importprivkey "bitcoinprivkey" ( "label" rescan )
Adds a private key (as returned by dumpprivkey) to your wallet.
Arguments:
1. "bitcoinprivkey" (string, required) The private key (see dumpprivkey)
2. "label" (string, optional) an optional label
3. rescan (boolean, optional, default=true) Rescan the wallet for transactions
Examples:
Dump a private key
> bitcoin-cli dumpprivkey "myaddress"
Import the private key
> bitcoin-cli importprivkey "mykey"
Import using a label
> bitcoin-cli importprivkey "mykey" "testing" false
As a json rpc call
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "importprivkey", "params": ["mykey", "testing", false] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/