How to put the text of an article of a URL in a variable?

After trying the curl command in Terminal and working, then I thought the problem was in the text obtained from getTextOf(). I found how to solve it in this topic

prompt = prompt.replace(/(?:\r\n|\r|\n)/g, ' ');

Now it works good. I just need to how put the main title of the note like let aTitle = '# ${aName} - Summary'. But I think I’ll do it with a regular expression

Thank you so much, I learned a lot with you @chrillek @meowky @rkaplan @BLUEFROG

(() => {
	"use strict"
	
	const DTapp = Application("DEVONthink 3");
  	DTapp.includeStandardAdditions = true;
	
	const app = Application.currentApplication();
	app.includeStandardAdditions = true;
	
	
  	
	const userInput = "You are a researcher, make a summary with the first subtitle pointing out the 5 main points addressed, in the second subtitle explain the 5 main terms used, in the third subtitle explain 3 complex concepts in simple terms and in the fourth subtitle give an example in everyday life of how the subject can be applied. The text is as follows: ";
  	const my_api_key = "sk-proj-xxxxx";

	
  	let selection = DTapp.selectedRecords();	
  	selection.forEach(r => {
        let aURL = r.url();
		let markup = DTapp.downloadMarkupFrom(aURL);
		let text = DTapp.getTextOf(markup);
		
		let aName = r.name();
		let thumb = r.thumbnail();
		let aUUID = r.uuid();
		
		let prompt = userInput + text;
		prompt = prompt.replace(/(?:\r\n|\r|\n)/g, ' ');
	

        let command; 
		command = `curl https://api.openai.com/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer ${my_api_key}" \
-d '{
  "model": "gpt-4o-mini",
  "messages": [
    {"role": "system", "content": "You are a helpful assistant"},
    {"role": "user", "content": "${prompt}"}
  ]
}'`
		
				
		let jsonObj = app.doShellScript(command);
		let obj = JSON.parse(jsonObj);
		
		let catalog;
        if (obj && obj.choices && obj.choices.length > 0 && obj.choices[0].message) {
            catalog = obj.choices[0].message.content;
        }
        if (catalog) {
            let newSum = DTapp.createRecordWith({
			name: aName,
			URL: aURL,
			type: "markdown",
			content: catalog,
			thumbnail: thumb
		    });
		 }
				 
	});
	
})();