Foundations
Compose is a new approach to smart contract development that changes how developers build and deploy smart contract systems. This section introduces the core concepts that make Compose unique.
Articles in this section
Diamond Smart Contracts
A diamond contract is made up of multiple parts. It exists at one address and holds all storage, but uses separate smart contracts called facets to provide its functionality.
On-chain Smart Contracts
Compose provides reusable on-chain contracts that already exist on blockchains—eliminating the need to deploy or manage them yourself.
Reusable Smart Contracts
Build new systems from existing on-chain contracts through diamond-based architecture. Deploy only a small diamond that connects to existing facets.
Composable Smart Contracts
Facets interoperate seamlessly inside the same diamond. Mix, match, and reuse logic across projects without modifying or redeploying code.
Custom Functionality: Compose Your Own Facets
Build your own facets that work seamlessly with existing Compose facets using shared storage layouts and internal logic through Solidity modules.
Understanding Facets and Modules
Learn how facets and modules work together through shared storage to build composable systems.
Don't rush through these concepts. Taking time to understand the foundations will make everything else much easier.
Compose is still in early development and currently available only to contributors. It is not production-ready — use it in test or development environments only.