syntax = "proto3";

import "proto/loom.proto";


// ERC20 messages
// See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md

// read only
message TotalSupplyRequest {

}

message TotalSupplyResponse {
    BigUInt total_supply = 1;
}

message BalanceOfRequest {
    Address owner = 1;
}

message BalanceOfResponse {
    BigUInt balance = 1;
}

message AllowanceRequest {
    Address owner = 1;
    Address spender = 2;
}

message AllowanceResponse {
    BigUInt amount = 1;
}

// volatile
message ApproveRequest {
    Address spender = 1;
    BigUInt amount = 2;
}

message ApproveResponse {

}

message TransferRequest {
    Address to = 1;
    BigUInt amount = 2;
}

message TransferResponse {

}

message TransferFromRequest {
    Address from = 1;
    Address to = 2;
    BigUInt amount = 3;
}

message TransferFromResponse {

}