Process multiple CSV files and send the CSV contents by rest api call

Hello, I'm seeking some suggestions for the issue below:
Suppose I have multiple CSV files which including header.
ID,NO,Date
1,200,2020-02-03
...........................
...........................
.........................
How can I process the CSV files so that each line of one CSV file will map to one object and then send N objects to an api by making rest api call?