ERC-1155
Pros
- Allows for the creation of multiple types of tokens within a single contract.
- Supports both fungible and non-fungible tokens.
- More efficient and cost-effective for creating a wide range of NFTs.
Cons
- Relatively new and complex standard.
- Limited support from Ethereum wallets and exchanges.
- Requires advanced development skills to implement.
- Using Hardhat Intro
We'll use a contract based on the OpenZeppelin library’s [ERC-1155 implementation]().
a) First, install the Open Zeppelin library in order to inherit its classes:
b) Next, create a file named NFT_1155.sol under the contracts folder.
c) Lastly, add the following smart contract to NFT_1155.sol file.
Note that we have named our contract NFT_1155, this can be any name. The name will be important in the next step.
In this example, we will use Ether.js
4. Set environment variables with dotenv
- Install dotenv
Keep Your Private Keys Secret Private keys must be kept secret and not committed to any code repository. In the example of this tutorial, the .env file should be added to your .gitignore file and kept local. For example, see MyCrypto's Protecting Yourself and Your Funds guide.
- Create a .gitignore file
A great example of a Solidity .gitignore file can be found here
- Create an .env file n your project's root folder, and set environment variables in the file as follows
- Intro to Infura
- MetaMask Wallet Setup
To make sure everything is working so far, let’s compile our contract:
a) Navigate to the scripts folder and create a new file called deploy_NFT_1155.js
b) Add the below code
- The task will execute the scripts in the scripts folder and saves the contract deployments to disk. Each deployment is saved into the deployments folder for the specific network.
| Testnet | Mainnet |
Explorer URL |
Paste your contract address into the search bar.
Get your contract address in 2 ways:
- Console.log() output Contract deployed to address: contractNumber
- In deployments/palm_testnet/NFT_1155.json or deployments/palm_mainnet/NFT_1155.json where you will also find the ABI (Application Binary Interface) information.
You will see something like this upon successful deployment 👇
- More ways to verify
Using the Smart Contract you just deployed you can now Mint NFTs with Hardhat
