LemoChain

LemoChain is a data exchange blockchain, where companies of all sizes can monetize their structured business data and trade within the platform. By strengthening the relevance of the blockchain and daily business, LemoChain will accelerate the integration of blockchain technology into our daily lives.
The original DPoVP consensus mechanism of LemoChain has the characteristic of high scalability, which solves the problem of the slow response of the existing distributed networks and the difficulties they face in complying with various application scenarios.
The lemochain-core project aims to demonstrate the principle of this consensus mechanism, verifying its improved throughput and transaction confirmation speed.
The lemochain-core project is the Golang implement of this consensus mechanism. lemo-client is document of the command in lemochain-core console.

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Installing

Setup build tools

• Install golang, ensure the Go version is 1.13(or any later version).
• Download the source of lemochain-core
• Install GCC, cause ECDSA is required. Install mingw if you use windows, otherwise click here to read the GCC documentation.

Compiling

cd lemochain-core\main
go build

NOTE: Target platform should be x64

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Running

configuration file

It is necessary for running LemoChain. It is located in datadir and named as config.json It defines initial deputy node list and some running configuration about this node.

{
	"chainID": "1203",
	"deputyCount": "17",
	"sleepTime": "3000",
	"timeout": "10000",
	"termDuration": "1000000",
	"interimDuration":"1000"
}

• chainID The ID of LemoChain
• deputyCount The max consensus node count
• sleepTime Wait seconds to generation block for fear that there is no transactions in block
• timeout The maximum limit of block generation for every nodes
• termDuration The block numbers between to snapshot blocks
• interimDuration The block numbers of interim period

chainID	description
1	LemoChain main net
100	LemoChain develop net

whitelist file

The node will connect all nodes in this file automatically. It is located in datadir and named as whitelist
Write each node address in a row. The format is NodeID@IP:Port. There are some LemoChain dev-net nodes below:

7739f34055d3c0808683dbd77a937f8e28f707d5b1e873bbe61f6f2d0347692f36ef736f342fb5ce4710f7e337f062cc2110d134b63a9575f78cb167bfae2f43@149.28.25.8:7003
34f0df789b46e9bc09f23d5315b951bc77bbfeda653ae6f5aab564c9b4619322fddb3b1f28d1c434250e9d4dd8f51aa8334573d7281e4d63baba913e9fa6908f@45.77.121.107:7003
c7021a9c903da38ed499f486dba4539fbe12b8878d43e566674beebd36746e77c827a2849db3c1289e0adf25fce294253be5e7c9bb65d0b94cf8a7ec34c91468@149.28.68.93:7007

blacklist file

The node will refuse to connect all nodes in this file. It is located in datadir and named as blacklist
The configuration is the same as the whitelist file.

command line

Start up LemoChain's built-in interactive JavaScript console, (via the trailing console subcommand) through which you can invoke all official SDK methods. You can simply interact with the LemoChain network; create accounts; transfer funds; deploy and interact with contracts. To do so:

$ glemo console

This command will start a node to sync block datas from LemoChain network. The console subcommand is optional and if you leave it out you can always attach to an already running node with glemo attach.

Run with specific data directory

$ glemo console --datadir=path/to/custom/data/folder