIContentPolicy.TYPE_DOCUMENT,258 Ci.nsIContentPolicy.TYPE_SUBDOCUMENT,259 ].includes(causeType)260 ? requestId(httpChannel)261 : undefined,262 });263 }264 _onResponseFinished(browser, httpChannel, body) {265 const responseStorage = this._browserResponseStorages.get(browser);266 if (!responseStorage) {267 return;268 }269 responseStorage.addResponseBody(httpChannel, body);270 this.emit("requestfinished", httpChannel, {271 requestId: requestId(httpChannel),272 errorCode: getNetworkErrorStatusText(httpChannel.status),273 });274 }275 isActive(browser) {276 return !!this._browserSessionCount.get(browser);277 }278 startTrackingBrowserNetwork(browser) {279 const value = this._browserSessionCount.get(browser) || 0;280 this._browserSessionCount.set(browser, value + 1);281 if (value === 0) {282 Services.obs.addObserver(this._onRequest, "http-on-modify-request");283 Services.obs.addObserver(284 this._onExamineResponse,285 "http-on-examine-response"286 );287 Services.obs.addObserver(288 this._onCachedResponse,289 "http-on-examine-cached-response"290 );291 Services.obs.addObserver(292 this._onCachedResponse,293 "http-on-examine-merged-response"294 );295 this._browserResponseStorages.set(296 browser,297 new ResponseStorage(298 MAX_RESPONSE_STORAGE_SIZE,299 MAX_RESPONSE_STORAGE_SIZE /​ 10300 )301 );302 }303 return () => this.stopTrackingBrowserNetwork(browser);304 }305 stopTrackingBrowserNetwork(browser) {306 const value = this._browserSessionCount.get(browser);307 if (value) {308 this._browserSessionCount.set(browser, value - 1);309 } else {310 this._browserSessionCount.delete(browser);311 this._browserResponseStorages.delete(browser);312 this.dispose();313 }314 }315 /​**316 * Returns the frameId of the current httpChannel.317 */​318 frameId(httpChannel) {319 const loadInfo = httpChannel.loadInfo;320 return loadInfo.frameBrowsingContext?.id || loadInfo.browsingContext.id;321 }322}323const protocolVersionNames = {324 [Ci.nsITransportSecurityInfo.TLS_VERSION_1]: "TLS 1",325 [Ci.nsITransportSecurityInfo.TLS_VERSION_1_1]: "TLS 1.1",326 [Ci.nsITransportSecurityInfo.TLS_VERSION_1_2]: "TLS 1.2",327 [Ci.nsITransportSecurityInfo.TLS_VERSION_1_3]: "TLS 1.3",328};329function getSecurityDetails(httpChannel) {330 const securityInfo = httpChannel.securityInfo;331 if (!securityInfo) {332 return null;333 }334 securityInfo.QueryInterface(Ci.nsITransportSecurityInfo);335 if (!securityInfo.serverCert) {336 return null;337 }338 return {339 protocol: protocolVersionNames[securityInfo.protocolVersion] || "<unknown>",340 subjectName: securityInfo.serverCert.commonName,341 issuer: securityInfo.serverCert.issuerCommonName,342 /​/​ Convert to seconds.343 validFrom: securityInfo.serverCert.validity.notBefore /​ 1000 /​ 1000,344 validTo: securityInfo.serverCert.validity.notAfter /​ 1000 /​ 1000,345 };346}347function readRequestPostData(httpChannel) {348 if (!(httpChannel instanceof Ci.nsIUploadChannel)) {349 return undefined;350 }351 const iStream = httpChannel.uploadStream;352 if (!iStream) {353 return undefined;354 }355 const isSeekableStream = iStream instanceof Ci.nsISeekableStream;356 let prevOffset;357 if (isSeekableStream) {358 prevOffset = iStream.tell();359 iStream.seek(Ci.nsISeekableStream.NS_SEEK_SET, 0);360 }361 /​/​ Read data from the stream....

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Using AI Code Generation

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1const { readRequestPostData } = require('playwright/​lib/​server/​network');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 page.on('request', async (request) => {8 const postData = await readRequestPostData(request);9 console.log(postData);10 });11 await browser.close();12})();13{14 { name: 'name', value: 'John' },15 { name: 'surname', value: 'Doe' }16}17const { chromium } = require('playwright');18const browser = await chromium.launch();19const context = await browser.newContext();20const page = await context.newPage();21await page.click('text=Sign in');22await browser.close();

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Using AI Code Generation

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1const { readRequestPostData } = require('playwright/​lib/​server/​supplements/​har/​harTracer');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.route('**', async route => {8 const postData = await readRequestPostData(route.request());9 console.log(postData);10 await route.continue();11 });12 await page.fill('input[name="q"]', 'Hello World');13 await page.keyboard.press('Enter');14 await browser.close();15})();16Buffer(0) {}17await page.route('**', async route => {18 const postData = await readRequestPostData(route.request());19 console.log(postData);20 await route.continue();21});22await page.route('**', async route => {23 const postData = await readRequestPostData(route.request());24 console.log(postData);25 await route.continue();26});

