open-runtime-module-library

The Open Runtime Module Library (ORML) is a community maintained collection of Substrate runtime modules.

Runtime Modules Overview

Utility

• auction
  • Implements a generalized auction interface, used by Acala for liquidation auctions.
• authority
  • Allow more advanced permission configuration such as timelock for governance actions.
• gradually-update
  • Provides way to adjust numeric parameter gradually over a period of time.
• oracle
  • Allow offchain oracle providers to feed data to be consumed by onchain pallets.
• rewards
  • Implements ability to calculate and distribute token staking rewards.
• traits
  • Implements various utility traits including BasicCurrency, MultiCurrency, Auction and more. Used by other ORML pallets.

Tokens

• asset-registry
  • Register asset / token metadata including name, decimals, and XCM MultiLocation
  • Partially based on the Acala’s asset-registry pallet, which includes some Acala specific code (e.g. EVM+) so not suitable for other teams.
• currencies
  • Provide an unified interface to combine pallet-balances and orml-tokens
• nft
  • Provide a non-fungible-token implementation
• payments
  • This pallet allows users to create secure reversible payments that keep funds locked in a merchant’s account until the off-chain goods are confirmed to be received. Each payment gets assigned its own judge that can help resolve any disputes between the two parties.
• tokens
  • Implements fungible tokens pallet with compatibility with Substrate tokens abstractions
• vesting
  • Provides scheduled balance locking mechanism, in a graded vesting way.

XCM

• xcm-support
  • Provides supporting traits, types and implementations, to support cross-chain message(XCM) integration with ORML modules.
• xcm
  • Provides a way for governance body to dispatch XCM.
• xtokens
  • Provide crosschain token transfer functionality.
  • Used by multiple parachains for their XCM token transfer implementation.

Benchmarking

• bencher
  • Benchmarking tool using cargo bench for benchmarking
• benchmarking
  • Fork of frame-benchmarking in Substrate to allow implement runtime specific benchmarks
• weight-gen
  • Weight meter file generation
• weight-meter
  • A low overhead dynamic weight meter

Example

Checkout orml-workshop for example usage.

Development

Makefile targets

• make check
  • Type check the code, without std feature, excluding tests.
• make check-tests
  • Type check the code, with std feature, including tests.
• make test
  • Run tests.

Cargo.toml

ORML use Cargo.dev.toml to avoid workspace conflicts with project cargo config. To use cargo commands in ORML workspace, create Cargo.toml by running

• cp Cargo.dev.toml Cargo.toml, or
• make Cargo.toml, or
• change the command to make dev-check etc which does the copy. (For the full list of make commands, check Makefile)

Web3 Foundation Grant Project

ORML is part of the bigger Open-Web3-Stack initiative, that is currently under a General Grant from Web3 Foundation. See Application details here. The 1st milestone has been delivered.

Projects using ORML

• If you intend or are using ORML, please add your project here

In alphabetical order

• Acala Network
• Astar Network
• Bifrost Finance
• Bit.Country
• Centrifuge
• ChainX
• Crust
• GameDAO Protocol
• HydraDX
• Interlay and Kintsugi
• KodaDot: MetaPrime Network
• Laminar Chain
• Libra
• Listen
• Manta Network
• Minterest
• OAK
• PolkaFoundry Network
• Setheum Network
• Valiu Liquidity Network
• Zeitgeist
• ZERO Network