Crowdfund

Disclaimer

⚠️⚠️ This contract is not audited. Using it on production is strongly advised against. ⚠️⚠️

This is a structured crowdfunding contract with the following requirements:

The project owner initializes the contract, and is the sole address with withdrawal privileges.
The fundraising goal should be set at the time of contract initialization (via the factory contract).
The project owner is only allowed to withdraw the funds when the project is successful (i.e fundraising goals achieved).
The project owner is allowed to cancel the project as long as it wasn't already successful.
The contributors are allowed to contribute as long as the project is active (i.e neither cancelled nor successful).
The project will expire - and therefore fail - if the target is not achieved within 30 days. This is a configurable constant.
Once a project fails (either through cancellation or expiry), project contributors are entitled to refunds.
Project contributors are not entitled to a refund on an ongoing or a successful project.
Project contributors are entitled to one contribution badge NFT, per each 1 ETH they contribute.

This project uses the factory pattern. ProjectFactory.sol contract is deployed once. Project owners who want to deploy their own crowdfunding projects can use the create() function on the ProjectFactory.sol contract.
The core project logic lives inside the Project.sol contract.
This project has an extensive unit test suite, located under ./test/crowdfundr.test.ts. You will see a total of 54 passing tests.