[V7] Manual Dropbox Backup?

you can modify the frappe.call as per your need.

frappe.call({
	method: "frappe.integrations.doctype.dropbox_backup.dropbox_backup.take_backups_dropbox",
	freeze: true,
	freeze_message: __("Taking backup"),
	callback: function(r){
		if(!r.exc) {
			frappe.msgprint(__("Backup taken successfully"));
		} else {
			frappe.msgprint(__("Error while taking backup. <br /> " + r.exc));
		}
	}
});

I’ve modified the other post accordingly [SOLVED] How to change the frequency of Backup in Dropbox - #2 by revant_one