/// <summary>
/// Calculate required keys to sign the given transaction
/// </summary>
/// <param name="availableKeys">available public keys list</param>
/// <param name="trx">transaction requiring signatures</param>
/// <returns>required public keys</returns>
public static async Task <List <string> > GetRequiredKeys(EosApi api, core.Services.AbiSerializationProvider abiSerializer, List <string> availableKeys, Transaction trx)
{
int actionIndex = 0;
var abiResponses = await abiSerializer.GetTransactionAbis(trx);
foreach (var action in trx.context_free_actions)
{
action.data = SerializationHelper.ByteArrayToHexString(abiSerializer.SerializeActionData(action, abiResponses[actionIndex++]));
}
foreach (var action in trx.actions)
{
action.data = SerializationHelper.ByteArrayToHexString(abiSerializer.SerializeActionData(action, abiResponses[actionIndex++]));
}
return((await api.GetRequiredKeys(new GetRequiredKeysRequest()
{
available_keys = availableKeys,
transaction = trx
})).required_keys);
}
public async Task GetRequiredKeys()
{
var getInfoResult = await DefaultApi.GetInfo();
var getBlockResult = await DefaultApi.GetBlock(new GetBlockRequest()
{
block_num_or_id = getInfoResult.last_irreversible_block_num.ToString()
});
var trx = new Transaction()
{
//trx headers
expiration = getInfoResult.head_block_time.AddSeconds(60), //expire Seconds
ref_block_num = (UInt16)(getInfoResult.last_irreversible_block_num & 0xFFFF),
ref_block_prefix = getBlockResult.ref_block_prefix,
// trx info
max_net_usage_words = 0,
max_cpu_usage_ms = 0,
delay_sec = 0,
context_free_actions = new List <Core.Api.v1.Action>(),
actions = new List <Core.Api.v1.Action>()
{
new Core.Api.v1.Action()
{
account = "eosio.token",
authorization = new List <PermissionLevel>()
{
new PermissionLevel()
{
actor = "tester112345", permission = "active"
}
},
name = "transfer",
data = new Dictionary <string, object>()
{
{ "from", "tester112345" },
{ "to", "tester212345" },
{ "quantity", "1.0000 EOS" },
{ "memo", "hello crypto world!" }
}
}
},
transaction_extensions = new List <Extension>()
};
int actionIndex = 0;
var abiSerializer = new AbiSerializationProvider(DefaultApi);
var abiResponses = await abiSerializer.GetTransactionAbis(trx);
foreach (var action in trx.context_free_actions)
{
action.data = SerializationHelper.ByteArrayToHexString(abiSerializer.SerializeActionData(action, abiResponses[actionIndex++]));
}
foreach (var action in trx.actions)
{
action.data = SerializationHelper.ByteArrayToHexString(abiSerializer.SerializeActionData(action, abiResponses[actionIndex++]));
}
var getRequiredResult = await DefaultApi.GetRequiredKeys(new GetRequiredKeysRequest()
{
available_keys = new List <string>()
{
"EOS8Q8CJqwnSsV4A6HDBEqmQCqpQcBnhGME1RUvydDRnswNngpqfr"
},
transaction = trx
});
}
