scrape-it

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> A Node.js scraper for humans.

----

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📌 Try it now | Documentation
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:cloud: Installation

``sh


Using npm

npm install --save scrape-it

Using yarn

yarn add scrape-it
`


:bulb: ProTip: You can install the cli version of this module by running npm install --global scrape-it-cli (or yarn global add scrape-it-cli).

FAQ


Here are some frequent questions and their answers.

$3


scrape-it has only a simple request module for making requests. That means you cannot directly parse ajax pages with it, but in general you will have those scenarios:


1. The ajax response is in JSON format. In this case, you can make the request directly, without needing a scraping library.
2. The ajax response gives you HTML back. Instead of calling the main website (e.g. example.com), pass to scrape-it the ajax url (e.g. example.com/api/that-endpoint) and you will you will be able to parse the response
3. The ajax request is so complicated that you don't want to reverse-engineer it. In this case, use a headless browser (e.g. Google Chrome, Electron, PhantomJS) to load the content and then use the .scrapeHTML method from scrape it once you get the HTML loaded on the page.

$3


There is no fancy way to crawl pages with scrape-it. For simple scenarios, you can parse the list of urls from the initial page and then, using Promises, parse each page. Also, you can use a different crawler to download the website and then use the .scrapeHTML method to scrape the local files.

$3


Use the .scrapeHTML to parse the HTML read from the local files using fs.readFile.




:clipboard: Example

`js
const scrapeIt = require("scrape-it")

// Promise interface
scrapeIt("https://ionicabizau.net", {
title: ".header h1"
, desc: ".header h2"
, avatar: {
selector: ".header img"
, attr: "src"
}
}).then(({ data, status }) => {
console.log(Status Code: ${status})
console.log(data)
});


// Async-Await
(async () => {
const { data } = await scrapeIt("https://ionicabizau.net", {
// Fetch the articles
articles: {
listItem: ".article"
, data: {

// Get the article date and convert it into a Date object
createdAt: {
selector: ".date"
, convert: x => new Date(x)
}

// Get the title
, title: "a.article-title"

// Nested list
, tags: {
listItem: ".tags > span"
}

// Get the content
, content: {
selector: ".article-content"
, how: "html"
}

// Get attribute value of root listItem by omitting the selector
, classes: {
attr: "class"
}
}
}

// Fetch the blog pages
, pages: {
listItem: "li.page"
, name: "pages"
, data: {
title: "a"
, url: {
selector: "a"
, attr: "href"
}
}
}

// Fetch some other data from the page
, title: ".header h1"
, desc: ".header h2"
, avatar: {
selector: ".header img"
, attr: "src"
}
})
console.log(data)
// { articles:
// [ { createdAt: Mon Mar 14 2016 00:00:00 GMT+0200 (EET),
// title: 'Pi Day, Raspberry Pi and Command Line',
// tags: [Object],
// content: '

Everyone knows (or should know)...a" alt="">

\n',
// classes: [Object] },
// { createdAt: Thu Feb 18 2016 00:00:00 GMT+0200 (EET),
// title: 'How I ported Memory Blocks to modern web',
// tags: [Object],
// content: '

Playing computer games is a lot of fun. ...',
// classes: [Object] },
// { createdAt: Mon Nov 02 2015 00:00:00 GMT+0200 (EET),
// title: 'How to convert JSON to Markdown using json2md',
// tags: [Object],
// content: '

I love and ...',
// classes: [Object] } ],
// pages:
// [ { title: 'Blog', url: '/' },
// { title: 'About', url: '/about' },
// { title: 'FAQ', url: '/faq' },
// { title: 'Training', url: '/training' },
// { title: 'Contact', url: '/contact' } ],
// title: 'Ionică Bizău',
// desc: 'Web Developer, Linux geek and Musician',
// avatar: '/images/logo.png' }
})()
`

:memo: Documentation




$3

A scraping module for humans.

#### Params

- String|Object url: The page url or request options.
- Object opts: The options passed to scrapeHTML method.
- Function cb: The callback function.

#### Return
- Promise A promise object resolving with:
- data (Object): The scraped data.
- $ (Function): The Cheeerio function. This may be handy to do some other manipulation on the DOM, if needed.
- response (Object): The response object.
- body (String): The raw body as a string.

$3

Scrapes the data in the provided element.

For the format of the selector, please refer to the Selectors section of the Cheerio library

#### Params

- Cheerio $: The input element.
- Object opts: An object containing the scraping information.
If you want to scrape a list, you have to use the listItem selector:

- listItem (String): The list item selector.
- data (Object): The fields to include in the list objects:
- (Object|String): The selector or an object containing:
- selector (String): The selector.
- convert (Function): An optional function to change the value.
- how (Function|String): A function or function name to access the
value.
- attr (String): If provided, the value will be taken based on
the attribute name.
- trimValue (Boolean): If false, the value will not be trimmed
(default: true).
- closest (String): If provided, returns the first ancestor of
the given element.
- eq (Number): If provided, it will select the nth element.
- texteq (Number): If provided, it will select the nth direct text child.
Deep text child selection is not possible yet.
Overwrites the how key.
- listItem (Object): An object, keeping the recursive schema of
the listItem object. This can be used to create nested lists.

Example:
`js
{
articles: {
listItem: ".article"
, data: {
createdAt: {
selector: ".date"
, convert: x => new Date(x)
}
, title: "a.article-title"
, tags: {
listItem: ".tags > span"
}
, content: {
selector: ".article-content"
, how: "html"
}
, traverseOtherNode: {
selector: ".upperNode"
, closest: "div"
, convert: x => x.length
}
}
}
}
`

If you want to collect specific data from the page, just use the same
schema used for the data field.

Example:
`js
{
title: ".header h1"
, desc: ".header h2"
, avatar: {
selector: ".header img"
, attr: "src"
}
}
`

#### Return
- Object The scraped data.

:question: Get Help

There are few ways to get help:

1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
2. For bug reports and feature requests, open issues. :bug:
3. For direct and quick help, you can use Codementor. :rocket:




:yum: How to contribute

Have an idea? Found a bug? See [how to contribute][contributing].

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:scroll: License

[MIT][license] © [Ionică Bizău][website]

[license]: /LICENSE
[website]: https://ionicabizau.net
[contributing]: /CONTRIBUTING.md
[docs]: /DOCUMENTATION.md
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