Getmempooldescendants

getmempooldescendants "txid" ( verbose )

If txid is in the mempool, returns all in-mempool descendants.

Arguments:
1. txid       (string, required) The transaction id (must be in mempool)
2. verbose    (boolean, optional, default=false) True for a json object, false for array of transaction ids

Result (for verbose = false):
[           (json array)
  "hex",    (string) The transaction id of an in-mempool descendant transaction
  ...
]

Result (for verbose = true):
{                                  (json object)
  "transactionid" : {              (json object)
    "size" : n,                    (numeric) transaction size.
    "time" : xxx,                  (numeric) local time transaction entered pool in seconds since 1 Jan 1970 GMT
    "height" : n,                  (numeric) block height when transaction entered pool
    "fees" : {                     (json object)
      "base" : n,                  (numeric) transaction fee in XEC
      "modified" : n               (numeric) transaction fee with fee deltas used for mining priority in XEC
    },
    "depends" : [                  (json array) unconfirmed transactions used as inputs for this transaction
      "hex",                       (string) parent transaction id
      ...
    ],
    "spentby" : [                  (json array) unconfirmed transactions spending outputs from this transaction
      "hex",                       (string) child transaction id
      ...
    ],
    "unbroadcast" : true|false     (boolean) Whether this transaction is currently unbroadcast (initial broadcast not yet acknowledged by any peers)
  },
  ...
}

Examples:
> bitcoin-cli getmempooldescendants "mytxid"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "getmempooldescendants", "params": ["mytxid"]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/