react-table row selection with custom field instead of index

I'm using the react-table package. I made a simple table with row selection. The problem is: The row selection result is an object with indexes:

{
 0: true,
 1: true,
 ...
}

But I want to be the primary key of my data like this:

{
  EXoxMjyd4leYABdpuy8m: true,
  2gXlClA38AU8sSM5jnZ7: true,
  ...
}

Code example

In the documentation, I can't find a configuration where I can set the selection key. The question is, how can I achieve the second example?

You need to overwrite the table option getRowId.

Example:

const getRowId = (row, relativeIndex, parent) => {
   // In row object you have access to data. 
   // You can choose parameter. In this example I used uniqueId
   return parent ? [parent.id, row.uniqueId].join('.') : row.uniqueId;
}

Here is live example: