wemintart-contracts

1.0.1 • Public • Published

URI minter template

this is a simple tamplete based off a contract I deployed that worked for my needs. Please understand fully what it does and what it doesn't do before deploying on mainnet. Feel free to reach out to @mimnermosart on twitter or mimnermos@mimnermos.art for questions.

What it does: the contract can grant a minter role to an address, which than is able to mint multiple tokens in the contract by specifing the receiving address and the token URI for metadata. Some manual effort is required to substitute names and whatnot.

What it doesn't do: anything else. Royalties, listing, etc. is all demanded to external platforms. What is tested at the time of writing is just a simple sale on opensea.

This project doesn't come with a website, so minting must be done through etherscan.io after having verified the source code (minting through code is possible I guess, but wasn't tested)

Steps to try it:

  • clone this repository locally
  • install truffle with npm install -g truffle
  • run npm install to install dependencies
  • change inside contracts/URIMinter.sol the contract name and ticker symbol
  • create a .env file containing:
RINKEBY_PKEY="your private key on the rinkeby network"
RINKEBY_RPC_URL="rinkeby url (I used infura)"
MAINNET_PKEY="your mainnet private key (be sure to keep this file locally and set this only when necessary)"
MAINNET_URL="mainnet url (I used infura)"
  • create something like metadata.json for each token you want. Inside there must be a link to the actual artwork of the token
  • pin both the metadata file and the artwork file on ipfs. Either use something https://pinata.cloud or ipfs-desktop
  • run truffle compile

everything should go well, if so you've compiled your contract. Now for deploying it's best to first test it on a test network like rinkeby (only one supported out of the box right now).

  • be sure to have set your rinkeby url and private key in the .env file before proceeding
  • get some test eth from https://www.rinkeby.io/#faucet, use the same address which private key you put in the file
  • run truffle deploy --network rinkeby

Don't worry if you get some error, check when the transaction completes on etherscna.io (the rinkeby one). It should succeed.

Now to verify on etherscan (and then mint):

  • go to your contract on etherscan.io, then click on "Verify and publish" under the contract tab.
  • install truffle-flattener from this repo (main one has an issue currently that breaks with our dependencies)
  • run ./flatten.sh. This creates a file named etherscan-verify.sol
  • in etherscan, select single file verification, 0.8.0 as compiler and paste the content of the file generated earlier where it wants the contract source code.
  • follow what etherscan says until published
  • go again to your contract etherscan page, now you should be able to interact with the contract
  • under "write contract" select the mint function
  • first parameter is the receiving address of the token (usually yours), second one the ipfs hash of the metadata you've pinned earlier with the ipfs:// prefix
  • mint, then visit www.opensea.io/assets//0 and you should see your freshly minted token!

For mainnet do the same you did for rinkeby, except run truffle deploy --network mainnet

I will update this guide to make it better depending on requests, so if there's something you don't get or doesn't work, feel free to open issues or write me!

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