I have a rest endpoint developed in spring. it consumes a multi part request with a string as one part(meta) and a two dimensional byte array(documents) as a second part. I was able to push the data using code.
but I want to test the rest endpoint using postman

I have tried with sending the request part key as

1. documents[0] - file ,documents[1](https://i.stack.imgur.com/k04zB.png) - file [![enter image description here](https://i.stack.imgur.com/k04zB.png)](https://i.stack.imgur.com/k04zB.png)
2. documents - multiple files
3. documents [ ] - files
4. specifically added the content-type as multi-part form data
5. specifically added content-type for each key as well.
the above approaches didn't work.

[![enter image description here](https://i.stack.imgur.com/6NK7m.png)](https://i.stack.imgur.com/6NK7m.png)
can someone suggest me on how to send a two dimensional byte array through postman to spring rest endpoint.