Using Repository API is there any way we can Append Data to an File in pegacloudfilestorage.

Here is my detailed requirement, please guide if anyone has already cracked this ?

1. We need to write an JSON output file by Iterating through a PageList and on Every Iteration I need to append to an existing File in a new Line.

Lets say we have a FileOutputList in which we have 3 Objects with Data as only two properties (CustomerId(Key) and CustName so we wanted the below Output

CustomerID                                                                  CustName

123456                                                                         TesUser1

345678                                                                         TestUser2

567890                                                                         TestUser3

This is just a sample and in actual requirement we have a huge data in file so its not fare to load the complete stream of data to clipboard and append rather i am looking for option to just Open the file using filepath and Append with a new line every time I iterate through my Pagelist.

Thank you.