importprivkey Method
Imports the private key to the wallet.
note
Before you can invoke this method you must:
- Install the plugin RpcServer 
- Call the RPC method - openwalletto open the wallet first.
Parameter Description#
key: The WIF-format private key.
Exception#
- -302, No opened wallet.
Example#
Request body:
{  "jsonrpc": "2.0",  "method": "importprivkey",  "params": ["KwYRSjqmEhK4nPuUZZz1LEUSxvSzSRCv3SVePoe67hjcdPGLRJY5"],  "id": 1}Response body:
{    "jsonrpc": "2.0",    "id": 1,    "result": {        "address": "NPvKVTGZapmFWABLsyvfreuqn73jCjJtN1",        "haskey": true,        "label": null,        "watchonly": false    }}Response description:
Returns the address corresponding to the key.