ERC-1155: Core and Platform Integrations — Forge College

Why build a full ERC-1155 platform now? Multi-token standards power marketplaces, custodial flows, and composable NFTs — but designs must be converted into secure, testable contracts before production.

What you'll learn
In this guided build you will implement a production-ready ERC-1155 core contract with safe mint, batch mint, safe burn, and batch burn operations that follow a concrete module specification. You will integrate role-based permissions so only designated minters and platform operators can act on specific token classes, and you will write unit tests asserting those boundaries. You will also build two minimal platform components: a Token Registry that maps token classes to metadata and minting permissions, and a Platform Adapter that demonstrates cross-component multi-token transfers while asserting ownership and emitted events. The exercise emphasizes test-driven validation and preserving security invariants (access control, reentrancy boundaries, and event semantics).

Who this is for
Advanced Solidity engineers and blockchain architects who already understand ERC-1155 basics, smart contract testing, and threat modeling. Expect to use unit testing tools (Hardhat, Foundry, or similar) and to iterate on repository scaffolds and tests.

Key topics covered
- Implementing Core1155.sol with safe mint, batch mint, safe burn, and batch burn
- Role-based access control patterns for minters and platform operators
- TokenRegistry.sol: token class metadata and minting permissions mapping
- PlatformAdapter.sol: cross-component multi-token transfer flows and event assertions
- Test-driven validation: unit tests to verify mint/transfer/burn flows and security invariants
- Security considerations: reentrancy boundaries, privileged roles, and audit-ready checklists

Ready to build the artifact: code, tests, and a short README that feeds into the capstone assembly. Learn by doing and produce a verifiable increment you can reuse or audit.

https://www.forge.college/

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