Dapp Development Toolkit

Step 2: Installing the ION Contract Development Toolkit

Clone the PlasmaDLT and ion.cdt repositories. I’d recommend keeping them in the home directory

# Please go to https://hub.docker.com/r/plasmachain/ion.cdt
mkdir /data
mkdir /data/plasma
mkdir /data/plasma/ioncdt
mkdir /data/plasma/bios
mkdir /data/plasm/bios/wallet
#install ion.cdt and ionodesol/plk/ look image local or testnet 
docker pull plasmachain/ion.cdt

Tips:

• ionode — Block producer, which you will use to run a blockchain on your local node.
• sol —  The tool for communicating with the command interface
• ion-cpp — The build system for compiling smart contracts.

Notes:

• To start, we’re going to run a local node by issuing the command below. The -e option enables block production, even if the chain is stale. The -p followed by an parameter specifies id of the block producer that controls this node.

Step 3:  Creating A Contract

Create a new directory called "helloworld" in the contracts directory you previously created

# find source code on https://github.com/plasmadlt/Simple-contracts-for-Plasma/tree/master/helloworld
  $ cd CONTRACTS_DIR
  $ mkdir helloworld
  $ cd helloworld

Take the basic helloworld contract and create your contract based on it

  $ cp ~/contracts/helloworld/* .
  $ ls
   CMakeLists.txt helloworld.abi helloworld.cpp helloworld.hpp

Changed all the names tochanged all the names to Yours

    $ mv helloworld.cpp helloworld1.cpp
    $ mv helloworld.hpp helloworld1.hpp
    $ mv helloworld.abi helloworld1.abi

Tips:

• helloworld.abi — abi is short for “application binary interface”, it’s basically a JSON file that knows where the hooks live once we compile our source into webassembly, more on this later.
• helloworld.cpp — c++ file, this is where our C++ source lives.
• helloworld.hpp — h++ file, normal header file stuff.
• CMakeLists.txt — Delete this, we’re not going to use CMake right now

Notes:

• We want to put together a simple Makefile so we can compile this thing and ensure that the compiler works.

Deploying The Contract: 

After make this change you should be able to compile by just issuing make.

$ :~/helloworld1$ make
Building
# ion-cpp helloworld1.cpp -o helloworld1.wasm — abigen
ion-cpp helloworld1.cpp -o helloworld1.wasm
~/helloworld1$ ls
Makefile helloworld1.abi helloworld1.cpp helloworld1.hpp helloworld1.wasm

Now lets deploy…

$ ~/helloworld1$ make deploy
  sol set contract yoursaccount ../helloworld1 -p yoursaccount@active
  Reading WASM from ../helloworld/helloworld1.wasm…
  Publishing contract…
  executed transaction: e9136a748a9960c0e095336e7ee6d11000794026905f5d65298df8771919013e 7000 bytes 3437 us

Tips:

• Check if you can access you node using link http://you_server:your_http_port/v1/chain/get_info

Notes:

• If you would like to run a Block Producer node you need register your node from administration network

Other tools: Sol commands

Send token

# You can find a complete list of tokens on the official website.
$ docker exec -i <network>-bios-node sol  transfer <your account> <receiver account> "1.000000000000000000 USDP" "test memo text"

Get Balance

$ docker exec -i <network>-bios-node sol  get currency balance usdp <account name>

List your last action (use -h to get help, don`t work now, works with history node only)

$ docker exec -i <network>-bios-node sol  get actions <account name>

Get blockchain info

$ docker exec -i <network>-bios-node sol  get info <account name>

Get account info

$ docker exec -i <network>-bios-node sol  get  <account name>
$ docker exec -i <network>-bios-node sol  get  <account name> --json

Registration producer

$ docker exec -i <network>-bios-node sol  cleos system regproducer <accountname> PLASMA1234534... http://producer.site Mars