⚠️ Moonbeam new github organization ⚠️

Moonbeam repository has been migrated from purestake to the Moonbeam Foundation organization:
https://github.com/moonbeam-foundation/moonbeam

Github references/cloning as well as cargo build will keep working as expected. However, it is recommended to update those references once the migration is complete.

Information

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.

Run an alphanet node with Docker

Docker images are published for every tagged release. Learn more with moonbeam --help.

# Join the public testnet
docker run --network="host" moonbeamfoundation/moonbeam:v0.36.0 --chain alphanet

You can find more detailed instructions to run a full node in our TestNet

Run a local development node with Docker

Developers who are building dApps to run on moonbeam, may want a lightweight node to work with locally. You can quickly set up a single node without a relay chain backing it using the development service.

# Run a dev service node
docker run --network="host" moonbeamfoundation/moonbeam:v0.36.0 --dev

For more information, see our detailed instructions to run a development node

Sealing options

The above command 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" moonbeamfoundation/moonbeam:v0.36.0 --dev --sealing 6000

# Manually control the block authorship and finality
docker run --network="host" moonbeamfoundation/moonbeam:v0.36.0 --dev --sealing manual

Prefunded Development Addresses

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

# Goliath:
- Address: 0x7BF369283338E12C90514468aa3868A551AB2929
- PrivKey: 0x96b8a38e12e1a31dee1eab2fffdf9d9990045f5b37e44d8cc27766ef294acf18

# Heath:
- Address: 0x931f3600a299fd9B24cEfB3BfF79388D19804BeA
- PrivKey: 0x0d6dcaaef49272a5411896be8ad16c01c35d6f8c18873387b71fbc734759b0ab

# Ida:
- Address: 0xC41C5F1123ECCd5ce233578B2e7ebd5693869d73
- PrivKey: 0x4c42532034540267bf568198ccec4cb822a025da542861fcb146a5fab6433ff8

# Judith:
- Address: 0x2898FE7a42Be376C8BC7AF536A940F7Fd5aDd423
- PrivKey: 0x94c49300a58d576011096bcb006aa06f5a91b34b4383891e8029c21dc39fbb8b

Additionally, the prefunded default account for testing purposes is as follows:

# Gerald:
- Address: 0x6Be02d1d3665660d22FF9624b7BE0551ee1Ac91b
- PrivKey: 0x99b3c12287537e38c90a9219d4cb074a89a16e9cdb20bf85728ebd97c343e342

Build the Moonbeam Node

To build Moonbeam, a proper Substrate development environment is required. If you're new to working with Substrate-based blockchains, consider starting with the Getting Started with a Moonbeam Development Node documentation.

If you need a refresher setting up your Substrate environment, see Substrate's Getting Started Guide.

Please note that cloning the master branch might result in an unstable build. If you want a stable version, check out the latest releases.

# Fetch the code
git clone https://github.com/moonbeam-foundation/moonbeam
cd moonbeam

# Build the node (The first build will be long (~30min))
cargo build --release

Run tests

Moonbeam incorporates Rust unit tests and TypeScript integration tests, which are executed in CI and can also be run locally.

# Run the Rust unit tests
cargo test

Important

If you do not have pnpm, you can install with: npm install -g pnpm

cd test
pnpm i 
pnpm moonwall test dev_moonbase

Chain IDs

The Ethereum specification describes a numeric Chain Id. The Moonbeam mainnet will have a Chain Id of 1284, symbolizing the 1284 milliseconds it takes for a moonbeam to reach Earth.

Moonbeam nodes support a variety of public chains and testnets, each with their respective Chain Ids as follows:

Network Description	Chain ID	Target Relay Runtime
Local Parachain TestNet	1280
Local Development TestNet	1281
Reserved for other TestNets	1282 - 1283
Moonbeam	1284	Polkadot
Moonriver	1285	Kusama
Moonrock	1286	Rococo
Moonbase Alpha TestNet	1287	Westend
Reserved for other public networks	1288 - 1289

Note that the runtimes can also be configured to target different relay networks.

Runtime Architecture

The Moonbeam Runtime, built using FRAME, comprises pallets from Polkadot-SDK, Frontier, and the pallets/ directory.

From Polkadot-SDK:

• 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. This 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, which will be replaced by parachain randomness by mainnet.
• ParachainUpgrade: A helper to perform runtime upgrades on parachains
• ParachainInfo: A place to store parachain-relevant constants like parachain id

From Frontier:

• EVM Chain Id: A place to store the chain id for each Moonbeam network
• EVM: Encapsulates execution logic for an Ethereum Virtual Machine
• Ethereum: Ethereum-style data encoding and access for the EVM.

The following pallets are stored in pallets/. They are designed for Moonbeam's specific requirements:

• 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

When modifying the git repository for these dependencies, a tool called diener can be used to replace the git URL and branch for each reference in all Cargo.toml files with a single command. This alleviates a lot of the repetitive modifications necessary when changing dependency versions.

Rustdocs

Rustdocs for the Moonbeam codebase are automatically generated and published here.

Contribute

Moonbeam is open-source under the terms of the GPL3, and we welcome contributions.. Please review our CONTRIBUTIONS.md document for more information.

Example of version bumping PR (runtime and node): https://github.com/moonbeam-foundation/moonbeam/pull/601/files