eth_getUncleCountByBlockNumber

Returns the number of uncles in a block from a block matching the given block number.

Parameters
  1. QUANTITY|TAG - integer of a block number, or the string "latest", "earliest" or "pending", see the default block parameter.
params: [
   '0xe8', // 232
]
Returns

QUANTITY - integer of the number of uncles in this block.

Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockNumber","params":["0xe8"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x1" // 1
}