An Ethereum compatible Parachain built with Substrate.
👉 Discover the Moonbeam project at moonbeam.network.
👉 Learn to use the Moonbeam network with our technical docs.
👉 Reference our crate-level docs (rustdocs) to contribute.
Docker images are published for every tagged release. Learn more with moonbeam --help
.
# Join the public testnet
docker run --network="host" purestake/moonbeam:v0.6.1 --chain alphanet
Developers who are building dApps to run on moonbeam, may want a lightweight node to work with locally. You can quickly spin up a single node with no relay chain backing it using the development service.
# Run a dev service node.
docker run --network="host" purestake/moonbeam:v0.6.1 --dev
The command above will start the node in instant seal mode. It creates a block when a transaction arrives, similar to Ganache's auto-mine. You can also choose to author blocks at a regular interval, or control authoring manually through the RPC.
# Author a block every 6 seconds.
docker run --network="host" purestake/moonbeam:v0.6.1 --dev --sealing 3000
# Manually control the block authorship and finality
docker run --network="host" purestake/moonbeam:v0.6.1 --dev --sealing manual
Running Moonbeam in development mode will pre-fund several well-known addresses that (mostly) contain the letters "th" in their names to remind you that they are for ethereum-compatible usage. These addresses are derived from
Substrate's canonical mnemonic: bottom drive obey lake curtain smoke basket hold race lonely fit walk
# Alith:
- Address:0xf24FF3a9CF04c71Dbc94D0b566f7A27B94566cac
- PrivKey:0x5fb92d6e98884f76de468fa3f6278f8807c48bebc13595d45af5bdc4da702133
# Baltathar:
- Address:0x3Cd0A705a2DC65e5b1E1205896BaA2be8A07c6e0
- PrivKey:0x8075991ce870b93a8870eca0c0f91913d12f47948ca0fd25b49c6fa7cdbeee8b
# Charleth:
- Address:0x798d4Ba9baf0064Ec19eB4F0a1a45785ae9D6DFc
- PrivKey:0x0b6e18cafb6ed99687ec547bd28139cafdd2bffe70e6b688025de6b445aa5c5b
# Dorothy:
- Address:0x773539d4Ac0e786233D90A233654ccEE26a613D9
- PrivKey:0x39539ab1876910bbf3a223d84a29e28f1cb4e2e456503e7e91ed39b2e7223d68
# Ethan:
- Address:0xFf64d3F6efE2317EE2807d223a0Bdc4c0c49dfDB
- PrivKey:0x7dce9bc8babb68fec1409be38c8e1a52650206a7ed90ff956ae8a6d15eeaaef4
# Faith:
- Address:0xC0F0f4ab324C46e55D02D0033343B4Be8A55532d
- PrivKey:0xb9d2ea9a615f3165812e8d44de0d24da9bbd164b65c4f0573e1ce2c8dbd9c8df
# Gerald:
- Address:0x7BF369283338E12C90514468aa3868A551AB2929
- PrivKey:0x96b8a38e12e1a31dee1eab2fffdf9d9990045f5b37e44d8cc27766ef294acf18
To build Moonbeam, you will need a proper Substrate development environment. If you've never worked with a Substrate-based blockchain before, you should probably try the [Setting Up a Moonbeam Node] (https://docs.moonbeam.network/getting-started/local-node/setting-up-a-node/) docs first. If you need a refresher setting up your Substrate environment, see [Substrate's Getting Started Guide] (https://substrate.dev/docs/en/knowledgebase/getting-started/).
# Fetch the code
git clone https://github.com/PureStake/moonbeam
cd moonbeam
# Build the node (The first build will be long (~30min))
cargo build --release
Moonbeam has Rust unit tests as well as typescript integration tests. These tests are run in CI, and can also be run locally.
# Run the Rust unit tests
cargo test
# Install dependencies for integration tests
cd moonbeam-types-bundle
npm i
cd ../tests
npm i
# Run integration tests
npm test
The Ethereum specification described a numeric Chain Id. The Moonbeam mainnet Chain Id will be 1284 because it takes 1284 milliseconds for a moonbeam to reach Earth.
Moonbeam nodes support multiple public chains and testnets, with the following Chain Ids.
Network Description | Chain ID |
---|---|
Local Parachain TestNet | 1280 |
Local Development TestNet | 1281 |
Reserved for other TestNets | 1282 - 1283 |
Moonbeam (Polkadot) | 1284 |
Moonriver (Kusama) | 1285 |
Moonrock (Rococo) | 1286 |
Moonbase Alpha TestNet | 1287 |
Reserved for other public networks | 1288 - 1289 |
The Moonbeam Runtime is built using FRAME and consists of pallets from substrate, frontier, cumulus, and pallets/
.
From substrate:
- Utility: Allows users to use derivative accounts, and batch calls
- Balances: Tracks GLMR token balances
- Sudo: Allows a privileged account to make arbitrary runtime changes - will be removed before launch
- Timestamp: On-Chain notion of time
- Transaction Payment: Transaction payment (fee) management
- Randomness Collective Flip: A (mock) onchain randomness beacon. Will be replaced by parachain randomness by mainnet.
From frontier:
- EVM: Encapsulates execution logic for an Ethereum Virtual Machine
- Ethereum: Ethereum-style data encoding and access for the EVM.
From cumulus:
- ParachainUpgrade: A helper to perform runtime upgrades on parachains
- ParachainInfo: A place to store parachain-relevant constants like parachain id
The following pallets are stored in pallets/
. They are designed for Moonbeam's specific requirements:
- Ethereum Chain Id: A place to store the chain id for each Moonbeam network
- Author Inherent: Allows block authors to include their identity in a block via an inherent
- Parachain Staking: Minimal staking pallet that selects collators by total amount at stake
Moonbeam is open source under the terms of the GPL3. We welcome contributions. You can explore our crate-level documentation at https://purestake.github.io/moonbeam
Moonbeam is following the
Substrate code style
We provide a .editorconfig (compatible with VSCode using RLS)