I also don't quite know how those test cases would fit in/play with the ones leveraging recorded fixtures off the top of my head. Thank you @mxschmitt and Playwright core team . The 2nd line of the code gets the request url as a string and uses the `startsWith ()` function to return a boolean. By clicking Sign up for GitHub, you agree to our terms of service and @mxschmitt Yes, this is one of the use cases. At the moment I am writing autotests for two projects, I use cypress on one and Playwright on the other, so I involuntarily start comparing these tools, each has pros and cons. to your account. This plugin configures pytest fixtures that provide building blocks you need for end-to-end browser testing. @lifeart Not yet, but, it would be a good feature to add, I'll see if I can add that on the weekend. Since Playwright is a Puppeteer 's successor with a similar API, it can be very native to try out using the exact request interception mechanism. That way I could run the tests against the real back-end first and then if there were failures run against an earlier set of 'safe' mocks. How would request API help with this? The size of the file gets too big when there are static assets (js chunks ). It looks like what you really want is this: https://playwright.dev/docs/auth#reuse-authentication-state. And, then after a successful upload we are asserting all the file names on the . My understanding is that you'd still have to visit the site before being able to use the request API. Was looking for exact same use case and stumbled on this, would be really nice , Any news on this? Removing external calls for static resources ( images & co ) in Component tests. It records any network request (using recordHar), clears up the HAR file to only keep XHR requests (persisting into a new mock.json file), then automatically mocks everything following the mock file for any future runs. Note from maintainers: request interception and response mocking work in Playwright. I use an extended playwright/test and override / add additional . Sorry, I didn't get the chance to try Playwright 1.23 and new APIs yet. And managing cookie jar is not that easy to be honest. One feature of cypress that really shines in the ability to make HttpRequests using the cy.request() function, I use this many times throughout the current system however the most important request is used to setup my randomly generated user application state before I even visit the web-app itself (it makes the request to our webServer which responds with data that is then used for the user-specific localStorage items), this allows me to skip the login screen of my application entirely, saving a lot of time for each test. Figuring out if we can get something out of the box for all the auth scenarios For now what I do is grab all cookies and send it to Got or request promise. @kousenlsn is a way to serve HAR prerecorded 3rd pary domain request? HTTP Authentication Perform HTTP Authentication with browser.newContext ( [options]). What you need to do is first start waiting for the response and then click, so the waitForResponse () can catch the actual response coming as a result of the click. I'm interested in reusing code/test cases for multiple types of tests where possible: integration, e2e, regression, visual, etc. So similar like a) but more like specific on some requests instead of all or a lot of requests. But yes I agree that Playwright is a lot better than Cypress. The first thing I checked was the Playwright Docs for the apiRequestContext.post () section, and found that one of the options I could pass in . We get the request from the browser context: request = context.request. In your test where you have [page.request.post()] as far as I know, it will internally spin up a browser instance because you cant have a [page] without that. Listening to the Network. the login via the request instead of doing it via automation? The HAR format sounded like a potentially practical choice, so I wanted to follow along. It's quite easy, you just do a fetch inside the function. its API response to in the tests? I noticed sometime for getting cookies we have to visit the website and some cookies especially session cookies are not avail till we visit website. cy.request doesn't use Chrome stack either and if we implemented such request API in Node it would suffer from the same problem. App we use: https://github.com/TracerBench/tracerbench, Server setup: customized https://github.com/toutpt/har-express + middleware to run multiple experiments. You basically do a sample run that records what all the responses are, and then every time the test re-runs it automatically serves the responses as recorded there. More input in what use-case you want to cover is of course welcomed, thanks! Your email address will not be published. Besides the perf tests it can do everything youve asked for in your answer. Playwright 1.16 includes the ability to call APIs both independently and using the page browser object (which sends the currently stored cookies for API requests). I implemented Karate support for Playwright [1], and I thought that internally it will always spawn a browser. privacy statement. It is much more convenient to make a subscription on the backend than to make a new subscription on the frontend every time. I use playwright's request: APIRequestContext fixture to implement API tests, and I'd like to log all request/responses, but I cannot figure out how. The first use case is trivial as it's all static resources, and can be handled with simple routes. Multiple File Upload Similarly, here also we are using the setInputFiles command, but instead of one file path, we are passing an array of file paths. This would allow us to determine whether a test failure is due to the UI or due to the backend. 