Connect and perform READ/WRITE operation on OTG Device (Pendrive) in IONIC App


We want to get data from an OTG Device (Pendrive) in our IONIC App and send that data to server or to in email the data. Now we are just able connect the device to an android mobile, but it is not showing in app. Where as External SDcard is working fine, we can see SDCard data in ionic app and also use that data for further activities.

Please guide us how to connect OTG Pendrive to IONIC app and use data in it for app.