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Go version CircleCI

iotex-core

Welcome to the official Go implementation of IoTeX protocol! IoTeX is building the next generation of the decentralized network for IoT powered by scalability- and privacy-centric blockchains. Please refer to IoTeX whitepaper for details.

Currently, This repo is of alpha-quality with limited features supported and it is subjected to rapid change. Please contact us if you intend to run it in production.

System Components and Flowchart

systemflowchart

Feature List

Testnet Preview (codename: StoneVan)

  1. TBC (Transactions, Block & Chain)
  • Bech32-encoded address
  • Serialization and deserialize of messages on the wire
  • Merkle tree
  • Transactions, blocks and chain
  • Transaction pool
  • Fast and reliable blockchain storage and query using BoltDB
  • Block sync from network peers
  • Basic framework for script and VM
  1. Network
  • Efficient gossip protocol over TLS
  • Broadcast & unicast semantics
  • Seeding through network config
  • Rate-limit requests per connection
  • Peer discovery
  • Large-scale simulation and load test
  1. Consensus
  • Framework for plugable consensus
  • Standalone and NOOP schemes
  • Basic implementation of R-DPoS scheme
  1. Clients
  • Initial RPC support
  • Tools for injecting transactions/blocks
  1. Testing & Integration
  • Unit test coverage > 50%
  • Integration tests
  • Staging development to 50 nodes (for internal use only)

Testnet Alpha & Beta

  • libsect283k1 and integration
  • Random beacon and full R-DPoS with voting support
  • Lightweight stealth address
  • Cross Chain Communication (CCC)
  • Fast block sync and checkpointing
  • Script and VM
  • Full explorer and wallet supporting Hierarchical Deterministic (HD) addresses
  • SPV clients
  • Seeding through IPFS and version negotiation
  • Pluggable transportation framework w/ UDP + TCP support
  • Peer metrics
  • Unit test coverage > 70%
  • e2e demo among 500-1000 peers
  • Enhancement of existing features
  • And much more ...

Dev Tips

Minimum requirements

Components Version Description
Golang >= 1.9.2 The Go Programming Language
Glide >= 0.13.0 Glide is a dependency management tool for Go

Setup Dev Environment

mkdir -p ~/go/src/github.com/iotexproject
cd ~/go/src/github.com/iotexproject
git clone [email protected]:iotexproject/iotex-core.git
cd iotex-core

glide install

make fmt; make build

Setup Precommit Hook

Install git hook tools from precommit hook first and then

pre-commit install

Run Unit Tests

make test

Run

make run You will see log message output like:

W0416 12:52:15.652394    1576 blocksync.go:220] ====== receive tip block 116
W0416 12:52:15.653014    1576 blocksync.go:276] ------ [127.0.0.1:4689] receive block 116 in 616.939µs
W0416 12:52:15.653967    1576 blocksync.go:293] ------ commit block 116 time = 923.364µs

W0416 12:52:16.648667    1576 blocksync.go:276] ------ [127.0.0.1:4689] receive block 117 in 994.656929ms
W0416 12:52:16.649745    1576 blocksync.go:293] ------ commit block 117 time = 1.029462ms

W0416 12:52:17.648360    1576 blocksync.go:276] ------ [127.0.0.1:4689] receive block 118 in 998.560518ms
W0416 12:52:17.649604    1576 blocksync.go:293] ------ commit block 118 time = 1.186833ms

W0416 12:52:18.648309    1576 blocksync.go:276] ------ [127.0.0.1:4689] receive block 119 in 998.658293ms
W0416 12:52:18.649432    1576 blocksync.go:293] ------ commit block 119 time = 1.075772ms

W0416 12:52:19.653393    1576 blocksync.go:276] ------ [127.0.0.1:4689] receive block 120 in 1.003920977s
W0416 12:52:19.654698    1576 blocksync.go:293] ------ commit block 120 time = 1.256924ms

W0416 12:52:20.649165    1576 blocksync.go:276] ------ [127.0.0.1:4689] receive block 121 in 994.424355ms
W0416 12:52:20.650254    1576 blocksync.go:293] ------ commit block 121 time = 1.0282ms

W0416 12:52:21.653420    1576 blocksync.go:276] ------ [127.0.0.1:4689] receive block 122 in 1.00312559s
W0416 12:52:21.654650    1576 blocksync.go:293] ------ commit block 122 time = 1.182673ms

Deploy w/ Docker Image

docker build . -t stonevan

docker run stonevan

Contribution

We are glad to have contributors out of the core team; contributions, including (but not limited to) style/bug fixes, implementation of features, proposals of schemes/algorithms, and thorough documentation, are welcomed. Please refer to our contribution guideline for more information.

License

This project is licensed under the Apache License 2.0.

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