Coinex Smart Chain
CoinEx is committed to product development and service improvement, and contributes its share to the infrastructure of the blockchain world. CSC
is a small part of the development prospect.
CoinEx Smart Chain (CSC) is a smart contract chain that supports up to 101 validators. Aside from shorter time for block generation and lower fees for transactions, CSC
is also fully compatible with Ethereum virtual machine(EVM) and protocols while supporting high-performance transactions. And to achieve that, the easiest solution is to develop based on go-ethereum fork, as we respect the great work of Ethereum very much.
CSC Features
- Decentralization: Permission-free, anyone can become a validator by staking
CET
. - EVM compatibility: Fully compatible with Ethereum virtual machine(EVM), which means that almost all DApps, ecosystem components and tools on Ethereum can be migrated to
CSC
directly or with very small changes. - High performance: 600+ TPS, 3s block time
Native Token
CET
on CSC
runs the same way as ETH
runs on Ethereum, and its main functions are:
- As block reward for validators
- To pay for the gas for transfers and contract calls on
CSC
- To pay for the transaction fees for deploying smart contracts on
CSC
- To be delegated to the selected validators
Building the source
For prerequisites and detailed build instructions please read the Compile.
Building cetd
requires both a Go (version 1.13 or later) and a C compiler. You can install them using your favourite package manager. Once the dependencies are installed, run
make cetd
cetd
Running Going through all the possible command line flags is out of scope here (please consult our CLI), but we've enumerated a few common parameter combos to get you up to speed quickly on how you can run your own cetd
instance.
Hardware Requirements
- 1T of SSD storage for mainnet, 500G of SSD storage for testnet.
- 16 cores of CPU and 32 gigabytes of memory (RAM) for mainnet.
- 4 cores of CPU and 8 gigabytes of memory (RAM) for testnet.
- A broadband Internet connection with upload/download speeds of at least 10 megabyte per second
Full node on the testnet
By far the most common scenario is people wanting to simply interact with the CSC
network: create accounts; transfer funds; deploy and interact with contracts. For this particular use-case the user doesn't care about years-old historical data, so we can fast-sync quickly to the current state of the network. To do so:
$ cetd console
This command will:
- Start
cetd
in fast sync mode (default, can be changed with the--syncmode
flag), causing it to download more data in exchange for avoiding processing the entire history of the Ethereum network, which is very CPU intensive. - Start up
cetd
's built-in interactive JavaScript console, (via the trailingconsole
subcommand) through which you can invoke all officialweb3
methods as well ascetd
's own management APIs. This tool is optional and if you leave it out you can always attach to an already runningcetd
instance withcetd attach
.
Configuration
As an alternative to passing the numerous flags to the cetd
binary, you can also pass a configuration file via:
$ cetd --config /path/to/your_config.toml
cetd
nodes
Programmatically interfacing As a developer, sooner rather than later you'll want to start interacting with cetd
and the CSC
network via your own programs and not manually through the console. To aid this, cetd
has built-in support for a JSON-RPC based APIs (standard APIs and specific APIs). These can be exposed via HTTP, WebSockets and IPC (UNIX sockets on UNIX based platforms, and named pipes on Windows).
The IPC interface is enabled by default and exposes all the APIs supported by cetd
, whereas the HTTP and WS interfaces need to manually be enabled and only expose a subset of APIs due to security reasons. These can be turned on/off and configured as you'd expect.
HTTP based JSON-RPC API options:
--http
Enable the HTTP-RPC server--http.addr
HTTP-RPC server listening interface (default:localhost
)--http.port
HTTP-RPC server listening port (default:8545
)--http.api
API's offered over the HTTP-RPC interface (default:eth,net,web3
)--http.corsdomain
Comma separated list of domains from which to accept cross origin requests (browser enforced)--ws
Enable the WS-RPC server--ws.addr
WS-RPC server listening interface (default:localhost
)--ws.port
WS-RPC server listening port (default:8546
)--ws.api
API's offered over the WS-RPC interface (default:eth,net,web3
)--ws.origins
Origins from which to accept websockets requests--ipcdisable
Disable the IPC-RPC server--ipcapi
API's offered over the IPC-RPC interface (default:admin,debug,eth,miner,net,personal,shh,txpool,web3
)--ipcpath
Filename for IPC socket/pipe within the datadir (explicit paths escape it)
You'll need to use your own programming environments' capabilities (libraries, tools, etc) to connect via HTTP, WS or IPC to a cetd
node configured with the above flags and you'll need to speak JSON-RPC on all transports. You can reuse the same connection for multiple requests!
Note: Please understand the security implications of opening up an HTTP/WS based transport before doing so! Hackers on the internet are actively trying to subvert CSC
nodes with exposed APIs! Further, all browser tabs can access locally running web servers, so malicious web pages could try to subvert locally available APIs!
Contribution
Thank you for considering to help out with the source code! We welcome contributions from anyone on the internet, and are grateful for even the smallest of fixes!
If you'd like to contribute to csc
, please fork, fix, commit and send a pull request for the maintainers to review and merge into the main code base. If you wish to submit more complex changes though, please contact to the core developer
to ensure those changes are in line with the general philosophy of the project and/or get some early feedback which can make both your efforts much lighter as well as our review and merge procedures quick and simple.
Please make sure your contributions adhere to our coding guidelines:
- Code must adhere to the official Go formatting guidelines (i.e. uses gofmt).
- Code must be documented adhering to the official Go commentary guidelines.
- Pull requests need to be based on and opened against the
master
branch. - Commit messages should be prefixed with the package(s) they modify.
- E.g. "eth, rpc: make trace configs optional"
Please see the Developers' Guide for more details on configuring your environment, managing project dependencies, and testing procedures.
License
The csc library (i.e. all code outside of the cmd
directory) is licensed under the GNU Lesser General Public License v3.0, also included in our repository in the COPYING.LESSER
file.
The csc binaries (i.e. all code inside of the cmd
directory) is licensed under the GNU General Public License v3.0, also included in our repository in the COPYING
file.