public static Amount GetERC20Balance(Address address, ERC20Token token, Revision revision)
{
var contractAddr = token.ContractAddress;
var currRevision = revision ?? Revision.BEST;
var abiDefinition = ERC20Contract.DefaultERC20Contract.FindAbiDefinition("balanceOf");
var call = AbstractContract.BuildCall(abiDefinition, address.ToHexString(null));
var contractCallResult = CallContract(call, contractAddr, currRevision);
return(contractCallResult?.GetBalance(token));
}
/// <summary>
/// Get current sponsor from target address. </summary>
/// <param name="target"> <seealso cref="Address"/> </param>
/// <param name="revision"> <seealso cref="Revision"/> </param>
/// <returns> <seealso cref="ContractCallResult"/>
/// throw ClientIOException network error. </returns>
public static ContractCallResult GetCurrentSponsor(Address target, Revision revision)
{
if (target == null)
{
throw ClientArgumentException.Exception("target is null");
}
AbiDefinition abi = ProtoTypeContract.DefaultContract.FindAbiDefinition("currentSponsor");
ContractCall call = AbstractContract.BuildCall(abi,
target.ToHexString(Prefix.ZeroLowerX));
return(CallContract(call, ProtoTypeContract.ContractAddress, revision));
}
/// <summary>
/// Get a master address from target address. </summary>
/// <param name="target"> required <seealso cref="Address"/> target address, means transfer to address. </param>
/// <param name="revision"> optional can be null <seealso cref="Revision"/> block revision. </param>
/// <returns> Contract call result <seealso cref="Revision"/> </returns>
/// <exception cref="ClientIOException"> </exception>
public static ContractCallResult GetMasterAddress(Address target, Revision revision)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target), "target is null");
}
AbiDefinition abi = ProtoTypeContract.DefaultContract.FindAbiDefinition("master");
if (abi == null)
{
throw new ArgumentNullException(nameof(abi), "Can not find abi master method");
}
ContractCall call = AbstractContract.BuildCall(abi, target.ToHexString(Prefix.ZeroLowerX));
return(CallContract(call, ProtoTypeContract.ContractAddress, revision));
}
/// <summary>
/// Get boolean value if the sponsor address sponsored the target address. </summary>
/// <param name="target"> required <seealso cref="Address"/> target address. </param>
/// <param name="sponsor"> required <seealso cref="Address"/> sponsor </param>
/// <param name="revision"> optional <seealso cref="Revision"/> block revision </param>
/// <returns> <seealso cref="ContractCallResult"/>
/// throw ClientIOException network error. </returns>
public static ContractCallResult IsSponsor(Address target, Address sponsor, Revision revision)
{
if (target == null)
{
throw ClientArgumentException.Exception($"{nameof(target)} is null");
}
if (sponsor == null)
{
throw ClientArgumentException.Exception("sponsor is null");
}
AbiDefinition abi = ProtoTypeContract.DefaultContract.FindAbiDefinition("isSponsor");
ContractCall call = AbstractContract.BuildCall(abi,
target.ToHexString(Prefix.ZeroLowerX),
sponsor.ToHexString(Prefix.ZeroLowerX));
return(CallContract(call, ProtoTypeContract.ContractAddress, revision));
}
/// <summary>
/// Get user credit from target address by some block revision. </summary>
/// <param name="target"> <seealso cref="Address"/> target address. </param>
/// <param name="user"> <seealso cref="Address"/> user address. </param>
/// <param name="revision"> <seealso cref="Revision"/> revision. </param>
/// <returns> <seealso cref="ContractCallResult"/> </returns>
/// <exception cref="ClientIOException"> network error. </exception>
public static ContractCallResult GetUserCredit(Address target, Address user, Revision revision)
{
if (target == null)
{
throw ClientArgumentException.Exception($"{nameof(target)} address is null");
}
if (user == null)
{
throw ClientArgumentException.Exception($"{nameof(user)} address is null");
}
AbiDefinition abi = ProtoTypeContract.DefaultContract.FindAbiDefinition("userCredit");
ContractCall call = AbstractContract.BuildCall(abi,
target.ToHexString(Prefix.ZeroLowerX),
user.ToHexString(Prefix.ZeroLowerX));
return(CallContract(call, ProtoTypeContract.ContractAddress, revision));
}