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Using AI Code Generation

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1const { readRequestPostData } = require('playwright/​lib/​utils/​network');2const { readResponsePostData } = require('playwright/​lib/​utils/​network');3const { readRequestPostData } = require('playwright/​lib/​utils/​network');4const { readResponsePostData } = require('playwright/​lib/​utils/​network');5const { readRequestPostData } = require('playwright/​lib/​utils/​network');6const { readResponsePostData } = require('playwright/​lib/​utils/​network');7const { readRequestPostData } = require('playwright/​lib/​utils/​network');8const { readResponsePostData } = require('playwright/​lib/​utils/​network');9const { readRequestPostData } = require('playwright/​lib/​utils/​network');10const { readResponsePostData } = require('playwright/​lib/​utils/​network');11const { readRequestPostData } = require('playwright/​lib/​utils/​network');12const { readResponsePostData } = require('playwright/​lib/​utils/​network');13const { readRequestPostData } = require('playwright/​lib/​utils/​network');14const { readResponsePostData } = require('playwright/​lib/​utils/​network');15const { readRequestPostData } = require('playwright/​lib/​utils/​network');16const { readResponsePostData } = require('playwright/​lib/​utils/​network');

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Using AI Code Generation

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1const { readRequestPostData } = require('playwright/​lib/​server/​network');2const { chromium } = require('playwright');3const { expect } = require('chai');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 page.route('**', async (route, request) => {9 const postData = await readRequestPostData(request);10 expect(postData).to.equal('{"name":"John Doe"}');11 await route.fulfill({12 body: '{"success":true}',13 });14 });15 await page.evaluate(() => {16 headers: {17 },18 body: JSON.stringify({ name: 'John Doe' }),19 });20 });21 await browser.close();22})();23const { test, expect } = require('@playwright/​test');24test('should pass', async ({ page }) => {25 await page.evaluate(() => {26 headers: {27 },28 body: JSON.stringify({ name: 'John Doe' }),29 });30 });31 expect(true).toBe(true);32});33### `readRequestPostData(request)`

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Using AI Code Generation

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1const { readRequestPostData } = require('playwright/​lib/​server/​network');2const postData = await readRequestPostData(request);3console.log(postData);4You can use the Playwright Internal API by importing the module and using the methods you need. 5const { readRequestPostData } = require('playwright/​lib/​server/​network');6const postData = await readRequestPostData(request);7console.log(postData);8You can use the Playwright Internal API by importing the module and using the methods you need. 9const { readRequestPostData } = require('playwright/​lib/​server/​network');10const postData = await readRequestPostData(request);11console.log(postData);12You can use the Playwright Internal API by importing the module and using the methods you need. 13const { readRequestPostData } = require('playwright/​lib/​server/​network');14const postData = await readRequestPostData(request);15console.log(postData);

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Using AI Code Generation

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1const { readRequestPostData } = require('playwright/​lib/​server/​crNetworkManager');2const { HttpServer } = require('playwright/​lib/​server/​httpServer');3const { helper } = require('playwright/​lib/​helper');4(async () => {5 const server = await HttpServer.create();6 server.setHandler('/​post', async (request, response) => {7 const postData = await readRequestPostData(request);8 response.writeHead(200, { 'Content-Type': 'text/​plain' });9 response.write(postData);10 response.end();11 });12 server.setHandler('/​get', async (request, response) => {13 const postData = await readRequestPostData(request);14 response.writeHead(200, { 'Content-Type': 'text/​plain' });15 response.write('GET');16 response.end();17 });18 server.setHandler('/​empty', async (request, response) => {19 const postData = await readRequestPostData(request);20 response.writeHead(200, { 'Content-Type': 'text/​plain' });21 response.write(postData);22 response.end();23 });24 server.setHandler('/​invalid', async (request, response) => {25 const postData = await readRequestPostData(request);26 response.writeHead(200, { 'Content-Type': 'text/​plain' });27 response.write(postData);28 response.end();29 });30 server.setHandler('/​error', async (request, response) => {31 const postData = await readRequestPostData(request);32 response.writeHead(200, { 'Content-Type': 'text/​plain' });33 response.write(postData);34 response.end();35 });36 await server.start();37 const port = server.port();38 console.log('Server listening on port: ' + port);39 const browser = await chromium.launch({40 args: [`--remote-debugging-port=${port}`],41 });42 const context = await browser.newContext();43 const page = await context.newPage();44 await page.route('**/​*', route => {45 console.log(route.request().method() + ' ' + route.request().url());46 route.continue();47 });

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Using AI Code Generation

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1const {readRequestPostData} = require('playwright/​lib/​server/​network.js');2const {writeFile} = require('fs/​promises');3const {join} = require('path');4const {promisify} = require('util');5const {exec} = require('child_process');6const execAsync = promisify(exec);7const {test} = require('@playwright/​test');8test('test', async ({page, context}) => {9 await page.fill('input[name="foo"]', 'bar');10 const [request] = await Promise.all([11 page.waitForRequest(/​postman-echo.com/​),12 page.click('text=Send'),13 ]);14 const postData = await readRequestPostData(request);15 await writeFile(join(__dirname, 'data.json'), postData);16 console.log(JSON.parse(stdout));17});

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Using AI Code Generation

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1const { readRequestPostData } = require('@playwright/​test/​lib/​utils/​utils');2(async () => {3 const postData = await readRequestPostData('0x7f000001:8080', 'POST', '/​api');4 console.log(postData);5})();6{7}

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Using AI Code Generation

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1const postData = await page.evaluate(() => {2});3console.log(postData);4### Using `page.on('request')` and `page.on('requestfinished')` to get request body5const { chromium } = require('playwright');6(async () => {7 const browser = await chromium.launch();8 const page = await browser.newPage();9 page.on('request', async (request) => {10 const postData = await request.postData();11 console.log(postData);12 })13 await browser.close();14})();15[MIT](LICENSE)

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firefox browser does not start in playwright

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firefox browser does not start in playwright

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

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