load large data in REST API - ruby on rails

I am new to Ruby on Rails. I am using PostgreSQL database with Ruby and Rails 3.2.13. We already created 200K rows of records in PostgreSQL database. I need to send the same 200K records to another standalone windows application.I created a ROR REST API for this purpose. Currently the REST API takes long time to process the data and gets time out after 3 mins.

I am sending 1000 records at a time so that the API will send 1 - 1000 then 1001 - 2000 and so on. This is avoiding the time out. Is this a good approach in handling bulk data.

Do ROR have any build in function to handle this type of operation. Please help me.

Thanks