Questions tagged [web-access]

Questions about using Mathematica for accessing web sites and using such functions as URLFetch and URLSave.

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34 views

Web crawler, where access is needed

I want to make a web crawler and download a bunch of files that are located in different directories on the website. Accessing the files need username and password input as well (the website is https:/...
5
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2answers
107 views

How to start an incognito web session?

Is this possible to do with StartWebSession, in either with Chrome or Firefox?
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14 views

WebSessionObject from Process

StartWebSession creates a websession which can be controlled with many commands to automate web stuff. It is limited -- what if one wants to include arguments to ...
2
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1answer
62 views

Using java-script code in Mathematica

I have the following HTML file stored on "C:\local.html": ...
3
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2answers
236 views

How to monitor multiple async image downloads?

I have a few thousand image urls that I want to download asynchronously, how can I do that while monitoring progress? I'm really asking for 5 things: Show dynamic progress in bar Downloads must be ...
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21 views

download all the files (pdf, doc, xls..etc _no photos) of a Facebook group just by putting a corresponding group link

I belong to many groups on facebookand in many of them many files are uploaded daily, it is possible with mathematica to download to my pc in a "group" folder all the files of a particular ...
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31 views

Expanding website file display ---------show files in full format

Many times looking for some material I find websites that seem to use a format that does not allow the file name to be fully visible. You download the file that you think it is and it turns out that ...
5
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2answers
148 views

Curl analog with URLRead/Execute?

I have a working curl command: curl https://myapp.herokuapp.com/doit -F filedata=@path/to/img.jpg How do I write this in the modern way with ...
4
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1answer
68 views

How to send keys to the element in focus with WebExecute

Exploring the WebExecute function, I would like to know how can I send key (or TypeElement) to the element in focus. Here is a toy code using Google. ...
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1answer
52 views

URLDownload(and URLSave, Import) “Error while processing content unencoding”

I'm downloading a file of exactly 1000K-size (https://gitee.com/WolframPaclet1/WolframPacletExtreme1/raw/master/Paclets/MXNetResources-WIN64-12.0.37.paclet.601) with ...
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1answer
72 views

How to use WebExecute to retrieve WebElementObject HTML?

I know that I can use WebExecute to retrieve WebElementObject text, as in this example: ...
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0answers
65 views

429 error when importing webpage

I am interested in checking which of my favorite groceries are on special at which supermarket before going to the shops (to know which items to buy from which supermarket) but every time I try to ...
3
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2answers
160 views

Bug in WebExecute TypeElement with diacritics characters [Solved]

[Solved in 12.1.1] When using WebExecute TypeElement, I get $Failed if I have a diacritics ...
3
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1answer
87 views

Can Delayed FormFunction redirect to itself (with body)

I want a FormFunction to show a history of inputs, by default an empty list. But once the submit is hit, the form should be reloaded with the history shown on top. ...
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45 views

Cannot launch Chrome or Firefox Driver with StartWebSession[]

The Mathematica 12 in my computer cannot launch Chrome or Firefox session correctly. The first error message is ...
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1answer
139 views

Basic API Key authentication not working with URLExecute

I am a newbie with RESTful APIs and have never tried accessing one from inside Mathematica. I am trying to access the Companies House API, in the UK. The following command works fine from the Terminal ...
5
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0answers
173 views

Decompose website into rectangular grid?

I'd like to take an image of a website and decompose it into a rectangular clustering of dominant pixels like this: What I've tried so far There are a few existing webpage segmentation solutions: ...
8
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0answers
169 views

Guide to capturing the complete image of given urls?

I'm trying to use WebImage[] to capture the complete image of a website (yes, it might be very tall). I seem to be having some issues with it: How to attempt to capture a complete image of the ...
3
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0answers
81 views

Make Mathematica aware of private root certificate authority

I have a private root certificate authority and when I use functions like URLRead[] to connect to a local HTTPS endpoint, I have to add ...
4
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2answers
248 views

SSL errors when using URLFetch or URLSave in versions 8 or 9

It seems that with Mathematica 8 and 9 it is not possible anymore to download files from SSL encrypted urls. In my case (Fedora 30) on Mathematica 8 (it has no ...
2
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1answer
352 views

URLSave in Mathematica 10 and 11 on Linux [closed]

It seems that URLSave doesn't work as expected with https links in Mathematica 10.4 on Linux. At least in my case (Fedora 30) for ...
2
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1answer
104 views

Convert Plot to Base64 [closed]

My goal is to get a Base64 string directly from a plot (or any Graphics object) in Mathematica such that, when using a Base64 decoder online, such as this one, I ...
5
votes
1answer
120 views

Using WebExecute to automatically download data

With WebExcute, I have been able to get access to a particular url https://www.hkex.com.hk/eng/sorc/options/statistics_hv_iv.aspx However, in this url, there is a quite a number of stock code that ...
4
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0answers
181 views

Privacy in web-queries [closed]

The question What information is sent to Wolfram Research when loading or working with Mathematica? describes the information sent to Wolfram's servers in routine Mathematica usage (Documentation ...
3
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0answers
133 views

How to use Mathematica in Chrome extension?

Now that the wolfram engine is free (for developers), I'd like to know how to use it within a chrome extension. It's easy to make a chrome extension, which is essentially just a JSON file with some ...
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0answers
74 views

Yahoo groups is going away: how can I download the old messages?

