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I have String values stored in a databin. I want users to add values to the databin through webform at datadrop.wolframcloud.com or via the link created by evaluating:

(* 1 *) bin = Databin["GpqwBQQJ"]["WebForm"]

I then want to CloudDeploy a WordCloud that takes the updated values of the databin and displays a WordCloud like this:

(* 2 *) CloudDeploy[WordCloud[Values[Databin["GpqwBQQJ"]]]]

It will only display Strings that were in the Databin at the time I evaluated line 2, and generated a new url. Any subsequent additions to the databin do not result in a new WordCloud when I refresh the page.

I read this post: CloudDeploy a Manipulate... and I tried setting "Evaluate" permissions, but no luck. I have a hunch that this user was on to a similar problem, but the post lacks enough code to help me.

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I would try something like below:

  • 2nd argument "sameURLtest" of CloudDeploy will deploy to the same URL every time you redeploy, so you do not create a plethora of junk test deployments with different randomly generated URLs.

  • Delayed will force any new reload of URL to rerun the code: access the data bin and regenerate new WordCloud

  • Rasterize converts WordCloud to an image before deployment and allows to control image quality. This helps to display WordCloud better on the web. Check out also ImageResolution option.

I hope this helps, let me know if this works for you.

CloudDeploy[
    Delayed[
        Rasterize[
            WordCloud[Values[Databin["GpqwBQQJ"]]],
        ImageSize->500]
    ],
"sameURLtest",
Permissions->"Public"]

Basically Delayed does the trick. There is a nice related workflow that shows how Delayed works at the very end:

http://reference.wolfram.com/language/workflow/SetUpAWebGallery.html

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  • $\begingroup$ Fantastic! This works beautifully. Thank you =) $\endgroup$ – Matt Green Sep 11 at 14:07

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