README
¶
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-go project aims to demonstrate the principle of this consensus mechanism, verifying its improved throughput and transaction confirmation speed.
The lemochain-go project is the Golang implement of this consensus mechanism. lemo-client is document of the command in lemochain-go console.
Installing
Setup build tools
- Install
golang, ensure the Go version is 1.10(or any later version). - Set up the Path environment variable
GOPATH - Install
git - Make source code directory in
GOPATHand download source code into itmkdir src\github.com\LemoFoundationLtd git clone https://github.com/LemoFoundationLtd/lemochain-go src\github.com\LemoFoundationLtd\lemochain-go - Install
GCC, cause ECDSA is required. Installmingwif you use windows, otherwise click here to read the GCC documentation. - Install
MySQLv5.3 (or any later version).
Compiling
cd src\github.com\LemoFoundationLtd\lemochain-go\main
go build
NOTE: Target platform should be x64
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",
"sleepTime": "3000",
"timeout": "10000",
"dbUri": "root:123456@tcp(127.0.0.1:3306)/lemochain?charset=utf8mb4",
"dbDriver": "mysql"
}
chainIDThe ID of LemoChainsleepTimeWait seconds to generation block for fear that there is no transactins in blocktimeoutThe maximum limit of block generation for every nodesdbUriThe connection string of database. It is like[USER_NAME]:[PASSWORD]@tcp([IP]:[PORT])/[DB_NAME]?charset=utf8mb4dbDriverThe type of database driver
| 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
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
Directories
¶
| Path | Synopsis |
|---|---|
|
vm/abi
Package abi implements the Lemochain ABI (Application Binary Interface).
|
Package abi implements the Lemochain ABI (Application Binary Interface). |
|
vm/runtime
Package runtime provides a basic execution model for executing EVM code.
|
Package runtime provides a basic execution model for executing EVM code. |
|
Package common contains various helper functions.
|
Package common contains various helper functions. |
|
base26
base26 character set are 83456729ABCDFGHJKNPQRSTWYZ
|
base26 character set are 83456729ABCDFGHJKNPQRSTWYZ |
|
bitutil
Package bitutil implements fast bitwise operations.
|
Package bitutil implements fast bitwise operations. |
|
compiler
Package compiler wraps the Solidity compiler executable (solc).
|
Package compiler wraps the Solidity compiler executable (solc). |
|
crypto/bn256
Package bn256 implements the Optimal Ate pairing over a 256-bit Barreto-Naehrig curve.
|
Package bn256 implements the Optimal Ate pairing over a 256-bit Barreto-Naehrig curve. |
|
crypto/bn256/cloudflare
Package bn256 implements a particular bilinear group at the 128-bit security level.
|
Package bn256 implements a particular bilinear group at the 128-bit security level. |
|
crypto/bn256/google
Package bn256 implements a particular bilinear group.
|
Package bn256 implements a particular bilinear group. |
|
crypto/secp256k1
Package secp256k1 wraps the bitcoin secp256k1 C library.
|
Package secp256k1 wraps the bitcoin secp256k1 C library. |
|
crypto/sha3
Package sha3 implements the SHA-3 fixed-output-length hash functions and the SHAKE variable-output-length hash functions defined by FIPS-202.
|
Package sha3 implements the SHA-3 fixed-output-length hash functions and the SHAKE variable-output-length hash functions defined by FIPS-202. |
|
flock
Package flock provides portable file locking.
|
Package flock provides portable file locking. |
|
hexutil
Package hexutil implements hex encoding with 0x prefix.
|
Package hexutil implements hex encoding with 0x prefix. |
|
math
Package math provides integer math utilities.
|
Package math provides integer math utilities. |
|
mclock
package mclock is a wrapper for a monotonic clock source
|
package mclock is a wrapper for a monotonic clock source |
|
rlp
Package rlp implements the RLP serialization format.
|
Package rlp implements the RLP serialization format. |
|
jsre
Package jsre provides execution environment for JavaScript.
|
Package jsre provides execution environment for JavaScript. |
|
jsre/deps
Package deps contains the console JavaScript dependencies Go embedded.
|
Package deps contains the console JavaScript dependencies Go embedded. |
|
p2p
Package p2p implements the Lemochain p2p network protocols.
|
Package p2p implements the Lemochain p2p network protocols. |
|
rpc
Package rpc provides access to the exported methods of an object across a network or other I/O connection.
|
Package rpc provides access to the exported methods of an object across a network or other I/O connection. |
|
trie
Package trie implements Merkle Patricia Tries.
|
Package trie implements Merkle Patricia Tries. |