It looks like all the old email messages from my group are stored in web pages with URLs that look like this: ...
10
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1answer
196 views

Mathematica 12: Failure with URLRead

Bug introduced in 12.0 The following HTTP request fails to submit the body under version 12, but works in Mathematica 11: ...
12
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1answer
327 views

How to work with ElasticSearch in Mathematica?

Steps to install and run ElasticSearch: install Java (64-bit): https://www.java.com/en/download/manual.jsp download ElasticSearch (https://www.elastic.co/start) and extract archive in ...
4
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2answers
209 views

Can WebExcute click on a button on a webpage that has been created with Javascript?

In an effort to explore the new WebExecute capabilities in Version 12 I have created a simple algorithm to download some data that are stored on an external server and displayed on a webpage. I am ...
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0answers
85 views

Writing to ElasticSearch [duplicate]

Could someone kindly direct me to suitable documentation, Wolfram or otherwise, to connect Mathematica to an ElasticSearch instance. I don't need anything complicated just sufficient to write a record ...
2
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1answer
130 views

How to extract audio from a Youtube video

Is it possible to extract audio from a Youtube video using Mathematica? I have looked at this post and figured out that it is impossible to download videos with the Youtube API. Are there any possible ...
11
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2answers
1k views

Temporarily simulate being offline programmatically

Today I am running Mathematica from a computer that is permanently connected to our university network. Because of a number of reasons, I am not allowed to disconnect my computer from our network. My ...
7
votes
1answer
799 views

web scraping images

I am trying to load player profile pictures from the following page: https://www.transfermarkt.com/manchester-united/startseite/verein/985/saison_id/2006# I use the following code: ...
5
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1answer
402 views

Mathematica equivalent of a curl snippet

Is there any documentation anywhere on how to convert an invocation of curl into the Mathematica equivalent (using for example ...
1
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1answer
89 views

Unable to use the Import[] function to get the clickable hyperlinks of a page

I can get the hyperlinks of the Google search result of "Wolfram" by using the following code: Import["https://www.google.nl/search?q=Wolfram", "Hyperlinks"] Now ...
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0answers
41 views

How do I import changing/dynamic data on a webpage?

A remote device (sensor) is sending measurements (that I get in JSON format) to a given URL and is sending new measurements (data points) every couple of minutes. I cannot share the URL but the ...
5
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2answers
143 views

“Accept” header in HTTP request for DOI Content Negotiation

I am trying to get the .bib info from a DOI, following the guide here. Basically, I wish to run ...
7
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1answer
217 views

Using URLExecute to login to website

One of my students is doing summer research for a local company to help analyze some of their data. Trouble is, the web interface they provide for downloading the data only allows one to download one ...
2
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0answers
81 views

What could cause an “Uncaught Throw[$Failed,CURLLink`Utilities`Exception] returned to top level.” error message?

I am running a program in Mathematica that uses web browser automation, and is also connected to my email account. The program runs fine for a while, but after a few hours, I end up getting the ...
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0answers
38 views

Verify that a document matches a URL

Writing: Quiet[Length[Import["http://www.africau.edu/images/default/sample.pdf"]]] I get: 2 while writing: ...
2
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0answers
35 views

How to overcome the threshold 500 ExternalLinks for downloading of the WikipediaData?

The command, for instance, WikipediaData["Global warming", "ExternalLinks"] gives me 500 links only, as so as ...
2
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0answers
77 views

How to use EmbedCode with CloudDeploy correctly?

I ran EmbedCode[CloudDeploy[Manipulate[Plot[Sin[x + c], {x, -6, 6}], {c, -1, 1}]]] based on this instruction and obtained the html code for embedding as below:- <...
5
votes
1answer
313 views

How to click a button to upload local file with WebExecute?

A webpage has a "browse" button to open the filesystem to select a file and upload it, in html it looks like this: ...
6
votes
3answers
178 views

Find and load all ResourceFunctions as top level functions?

I would like to be able to use ResourceFunction's as top-level symbols: The reason being that some of them are so useful it would be really great not to have to ...
3
votes
2answers
261 views

Number of line in website [closed]

I want to download the content of the website(contains text) and only a few lines from the content (from a specific number of the line up to the last line minus specific offset). Unfortunately, I do ...
1
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0answers
28 views

WebImageSearch for images of high resolution?

Is there a way to specify a minimal image dimension when using WebImageSearch? Since it costs money I don't want to do a large search and then filter the results. ...
3
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2answers
115 views

WebExecute timeout

There isn't much tuning freedom available in the WebExecute method. If a page takes too long to load you only see a spinner or a blank for CapturePage. Does someone ...
2
votes
1answer
59 views

How can I deal with a 502 error? [closed]

I am working on a program that interfaces with a web API. Mathematica runs perfectly fine for a few hours and then, after a while, will sometimes return: The request to URL https://api.polygon.io/...
2
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1answer
205 views

Deleting missing values from a dataset

I wanted to create a dataset of all UFO sightings in April of 2018. The AssociationThread doesn't want to work, because some of the entries are missing value, what ...
8
votes
1answer
297 views

Scrape AJAX Website with Webdriver

I hope the new Webdriver functionality can help as the normal Import and HTTPRequest don't work. The sites I have found are a ...

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