1 I'm working with Playwright. But that makes whole browser unsafe. @DavertMik take a look at what I did, you can do just that now. It's often called web replay. Luckily, Playwright has a built-in method for it - route.fulfill ( [options]). Let us now see how to POST an API request using PW. So I mock api requests and test against them. Your function executed successfully!'. Using the fileChooser.setFiles method we are setting the values of the file input the chooser is associated with. The API may be nice, but can you really do deep assertions on JSON payloads ? Hello guys, in this video, we'll learn how to wait for the API response body and check the status of the API.Reference:https://playwright.dev/docs/api/class-. I use an extended playwright/test and override / add additional . To listen for successful requests from a particular page, use Playwright.Page.on/3 (for :request_finished).:response. Headless execution is supported for. Sign in https://github.com/shirshak55/scrapper-tools/blob/master/src/browserRequest.ts#L33. Save my name, email, and website in this browser for the next time I comment. That means we need to "catch" the outgoing request and return some static data based on it. I tried to record and (roughly) prune HAR snapshots myself, but it was already a couple of MB for a very simple FairyDust test inside a BigApp. Chrome networking stack is different so it has different tls fingerprint. I've updated my example TypeScript project to include these API calls directly using both page and request which looks like: 1. Yeah, you have to call context.cookies on the current status of the context. My usecase is to be able to do regression / performance tests on "production" copy, and "production" version have a list of 3rd party domains requests (scripts, api, images, etc), and it really hard to get it mocked without complex AST modifications of codebase. Extra: Running in AWS using playwright-aws-lambda. How to apply Tags to your Cypress Tests like Smoke, E2E, Facebook Automation: Login, Status Update, Logout, https://github.com/alapanme/Playwright-Automation, How to handle simple and nested iframes in Playwright, Text Input with basic assertions in Playwright, How to handle Javascript Alert, Confirm & Prompt in Playwright, How to execute HTML Document Methods in Playwright, Interesting things that you can do with Playwright Command Line Tools. In past I did use fetch and it works fine on chrome with cors disabled but firefox doesn't work. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Check your inbox or spam folder to confirm your subscription. Single file upload Here we are using the setInputFiles playwright method to select the files for file upload. Already on GitHub? There is no other request field on those classes so it should not cause any problems. I have read the docs about how Playwright can re-use application state but this is not really a viable solution for me because after each test I specifically use new application state. Well occasionally send you account related emails. @mxschmitt perhaps you could call it .fetch() instead of ._request() on the Page & BrowserContext to avoid confusion with browser request events. response.frame () Added in: v1.8 @vdhpieter https://youtu.be/6RwzsDeEj7Y?t=265. The predicate with which I want to capture a response sometimes involves looking at the response body which returns a promise. Here is a typical case: Create a random user on the backend => check some functionality => delete this user on the backend. Playwright is a Node library to automate the Chromium, WebKit and Firefox browsers as well as Electron apps with a single API. Current workflow looks something like that: Playwright opens headless chromium Opens first page with captcha (no data) Solves captcha and redirects to the page with data @aslushnikov oh it might just be so, thank you for the help, request.body return null although there is a body, 'Go Serverless v1.0! Created by Microsoft, playwright makes the process of writing e2e scenarios easier than we've ever imagined. just wondering why you did local resp_body = string.sub(ngx.arg[1], 1, 1000) instead of local resp_body = string.sub(ngx.arg[1], 1, -1) or perhaps local resp_body = ngx.arg[1] for that matter?. The two requests are connected by redirectedFrom () and redirectedTo () methods. 2. It comes with a bunch of useful fixtures and methods for engineering convenience. My guess is that it is merely a wrapper over the Node http request object [2], in which case do you really need Cypress ? The event target is a Playwright.Request. On any website that serves up images, makes XMLHttpRequests, or fetches content in some other way, you can see those requests (and their responses) in the Network tab of your browser's DevTools. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Playwright is a framework for Web Testing and Automation. @yury-s @mxschmitt @pavelfeldman Any progress updates on this? I'm assessing moving from Cypress and Selenium, part of which is looking for automatic generation of fixtures/mocks. The following code block uses the context of the current session/test, and creates a route, that watches all the requests. Ive updated my example TypeScript project to include these API calls directly using both page and request which looks like: Its nice to be able to remove another dependency from my e2e tests and still allow calling APIs using a nice API and reusing the existing objects that Playwright provides. It will be great to have ability to record all domains requests per page, and be able to run playwright with prerecordered HAR, to get 0 "external requests", because all (local and 3rd party) requests will be served from prerecorded HAR. We currently evaluate this feature and need some input to clarify what's needed here. IDK if everybody want the same thing. a) recording the traffic of an application and then using e.g. cors issue (sometime even have to disable security feature) etc. Then the response is returned. Do you automate e.g. Your email address will not be published. But you are right cy will also not work. Playwright API can be used in JavaScript & TypeScript, Python, C# and, Java. I don't want humans to end up with doing work to make the captured files usable as fixtures after each record. Sorry for the ping folks! It's cross-platform, resilient, has an amazing set of tools like trace viewer, inspector, codegen and so on. I was looking for a way to use the HAS file to mock the requests. Many websites changes cookies with every request and this causes problem tbh. its API response to in the tests? Are we supposed to listen to the requestfailed event and match the urlFilter, to decide wheter to fail the test ? Are you depending on making the requests in the browser? I currently use Cypress for my automation testing framework, however I am toying with the idea of moving over to Playwright. Yes, exactly @JoelEinbinder. 'use strict'; const playwright = require('playwright-aws-lambda'); module.exports.pltest = async event => { let browser = null; try { const browser = await playwright.launchchromium(); const context = await browser.newcontext(); const page = await context.newpage(); page.on('request', request=> { let url = request.url(); let body = It can be a callback that takes a request and returns true or false. Have a question about this project? It enables cross-browser web automation that is ever-green, capable, reliable and fast. https://stackoverflow.com/a/69551330/143475, https://twitter.com/ptrthomas/status/1307678474627244032, https://nodejs.org/en/knowledge/HTTP/clients/how-to-create-a-HTTP-request/, https://github.com/elaichenkov/odottaa#installation. See here: https://playwright.dev/docs/next/api-testing. I am continually blown away by how Playwright continues getting more and more awesome , The hello world example works, but I personally am not a fan of using a browser-based framework to do UI testing. This is what I wanted to do, launch a post request inside the test. This is one of the most convenient things for cypress, despite the limitations. Next when I want to rerun the test without updating the mocks and instead of doing real API call, it read the file and return responses. This shouldn't be a problem since you can just do: There are still some limitations related to the Node.js HTTP parser, so going with playwright may be your best bet in some use cases. Features: If I have already written a test that checks authorization on the frontend, then for the following tests that require authorization, there is no need to perform authorization on the frontend, it is much more efficient and faster to register accounts and perform authorization on the backend. Closing since we're releasing it with v1.16. Unexpected network call will happen when a new feature is added to the code tested with Playwright. Cookies can change between request. And I can't have a full environment for testing. I have tried tough cookie to make jar but till today I have not been able to use it successfully with got (another node js client I prefer). And, then after a successful upload we are asserting all the file names on the success page. I'd really like to see playwright be able to send requests without all these workarounds. Would it be possible to detect that we are retrying a test and only configure page.routeFromHAR if this is the case? Also would be great if the requested feature would work with other runners, not just @playwright/test. 2. When the server responds with a redirect, Playwright creates a new Request object. In this article, we will discuss how we can upload single/multiple files in playwright. Or I might want to record and run a predefined set of requests. Notice below that we need to pass some body as part of POST request (unlike a GET request) . If your API is on a different host or port than your app, set urlPrefix: But when deployed on AWS Lambda the body is null although locally the output is: The text was updated successfully, but these errors were encountered: @uriya2 it looks like website changes its behaviors based on the IP of the browser; AWS IPs are known to be treated differently. https://playwright.dev/docs/auth#reuse-authentication-state, https://playwright.dev/python/docs/cli#preserve-authenticated-state, https://github.com/shirshak55/scrapper-tools/blob/master/src/browserRequest.ts#L33, feat(fetch): support form data and json encodings, feat(fetch): set content-length header if post data is present, [Question]Playwrigth: page.content Execution context was destroyed, most likely because of a navigation, feat(fetch): support options in playwright._newRequest, feat(fetch): send Playwright as default user-agent for global fetch, feat(fetch): support ignoreHTTPSErrors option, feat(fetch): store cookies between requests, fix(fetch): use data, form and multipart for different post data, browser(webkit): support set-cookie in intercepted response(SOUP), fix(interception): make set-cookie work in chromium, browser(webkit): set-cookie from intercepted response(CURL), browser(webkit): handle set-cookie from intercepted request (Cocoa), browser(webkit): respect first party url in intercepted set-cookie (SOUP), browser(webkit): align set-cookie handling on mac with other platforms, chore(fetch): unprefix _request and _newRequest, fix(fetch): do not allow to call get/post with request, feat(fetch): accept numeric and bool params, fix(fetch): correctly return empty response body, feat(fetch): add helper methods for put, patch, head, delete, docs(fetch): add API testing guide with example, feat(fetch): log fetch requests/responses to pw:api stream, https://playwright.dev/docs/next/api-testing. To install Playwright, the plugin, and the browsers to test on, run: pip install playwright pytest-playwright python -m playwright install. A Software Quality Site by Alister B Scott, Selecting hard to identify elements with Playwright, Five reasons why Playwright is better than Cypress. 2. One feature of cypress that really shines in the ability to make HttpRequests using the cy.request() function, I use this many times throughout the current system however the most important request is used to setup my randomly generated user application state before I . The read-only body property of the Request interface contains a ReadableStream with the body contents that have been added to the request. Browser: First thing we need to run tests is to launch a browser.The playwright . Another use case that someone may have mentioned, but I didn't see in a quick scan, is that it allows you to test your app against a non-idempotent api call without having to do clean up afterwards. The simplest example of a route handler is a function that returns an object: Now whenever your app makes a GET request to /api/movies, Mirage will respond with this data. Have a question about this project? @yury-s tbh no. Please consider going through all the sections to better understand the solutions. Well, I ended up creating a lib if anyone ends up needing this while we don't have an inside solution at Playwright itself. Playwright 1.16 includes the ability to call APIs both independently and using the page browser object (which sends the currently stored cookies for API requests). We'll also learn about Wordsworth's favorite flower - lesser celandine. Well occasionally send you account related emails. A QA by profession and a Coder by passion. Run the tests in "record" mode to record the network traffic, Have the tests fail in "replay" mode if a test makes any unexpected network call as, A way to record traffic used in the tests, maybe, I suspect recording would need to be tied to running the tests against the live environment regardless, so maybe running the tests with a flag as. Hopefully that helps, despite me not being totally familiar with Playwright yet. I can see the request response in chrome developer tools network tab while making the program. Am still unsure how to handle aborted requests for URLs that match the urlFilter but aren't in the HAR itself. About which of the following cases is this issue, since a few different feature requests are mentioned? Search: Puppeteer Intercept Request Response. Playwright seemed to me a much more flexible tool and I like it more, but at the same time it is more convenient to work with the backend in cypress because of cy.request. This one is more complex: We log in into BigApp with a test account. A that completes when the json body is parsed, yielding a representation of response body. Any requests that a page does, including XHRs and fetch requests, can be tracked, modified and handled. In firefox we can't even disable cors which is problem in my opinion, @shirshak55 thanks for your reply, still trying to better understand your requirements. Profanity is a socially offensive use of language, which may also be called cursing, cussing, swearing, obscenities, expletives or vulgarism.Accordingly, profanity is language use that is sometimes deemed impolite, rude, indecent, or culturally offensive; in certain religions, it constitutes sin.It can show a debasement of someone or something, or be considered an expression of strong feeling . easily as it's a JSON file. test ('get respons variable form post in Playwright', async ( { request }) => { const responsMy= await request.post (`/repos/$ {USER}/$ {REPO}/issues`, { data: { title: ' [Bug] report 1 .