This is an implementation of ERC721 in Vyper.
In order to hold, receive, purchase or transfer a Conditional NFT, an address has to also hold an associated Lock from Unlock Protocol.
The purpose of Conditional NFT is to introduce second-order monetisation for exclusive content. Currently, Unlock Protocol grants first-order monetisation by using Locks to limit access to content. We extend this concept by transforming Locks into merely a right or chance to qualify for access or purchase to content.
For example, an artist may issue a limited run of 50 pieces of 12" vinyls, wrapped as a NFT. In order to be able to purchase this NFT, an address has to first have a Lock issued by the artist, thereby rendering the primary NFT one that is conditional upon a Lock.
Original ERC721 code is taken from the official Vyper repository
The following additional extensions have been implemented:
- ERC721Metadata
- ERC721Enumerable
An instance has been deployed on https://cnft.herokuapp.com
We use the Brownie framework for development and deployment. Please refer to the instructions below for installation.
See the (Vyper documentation)[https://vyper.readthedocs.io/en/latest/installing-vyper.html] for build instructions.
We recommend working within a virtual environment whenever using Python for projects. This keeps your dependencies for each project separate and organaized. Instructions for setting up a virual enviornment for your platform can be found in the python docs
Once you have your virtual environment setup and running, install dependencies by running:
pip install -r requirements.txtThis will install all of the required packages we selected within the requirements.txt file.
To deploy the contract on your local instance, run brownie run deploy.py --network development.
For deployment on Rinkeby, replace development with rinkeby and save your Infura project ID as an environment variable.
export WEB3_INFURA_PROJECT_ID=<PROJECT_ID>
To launch the Flask app on your local console, navigate to the project root and run the following commands:
export FLASK_APP=flask_app
export FLASK_DEBUG=True
flask run
- Add ERC20 token for payment
- Toggle whether smart contract also requires a lock based on boolean variable