Asana API + Zapier | Add a task to multiple projects via Batch API

zapier-asana-batch-add-to-multiple-projects.js

// get taskName from the custom fields above
var taskID = inputData.taskID;
// add the task to multiple projects
// notes: https://forum.asana.com/t/add-a-task-to-multiple-projects-via-api/160035/7
let body = {
	"data": {
		"actions": [
			{
				"method": "POST",
				"relative_path": "/tasks/" + taskID + "/addProject",
				"data": {
					"project": "123456" // FS:CRM project
				}
			},
			{
				"method": "POST",
				"relative_path": "/tasks/" + taskID + "/addProject",
				"data": {
					"project": "78910" // FS:CRM 2 project
				}
			}
		]
	}
};
// utilize the Batch API
const res = await fetch('https://app.asana.com/api/1.0/batch', {
	method: 'POST',
	headers: {
		'Authorization': 'Bearer 0/abc1234'
	},
	body: JSON.stringify(body)
});
const data = await res.json();
output = { data: data };