Learn how to create truly immutable smart contracts (Ethereum / EVM) that can hold all metadata and SVG images on-chain.

0:00:00 – Intro
0:02:35 – Put metadata to struct
0:03:20 – OpenSea standard
0:05:00 – Return JSON meta from contract
0:06:40 – SVG image on-chain
0:11:00 – Testing JSON
0:13:00 – Deploy to Rinkeby testnet
0:14:00 – OpenSea test

Credits to Andy Hartnett for preparing great article and code:

Code: https://gist.github.com/Chmarusso/045ee79fa9a1fae55928a613044c9067

#ethereum #nft #smartcontracts

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