scraperjs | A complete and versatile web scraper | Reactive Programming library

 by   ruipgil JavaScript Version: 1.2.0 License: MIT

kandi X-RAY | scraperjs Summary

kandi X-RAY | scraperjs Summary

scraperjs is a JavaScript library typically used in Programming Style, Reactive Programming, Nodejs applications. scraperjs has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i scraperjs' or download it from GitHub, npm.

Scraperjs uses promises whenever possible. So, the scrapers should be used with the ScraperPromise. By creating a scraper. The following promises can be made over it, they all return a scraper promise,. All callback functions receive as their last parameter a utils object, with it the parameters of an url from a router can be accessed. Also the chain can be stopped. The promise chain is fired with the same sequence it was declared, with the exception of the promises get and request that fire the chain when they've received a valid response, and the promises done and catch, which were explained above. You can also waterfall values between promises by returning them (with the exception of the promise timeout, that will always return undefined) and it can be access through utils.lastReturn.
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            kandi-support Support

              scraperjs has a medium active ecosystem.
              It has 3675 star(s) with 202 fork(s). There are 94 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 24 open issues and 43 have been closed. On average issues are closed in 135 days. There are 3 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of scraperjs is 1.2.0

            kandi-Quality Quality

              scraperjs has 0 bugs and 0 code smells.

            kandi-Security Security

              scraperjs has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              scraperjs code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              scraperjs is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              scraperjs releases are not available. You will need to build from source code and install.
              Deployable package is available in npm.
              Installation instructions, examples and code snippets are available.
              scraperjs saves you 15 person hours of effort in developing the same functionality from scratch.
              It has 43 lines of code, 0 functions and 25 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            scraperjs Key Features

            No Key Features are available at this moment for scraperjs.

            scraperjs Examples and Code Snippets

            No Code Snippets are available at this moment for scraperjs.

            Community Discussions

            QUESTION

            Asynchronous function got jammed when used inside while loop (scraperjs)
            Asked 2017-Oct-28 at 03:46

            I tried to make a scraper using ruipgil/scraperjs function that is asynchronous. But when I put it inside a loop, it got jammed and won't work. I'm new to Node and the idea of asynchronous programming so please bear with me.

            So, I have this code:

            ...

            ANSWER

            Answered 2017-Oct-28 at 02:40

            You could try using recursion so that it doesn't get stuck in that while loop?

            Source https://stackoverflow.com/questions/46985676

            QUESTION

            Getting 'undefined' when passing an array through Express res.render function
            Asked 2017-Sep-05 at 17:38

            My first attempt at a basic node app.

            If I test run this file (> node index.js) with console.log(eventsArray) in it instead, the array successfully prints out data from the scraper module in the command window, so my scraper module is working.

            And if I set eventsArray = ['this','is,'a','test','array']; in index.js as a test, then these strings do show up on homepage like I want after running the app with Express, so Express + Jade template are working (no need to include my ejs template here since it's working).

            The problem: If I try to run the app as shown below (> node index.js), eventsArray appears to be 'undefined' when it's passed into the res.render function, so nothing shows up on localhost:3000 (homepage)

            index.js:

            ...

            ANSWER

            Answered 2017-Sep-05 at 12:53

            Your getEvents returns nothing, besides of this scraperjs.StaticScraper.create is async function it returns a promise.

            You should return async result from getEvents:

            Source https://stackoverflow.com/questions/46055444

            QUESTION

            Trying to run a script with Express on localhost:3000
            Asked 2017-Sep-02 at 14:37

            Stuck on my first attempt at a basic app. Scraper.js scrapes a URL and writes the returned array to the document obj when run alone in console, so that part works. Now all I want is an Express server to run the script whenever I open localhost:3000 but not sure how to do so.

            ...

            ANSWER

            Answered 2017-Sep-01 at 23:34

            Here is a one that i've coded with promises, and also using a global variable which is daNews

            Source https://stackoverflow.com/questions/46008828

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install scraperjs

            Scraperjs exposes two different scrapers,.
            a StaticScraper, that is light fast and with a low footprint, however it doesn't allow for more complex situations, like scraping dynamic content.
            a DynamicScraper, that is a bit more heavy, but allows you to scrape dynamic content, like in the browser console. both scrapers expose a very similar API, with some minor differences when it comes to scraping.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

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            Install
          • npm

            npm i scraperjs

          • CLONE
          • HTTPS

            https://github.com/ruipgil/scraperjs.git

          • CLI

            gh repo clone ruipgil/scraperjs

          • sshUrl

            git@github.com:ruipgil/scraperjs.git

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