AngleSharp
Playwright
AngleSharp | Playwright | |
---|---|---|
15 | 382 | |
5,007 | 61,953 | |
1.0% | 1.7% | |
8.6 | 9.9 | |
26 days ago | 5 days ago | |
C# | TypeScript | |
MIT License | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
AngleSharp
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Migration of a Dynamic Website to a Static Website
Instead, what I ended up doing is utilizing AngleSharp for transforming the existing (dynamic) websites into static files. I've stored them on disk and made them ready to be served statically.
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What do .NET devs use for web scraping these days?
AngleSharp
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School Web scraping
Read and understand the HTML DOM with something like this https://anglesharp.github.io/
- Text editor library/HTML parser options for blogging app
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Powershell/HTML: Apply color to HTML table based on results
Personally, if that script I wrote did need to be used on Core I probably would have compiled AngleSharp, loaded the HTML Parser DLL into the script, and used that.
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C# Web Scraper to check a sent Form
Now, assuming you have to scrape, C# does have two decent scraping libraries: AngleSharp and Html Agility Pack. I personally prefer AngleSharp.
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Tell me your common tasks!
I would love a blog post or even a series of them about scraping local HTML files with either AngleSharp or HTMLAgilityPack.
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How can I grab onto the html class name of a string that contains html, using c#?
If you want a cleaner and modern alternative to HtmlAgilityPack then I'd suggest https://github.com/AngleSharp/AngleSharp
- How to parse HTML in .NET - C# libraries comparison and benchmarks in 2021
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Web scraping is so complicated, i cant specify a class only an attribute
Use anglesharp for parsing html
Playwright
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Modern React testing, part 5: Playwright
Playwright, an end-to-end test runner;
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Typed E2E test IDs
We start with a project that was bootstrapped with npx create-next-app. For the E2E test we use Playwright and set it up as described in the testing guide provided by Next.js.
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Playwright Scraping infinite loading & pagination
Playwright is a powerful tool developed by Microsoft, it allows developers to write reliable end-to-end tests and perform browser automation tasks with ease. What sets Playwright apart is its ability to work seamlessly across multiple browsers (Chrome, Firefox, and WebKit), it provides a consistent and efficient way to interact with web pages, extract data, and automate repetitive tasks. Moreover, it supports various programming languages such as Node.js, Python, Java, and .NET, that’s making it a versatile choice for web scraping projects. Whether you're scraping public data for analysis, building a web crawler, or automating manual workflows, Playwright has you covered.
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Sometimes things simply don't work
The consensus I could gather is either use playwright or use a workaround to solve it in the puppeteer layer. The root cause of the bug is a websocket size limitation on the CDP protocol for chromium.
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The best testing strategies for frontends
With the advent of tools like Puppeteer and now Playwright, end-to-end testing has become much easier and more reliable. For anyone who's used Selenium in the past, you know what I'm talking about. Puppeteer has opened the way in terms of E2E tooling, but Playwright has taken it to the next level and made it easier to await for certain selectors or conditions to be fulfilled (via locators), thus making tests more reliable and less flaky. Also, it's a game changer that it introduced a test-runner - this made the integration between the headless browser and the actual test code much smoother.
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Playwright Web Scraping 2024 - Tutorial
In this tutorial, our main focus will be on Playwright web scraping. So what is Playwright? It’s a handy framework created by Microsoft. It's known for making web interactions more streamlined and works reliably with all the latest browsers like WebKit, Chromium, and Firefox. You can also run tests in headless or headed mode and emulate native mobile environments like Google Chrome for Android and Mobile Safari.
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The best testing setup for frontends, with Playwright and NextJS
// playwright.config.ts import { defineConfig } from "@playwright/test"; /** * See https://playwright.dev/docs/test-configuration. */ export default defineConfig({ testDir: "./src/pages", reporter: "list", use: { baseURL: "http://localhost:5432/", }, timeout: process.env.CI ? 10000 : 4000, // ... more options });
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✍️Testing in Storybook
Issues with Playwright
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Episode 24/14: Angular Query, New Template Syntax
Fast and reliable end-to-end testing for modern web apps | Playwright
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Adding standalone or "one off" scripts to your Playwright suite
This means you cannot place test files outside of this directory, which was brought up as a question on Github some time ago. Initially, I thought it would be nice to add another folder in the repo called "scripts", but Playwright does not allow multiple testDir values.
What are some alternatives?
HtmlAgilityPack - Html Agility Pack (HAP) is a free and open-source HTML parser written in C# to read/write DOM and supports plain XPATH or XSLT. It is a .NET code library that allows you to parse "out of the web" HTML files.
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js
CsQuery - CsQuery is a complete CSS selector engine, HTML parser, and jQuery port for C# and .NET 4.
undetected-chromedriver - Custom Selenium Chromedriver | Zero-Config | Passes ALL bot mitigation systems (like Distil / Imperva/ Datadadome / CloudFlare IUAM)
dotless - .NET Port of the ruby Less CSS lib
TestCafe - A Node.js tool to automate end-to-end web testing.
FluentBootstrap
nightwatch - Integrated end-to-end testing framework written in Node.js and using W3C Webdriver API. Developed at @browserstack
ExCSS - A CSS Parser for .NET. It's BADA55!
Cypress - Fast, easy and reliable testing for anything that runs in a browser.
HtmlSanitizer - Cleans HTML to avoid XSS attacks
playwright-python - Python version of the Playwright testing and automation library.