Value Contract
Update Dependencies
sudo apt update -y && sudo apt upgrade -y
sudo apt install -y make bzip2 automake libbz2-dev libssl-dev doxygen graphviz libgmp3-dev \
autotools-dev libicu-dev python2.7 python2.7-dev python3 python3-dev \
autoconf libtool curl zlib1g-dev sudo ruby libusb-1.0-0-dev \
libcurl4-gnutls-dev pkg-config patch llvm-7-dev clang-7 vim-common jq libncurses5 git
Unlock Wallet
cline wallet unlock -n YourWalletName
Download Inery.cdt Tools Binary & Setup Path
git clone https://github.com/inery-blockchain/inery.cdt
export PATH=$PATH:$HOME/inery.cdt/bin/
Create Contract
sudo nano inrcrud_contract.cpp
use code below as an example contract
#include <inery/inery.hpp>
#include <inery/print.hpp>
#include <string>
using namespace inery;
using std::string;
class [[inery::contract]] inrcrud : public inery::contract {
public:
using inery::contract::contract;
[[inery::action]] void create( uint64_t id, name user, string data ) {
records recordstable( _self, id );
auto existing = recordstable.find( id );
check( existing == recordstable.end(), "record with that ID already exists" );
check( data.size() <= 256, "data has more than 256 bytes" );
recordstable.emplace( _self, [&]( auto& s ) {
s.id = id;
s.owner = user;
s.data = data;
});
print( "Hello, ", name{user} );
print( "Created with data: ", data );
}
[[inery::action]] void read( uint64_t id ) {
records recordstable( _self, id );
auto existing = recordstable.find( id );
check( existing != recordstable.end(), "record with that ID does not exist" );
const auto& st = *existing;
print("Data: ", st.data);
}
[[inery::action]] void update( uint64_t id, string data ) {
records recordstable( _self, id );
auto st = recordstable.find( id );
check( st != recordstable.end(), "record with that ID does not exist" );
recordstable.modify( st, get_self(), [&]( auto& s ) {
s.data = data;
});
print("Data: ", data);
}
[[inery::action]] void destroy( uint64_t id ) {
records recordstable( _self, id );
auto existing = recordstable.find( id );
check( existing != recordstable.end(), "record with that ID does not exist" );
const auto& st = *existing;
recordstable.erase( st );
print("Record Destroyed: ", id);
}
private:
struct [[inery::table]] record {
uint64_t id;
name owner;
string data;
uint64_t primary_key()const { return id; }
};
typedef inery::multi_index<"records"_n, record> records;
};
then CTRL + X , then Y, enter.
Compile Contract
//create new folder for compiling
mkdir inrcrud
//move contract to the folder
mv inrcrud_contract.cpp inrcrud/inrcrud.cpp
//go to compiling folder
cd inrcrud
//compile contract
inery-cpp -abigen -o inrcrud.wasm inrcrud.cpp
//set contract to your account
cline set contract AccountName $HOME/inrcrud -p AccountName --json
Push Transaction Example
Create new data
cline push action AccountName create '[1, AccountName, "My first Value Contract Record"]' -p AccountName -j
Read data
cline push action AccountName read [1] -p AccountName -j
Update data
cline push action AccountName update '[ 1, "My first Record Modified"]' -p AccountName -j
Delete data
cline push action AccountName destroy [1] -p AccountName
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