scraper
go-plugin
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scraper | go-plugin | |
---|---|---|
12 | 30 | |
98 | 4,911 | |
- | 2.1% | |
0.0 | 6.7 | |
about 1 year ago | 8 days ago | |
TypeScript | Go | |
MIT License | Mozilla Public 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.
scraper
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Most Used JavaScript Libraries (percentage) - June 2022 [OC]
Additional info and source code for generating the dataset, summarizing it and rendering the chart are available at https://github.com/get-set-fetch/scraper/tree/main/datasets/javascript-libs-from-top-1mm-sites
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How to collaborate on web scraping?
Store the scrape progress (to-be-scraped / in-progress / scraped / in-error URLs) in a database shared by all participants and scrape in parallel with as many machines as the db load permits. Got a connection timeout / IP is blocked on one machine ? Update the scrape status for the corresponding URL and let another machine retry it. https://github.com/get-set-fetch/scraper (written in typescript) follows this idea. Using Terraform from a simple config file you can adjust the number of scraper instances to be deployed in cloud at startup and during the scraping process. In benchmarks a PostgreSQL server running on a DigitalOcean vm with 4vCPU, 8GB memory allows for ~2000 URLs to be scraped per second (synthetic data, no external traffic). From my own experience this is almost never the bottleneck. Obeying robots.txt crawl-delay will surely put you under this limit. Disclaimer: I'm the npm package author.
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How to serve scrapped data?
Written in typescript https://github.com/get-set-fetch/scraper stores scraped content directly in a database (sqlite, mysql, postgresql). Each URL represents a Resource. You can implement your own IResourceStorage and define the exact db columns you need.
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How to scrape entire blogs with content?
You can use https://github.com/get-set-fetch/scraper with a custom plugin based on the mozilla/readability as detailed in https://getsetfetch.org/node/custom-plugins.html (extracting news article content). I think it's a close match to your use case.
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Web Scraping 101 with Python
I'm using this exact strategy to scrape content directly from DOM using APIs like document.querySelectorAll. You can use the same code in both headless browser clients like Puppeteer or Playwright and DOM clients like cheerio or jsdom (assuming you have a wrapper over document API). Depending on the way a web page was fetched (opened in a browser tab or fetched via nodejs http/https requests), ExtractHtmlContentPlugin, ExtractUrlsPlugin use different DOM wrappers (native, cheerio, jsdom) to scrape the content.
[1] https://github.com/get-set-fetch/scraper/blob/main/src/plugi...
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What is your “I don't care if this succeeds” project?
https://github.com/get-set-fetch/scraper - I've been working (intermittently :) ) on a nodejs or browser extension scraper for the last 3 years, see the other projects under the get-set-fetch umbrella. Putting a lot more effort lately as I really want to do those Alexa top 1 million analysis like top js libraries, certificate authorities and so on. A few weeks back I've posted on Show:HN as you can do basic/intermediate? scraping with it.
Not capable of handling 1 mil+ pages as it still limited to puppeteer or playwright. Working on adding cheerio/jsdom support right now.
go-plugin
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Show HN: Togomak – declarative pipeline orchestrator based on HCL and Terraform
I am looking forward to a mix of both - I am hoping to add a concept called "operator" which would be a go-plugin [1], just like terraform providers, but build backends. So, someone would be able to, say, write a Slack plugin (in Go, or anything over RPC) which sends a message once a build is complete - like Jenkins/GitHub actions, or just scripts that we can reuse like GitLab CI through `modules`.
Perhaps a new registry where we can push custom modules and providers (operators in this case), I'm curious to know about if we have any existing implementations we could reuse for the registry.
- Show HN: Clace – Platform for secure internal web applications
- Wazero: Zero dependency WebAssembly runtime written in Go
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referencing packages on the internet and using go plugin
I'd recommend looking into a different approach for plugins such as hashicorp/go-plugin (which uses multiple process PIDs and RPC communication between them) or traefik/yaegi (which implements a Go-compatible scripting language that can be interpreted at runtime and which still supports most Go modules).
- Can Go dynamically load library module at runtime?
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Binary packages alternative
You'll never fully protect your code from someone who's dead-set on reverse-engineering it, however, you can use https://github.com/hashicorp/go-plugin or a similar RPC technique, which will let you ship binary plugins and will also be less fragile and janky compared to something made with `-buildmode=plugin`.
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How would you guys support plugins in a Go app? (or any other compiled language for that matter)
The plugin system that hashicorp uses for all their projects works very well. It's essentially a local RPC implementation. https://github.com/hashicorp/go-plugin
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Change go code behaviour at runtime
The leader is almost for certain https://github.com/hashicorp/go-plugin which uses RPC. This prevents some of the binary compatibility issues from the standard library option, operating system issues from the standard library option, and it is in use by lots of large projects from Terraform to Packer, Nomad, and Vault.
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Is the documentation for making non-go plugins in the go-plugin repo outdated?
can you try older go-plugin versions? The only major change in v1.4.4 was a bugfix for automtls. https://github.com/hashicorp/go-plugin/blob/master/CHANGELOG.md
What are some alternatives?
puppeteer-cluster - Puppeteer Pool, run a cluster of instances in parallel
wasmer - 🚀 The leading Wasm Runtime supporting WASIX, WASI and Emscripten
playwright-recaptcha-solver - ReCaptcha V2 solver for Playwright
playwright-python - Python version of the Playwright testing and automation library.
OS-NVR - OS-NVR is a lightweight extensible CCTV system. Mirror of Codeberg.
pyppeteer - Headless chrome/chromium automation library (unofficial port of puppeteer)
Twitch-Drops-Bot - A Node.js bot that will automatically watch Twitch streams and claim drop rewards.
go-plugin-benchmark - Benchmark comparing the go plugin package to other plugin implementations
vopono - Run applications through VPN tunnels with temporary network namespaces
listudy - Listudy - chess training server
rust - Empowering everyone to build reliable and efficient software.