eth_getUncleCountByBlockHash

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

Parameters
  1. DATA, 32 Bytes - hash of a block.
Example Parameters
params: [
   '0xc94770007dda54cF92009BFF0dE90c06F603a09f'
]
Returns

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

Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockHash","params":["0xc94770007dda54cF92009BFF0dE90c06F603a09f"],"id":1}'

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