syntax = "proto3";

package blockchain;

service BlockchainService {
    rpc GetBalance (BalanceRequest) returns (BalanceResponse);
    rpc SendTransaction (TransactionRequest) returns (TransactionResponse);
    rpc GetChainId (ChainIdRequest) returns (ChainIdResponse);
}

message BalanceRequest {
    string address = 1;
}

message BalanceResponse {
    string balance = 1;
}

message TransactionRequest {
    string from = 1;
    string to = 2;
    string amount = 3;
}

message TransactionResponse {
    string transactionHash = 1;
}

message ChainIdRequest {}

message ChainIdResponse {
    string chainId = 1;
}