How to return result from a stored procedure to TASK RETURN_VALUE in snowflake? - snowflake-cloud-data-platform

Question

I would like to return logging and status messages from a stored procedure to the TASK that calls it.
create or replace procedure status_return()
returns string not null
language javascript
as
$$
var result_status = 'The return status and debug information in string format';
return result_status; // Statement returned for info/debug purposes
$$;
I would like to pass the result from stored procedure call status_return() back to the task
-- Create a task that calls the stored procedure every hour
create or replace task call_SP
warehouse = SMALL
schedule = '1 minute'
as
call status_return();
When I execute TASK_HISTORY to view RETURN_VALUE is always empty.
select *
from table(information_schema.task_history(SCHEDULED_TIME_RANGE_START => dateadd(hours, -5, current_timestamp()) ,
TASK_NAME => 'call_sp'));
How can I view the result of a stored procedure in task_history for SUCCESS, FAILURE, or ERRORS?
I have tried creating a task in the following way, but I was unsuccessful and it return with errors.
create or replace task call_SP
warehouse = EDS_SMALL
schedule = '1 minute'
as
call system$set_return_value(call status_return());
Can I use Javascript in Tasks? To store the result of a stored procedure call into a variable and return it back to the TASK result

Answer 1

In order to be able to get a RETURN_VALUE in your TASK_HISTORY you have to set the return_value in your stored procedure using call system$set_return_value().
Examples can be found in snowflake documentation.
This is what it should looks like if you want the return_value field of the task_history to return your result status var when your task is launched :
create or replace procedure status_return()
returns string not null
language javascript
as
$$
var result_status = 'The return status and debug information in string format';
var rv_stmt = snowflake.createStatement({sqlText:`call system$set_return_value('` + result_status + `');`});
var rv_res = rv_stmt .execute(); // Set return_value
return result_status; // Statement returned for info/debug purposes
$$;