gscdk 0.4.0

Go Smart Contract Development Kit

Go Smart Contracts Development Kit

What the Go Smart Contracts look like?

Here is an example

package main

import (
	"github.com/uuosio/chain"
)

//table mytable
type MyData struct {
	primary uint64 //primary: t.primary
	name    string
}

//contract mycontract
type MyContract struct {
	Receiver      chain.Name
	FirstReceiver chain.Name
	Action        chain.Name
}

func NewContract(receiver, firstReceiver, action chain.Name) *MyContract {
	return &MyContract{receiver, firstReceiver, action}
}

//action sayhello
func (c *MyContract) SayHello(name string) {
	code := c.Receiver
	scope := code
	payer := c.Receiver
	mydb := NewMyDataDB(code, scope)
	primary := uint64(111)
	if it, data := mydb.Get(primary); it.IsOk() {
		if data.name != name {
			chain.Println("Welcome new friend:", name)
		} else {
			chain.Println("Welcome old friend", name)
		}
		data.name = name
		mydb.Update(it, data, payer)
	} else {
		chain.Println("Welcome new friend", name)
		data := &MyData{primary, name}
		mydb.Store(data, payer)
	}
}

Installation

python3 -m pip install gscdk

For Windows platform:

python -m pip install gscdk

Upgrade From an Old Version

python3 -m pip install --upgrade gscdk

For Windows platform:

python -m pip install --upgrade gscdk

Installing gscdk in Docker

Building docker image for gscdk

docker build github.com/learnforpractice/gscdk-docker#main -t gscdk/test

Running

docker run -w /root/dev -it --rm -v "$(pwd)":/root/dev -t gscdk/test /bin/bash

Building Go Smart Contracts Compiler

Follow the steps in Building

That will build tinygo command in compiler/build directory that support for building Go Smart Contracts.

export PATH=$(pwd)/compiler/build:$PATH

eosio-go

Initializing a project with "init" subcommand

"init" command initialize a project with contract name

eosio-go init mycontract
cd mycontract

Generating ABI and Extra Code for Smart Contracts

eosio-go gencode

Code generation is also the default option for "build" command

Building Go Smart Contracts Project

Compiling the Source Code

eosio-go build -o mycontract.wasm .

Disable Code Generation during Building

eosio-go build -gen-code=false -o mycontract .

Disable Striping WASM File after Building

eosio-go build -strip=false -o mycontract .