Not able to update a Zoho Project Task Work Hours

Question

In Zoho Projects, I've created a quick Deluge script that is to run whenever a task is closed and take a value from a custom field and edit the "Work Hours" to match that amount.

owners = testResponse.getJson('tasks').getJSON("details").getJSON("owners");
no_of_owners = owners.size();
custom_fields = testResponse.getJson('tasks').getJSON('custom_fields');
proposed_hours = "";
for each  item in custom_fields
{
    if(item.getJson('label_name') == "Proposed Hours")
    {
        proposed_hours = item.getJson("value");
    }
}
info proposed_hours.toLong() / no_of_owners;
value_update = Map();
owner_work = List();
count = 0;
for each owner in owners
{
    owner_map = Map();
    owner_map.put("user_id",owner.getJson('id'));
    calc = proposed_hours.toLong() / no_of_owners;
    owner_map.put("working_hours", calc.concat(""));
    owner_work.add(owner_map);
}
value_update.put("owner_work", owner_work);
info owner_work;
update_response = invokeurl
[
    url :projectsDomainURL + "/portal/" + portalId + "/projects/" + projectId + "/tasks/" + taskId + "/"
    type :POST
    parameters:value_update
    connection:"*********"
];
info update_response;

The Rest API indicates that a json array should be passed in with user_id and working hours (Link to the relevant spec). However this is not changing the values as expected but accepts the request as valid and I'm not sure what I'm missing.

Answer 1

Here is how to specify the work hours parameters:

value_update = Map();
value_update.put("owner_work",{{"user_id":assignee_id.tostring(),"working_hours":"0.5"}});
value_update.put("work_type","work_hours");