Update: I followed the instructions here:

https://tiddlywiki.com/dev/static/How%2520to%2520create%2520plugins%2520in%2520the%2520browser.html

And created a plugin which simply contains:

(function () { alert("Test alert"); })

Everything got packed and saved, and the plugin appears installed. But when 
I reload the alert box doesn't appear. I would have expected the code 
inside an installed plugin to run upon startup. How can I get TW to execute 
my plugin code?

On Tuesday, May 19, 2020 at 7:20:38 AM UTC-7, Flan Mou wrote:

> Yes, for example there is the OpenLibrary API:
>
> https://openlibrary.org/developers/api
>
> I'm fine with interacting with the API, it's just that I'm not sure how to 
> build even a very simple request within TW. I was expecting to be able to 
> create an HTML tiddler, add a <script> tag, and write some Javascript with 
> XMLHttpRequest() within it. But it seems that's not possible. For example I 
> created an HTML Tiddler with:
>
> <script>
> alert("Testing");
> </script>
>
> And that didn't work.
>
> I guess my question is: is there a way to get TW to execute arbitrary 
> Javascript within a tiddler? If not, how do I make that happen? Apologies 
> if this is available in the documentation somewhere but I couldn't find it.
>
>
> On Monday, May 18, 2020 at 11:59:49 PM UTC-7, PMario wrote:
>>
>> Hi, 
>> Is there a public service, where you can GET the info? Without an API 
>> description, it's hard to do.
>> -mario
>>
>> On Tuesday, May 19, 2020 at 6:14:29 AM UTC+2, Flan Mou wrote:
>>>
>>> Goal: to create a plugin(?) where: you type in an ISBN and it does a few 
>>> HTTP GETs to get book information and populates a new tiddler with that 
>>> info.
>>>
>>> I'm pretty new to TiddlyWiki and I've been trying to make my way through 
>>> tiddlywiki.com/dev looking for examples I can base things off. I 
>>> haven't seen anything relevant.
>>>
>>> I'd be happy for any points in useful directions.
>>>
>>> Thanks.
>>>
>>

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