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oliver9
New Member

Power Automate doesn't detect pattern when trying to scrape website text over several paragraphs, web helper always only lets me select a single source

Hi all, I've been trying to scrape this online textbook from openstax https://openstax.org/books/introduction-philosophy/pages/1-introduction,

I can select the pager element, and I've been trying to extract text from the div and paragraphs individually.
But whenever I move to a new page I have to select a new element.

If I do advanced and change it always changes back to single element whenever I select a new pages divs text.

I know we can download pdf, and epub versions of this, but I would like to have the raw texts though if possible.

 

What am I doing wrong?

1 ACCEPTED SOLUTION

Accepted Solutions
OkanAT
Super User
Super User

Reading your topic back, you've maybe already found that you can use div[Id="main-content"]. To get all content on a page.

 

To get paragraphs on a page, you can use The sections or Para elements on the page. If you inspect the page you can see that sections are made up by sect-xxxx and parapgraphs are made up by para-xxxxx.

 

It's gonna be a little bit advanced but you can loop thru the xxxx'es in Sections and Paragraphs.

 

 

 

 

View solution in original post

7 REPLIES 7
OkanAT
Super User
Super User

Hello,

 

Your selectors are not Dynamic and instead are static. In short: The selectors you declare on page one, won't work on page 2 or page 10. Same goes the other way around. 

 

You have to look for the selector that is the same on each page. Which is: div[Id="main-content"] AND ONLY div[Id="main-content"]

So your UI element within your scrape activity should have this selector.

OkanAT_0-1679312279547.png

 

Good Luck 🙂

 

PS: this selector made me scrape multiple pages on the site you want to scrape.

OkanAT
Super User
Super User

Reading your topic back, you've maybe already found that you can use div[Id="main-content"]. To get all content on a page.

 

To get paragraphs on a page, you can use The sections or Para elements on the page. If you inspect the page you can see that sections are made up by sect-xxxx and parapgraphs are made up by para-xxxxx.

 

It's gonna be a little bit advanced but you can loop thru the xxxx'es in Sections and Paragraphs.

 

 

 

 

Thanks a lot, I'll try with this, I didn't know about the main content tag. I'm optimistic since it worked for you 🙂

hmm, ok, I am not able to do it.
When I try to extract value it always just says single value is that the issue?
Because it only extracts one time, clicks on next and stops

How do I get to that page on your screenshot where I can select the divs? I only  have the advanced settings via the webhelper:

oliver9_0-1679390512128.png

 

OkanAT
Super User
Super User

Hello,

 

If it Extracts one time and it stops, perhaps you don't have any activity after extracting the first page.

 

You can use a Loop in which you can set the counter to the amount of pages it has and increment it by 1.

Within the loop you can {

1. Extract the page activity.

2. Click on next activity

3. Write the extracted value to an Excel/CSV file. }

 

In the end you will have a file with all the extracted values.

ollibolli
New Member

Thank you! Are there tutorials? I don't know how to set a loop and I feel bad for keep coming back to ask you.
How do you get to the window in your screenshot above where I can select the different UI elements?

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