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https://github.com/hiddentao/onchain-nfts
Smart contracts for testing the compatibility of various wallets, portfolio managers and marketplaces with on-chain NFTs.
https://github.com/hiddentao/onchain-nfts
Last synced: 8 days ago
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Smart contracts for testing the compatibility of various wallets, portfolio managers and marketplaces with on-chain NFTs.
- Host: GitHub
- URL: https://github.com/hiddentao/onchain-nfts
- Owner: hiddentao
- License: gpl-3.0
- Created: 2024-02-17T06:16:21.000Z (9 months ago)
- Default Branch: main
- Last Pushed: 2024-02-19T10:43:54.000Z (9 months ago)
- Last Synced: 2024-02-20T07:28:59.872Z (9 months ago)
- Language: Solidity
- Homepage:
- Size: 58.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
Awesome Lists containing this project
README
# Onchain NFTs
Smart contracts for testing the compatibility of various wallets, portfolio managers and marketplaces with on-chain NFTs. In particular, this checks for ERC721 `tokenURI()` functions returning data URIs wherein all the metadata is stored on-chain, including the image data.
The metadata looks something like:
```json
{
"name": "Onchain #1",
"description": "image prop - PNG data URI (big - 4286 bytes)",
"attributes": [
{
"display_type": "date",
"trait_type": "When",
"value": "2024-09-09"
}
],
"image": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAlgAAAJYCAIAAAAxBA+LAAAK2UlEQVR4nOzXvasQ1B/H8d8VxeHX0D... (3802 bytes total)"
}
```
For preliminary findings, see:
* https://twitter.com/hiddentao/status/1759499716583162210
* https://warpcast.com/hiddentao/0xa4e2a58c
Example gas costs:
* Calling `setTokenURI()` with JSON metadata containing 3802 byte PNG image: `0.074858856538066125 ETH (497077 gas * 150.598109625 gwei)`
## On-chain addresses
* Polygon: [0xB4D3973637369692981C7C40f7a733a04b2D0E9c](https://polygonscan.com/address/0xB4D3973637369692981C7C40f7a733a04b2D0E9c)
* See the NFTs: https://polygon.nftscan.com/0xB4D3973637369692981C7C40f7a733a04b2D0E9c
## Developer guide
Install pre-requisites:
* [Foundry](https://book.getfoundry.sh/)
* [Bun](https://bun.sh/)
Then run:
```shell
$ bun i
$ bun prepare
```
To compile the contracts:
```shell
$ bun compile
```
To run a local devnet:
```shell
$ bun devnet
```
### Deployment - local
To deploy contracts:
```shell
$ bun local:dep
```
To set values _(substitute the correct `CONTRACT_ADDRESS` value)_:
```shell
$ CONTRACT_ADDRESS="0x.." bun local:set
```
### Deployment - public network
To deploy contracts:
```shell
$ export PRIVATE_KEY="0x..."
$ export RPC_URL="http://..."
$ export CHAIN_ID="..."
$ bun public:dep
```
To set values _(substitute the correct `CONTRACT_ADDRESS` value)_:
```shell
$ CONTRACT_ADDRESS="0x.." bun public:set
```
### Debugging
Useful tools for debugging NFT metadata and testing images:
* https://viewer.etovass.xyz/ (github: https://github.com/etovass/svg-nft-tutorials/tree/main/nextjs-tooling/nft-viewer)
* https://polygon-nfts.com/ - view NFTs on polygon by contract address, etc.
* https://nftscan.com/ - multi-chain NFT viewer
## License
GPLv3 - see [LICENSE.md](LICENSE.md)
Naym-Coin smart contracts
Copyright (C) 2024 [Ramesh Nair](https://hiddentao.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .