Append to Existing Microsoft Todo List

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Ethan, see if this helps get you there. I wrote a script kind of like this before, but that took a dedicated folder (list) variable. Here’s a modification that parses the list name from the draft as you described — but I don’t have my API key handy to try it out, so this looks right but it’s untested.

let api = "YOUR_API_KEY";

let firstLine = draft.processTemplate("[[line|1]]"),
	splitLine = firstLine.split("@"),
	current = splitLine[0].trim(),
	folder = splitLine[1] ? splitLine[1].trim() : "";

if (!folder) {
	alert("Folder not provided in the draft");
	context.fail();
} else {
	let req = new HTTP(),
		result = req.request({
			encoding: "json",
			method: "POST",
			data: {
				title: current,
			},
			headers: {
				"Content-type": "application/json; charset=UTF-8",
				"Authorization": `Bearer ${api}`,
			},
			url: `https://graph.microsoft.com/v1.0/me/todo/lists/${folder}/tasks`,
		});

	if (result.success) {
		alert(result.responseText);
	} else {
		alert(`Error: ${result.statusCode} - ${result.error}`);
	}
}

Good luck!