Avoid double query on the same table

I have two queries which are doing basically the same thing, but have different grouping, the first query (query 1) is used to populate a chart, and the second to populate a table.

Query 1:

SELECT key_id
       ,sum(salary)
       ,sum(bonus)
       ,created_at
FROM table
WHERE emp_id = 1
GROUP BY key_id, created_at

Query 2:

SELECT key_id
       ,sum(salary)
       ,sum(bonus)
       ,count(*) OVER() AS full_count
FROM table
WHERE emp_id = 1
GROUP BY key_id

I have created a function that returns those two queries in a json format, chart: [...], table: [...]. The problem is that I need to query the same table twice, because of my grouping. Is there any way of dealing with this situations?