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We want to build a function that can parse HTML to find specific elements/text in the DOM tree with a callback if the element is there or not.

This can probably be done with other languages, but with a little research, I have come to the following:

1. Fetch HTML through Url

2. Parse the HTML

3. Find specific element in DOM (JSON with rules including all the elements).

4. Call back (true/false) if element is found

(?) This can be solved with a web server, using Node.js, that can receive API calls via HTTP. The server needs an XML parser that will look through the DOM tree to check that the element is matching the rules in the JSON.

(?) Config needs to be quite specific. (Eg. in DOM find div with class ”slider”, in the third slide check for text ”element”).

{

elem: ”div”,

class: ”slider”,

options: { index: 2 }

data: ”element”

}

Every element needs it own callback. let's say the JSON is for 50 elements, 48 returned ok and 2 error. The callback can be once. But instead of sending a bool (true/false), it can send a map.

{

”rule-x”: true,

”rule-y”: false,

”rule-z”: false

}

Furthermore we need to set up a client database (MySQL?) and connect everything to a front-end UI with user logins.

Every user will have their own config with rules (what sites to parse and which elements to find). The callback (if returned with false) needs to be displayed in the interface for every specific user.

Ideally the interface allows users to record data, eg. which url to parse and what elements to look for.

(We will handle the front-end.)

Kỹ năng: HTML, MySQL, node.js, Programming, Phát triển phần mềm

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( 0 nhận xét ) Sweden

Mã Dự Án: #13463428

25 freelancer đang chào giá trung bình kr17192 cho công việc này

seekdeveloper

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fleetways

Kindly advise whether we can propose a node+express based application: Page fetching (3) parsing - a common callback as you suggested (instead of each pattern/rule match) Guess - database will store authenticatio Thêm

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sapotacorp

Hello afflow!. Im a full stack developer, i can help you do this task fast. i have already charged a reasonable price. Please hire me!Thank you!

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webbookstudio

Hello, my name is Michael. I represent Ukrainian based IT-company Webbook Inc that provides services in the IT-sphere for international business. We were carefully reviewing the requirements of the job description, so Thêm

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winmaclin

Hi, We are experts in HTML, JSON, PHP & MySQL development. So, We can definitely help you code your function that can parse HTML to find elements in DOM tree with callback as per your needs with our extensive experi Thêm

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dinhbang19

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themexlx

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espsofttech

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bhaveshkhatarani

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DavidLiu80

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tudiptechnology

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buzzcoder

Hi, I have some questions for you regard to your reqs: 1. with a given url, we just need to find data in that DOM only or find recursively in case this url content has other hyperlink? 2. what is the purpose of ca Thêm

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wartertall

Hello. I would like to do this work for you. I use nodejs for server side and mongodb for save database, but if you like mysql I will use mysql no problem. I have experienced with dom parse and regex to extract so I Thêm

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arifjaunpur

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caroldata

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