ERC721 metadata not showing on OpenSea

Support Contracts
#1

Hello

When trying to add my own metadata (using my-json-server for the moment)

found here: https://my-json-server.typicode.com/robbiekruszynski/devrel-721-metadata/tokens

I seem to be running into an issue on testnet.opeasea getting my information to show

here is my 2_deploy.js

const ERC721PresetMinterPauserAutoId = artifacts.require("ERC721PresetMinterPauserAutoId");

module.exports = function(deployer) {
  deployer.deploy(ERC721PresetMinterPauserAutoId, "DevRel token","DEVREL", "https://my-json-server.typicode.com/robbiekruszynski/devrel-721-metadata/tokens/");
};

then on opeasea Iā€™m seeing

Screen Shot 2021-02-15 at 11.17.27 AM
Screen Shot 2021-02-15 at 11.17.27 AM1321Ɨ575 24.5 KB

yet https://twemoji.maxcdn.com/svg/2615.svg links to the wanted image just fine.

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How to provide metadata for ERC721
#2

It appears that when I run
await nft.baseURI()

my return is still
'https://my-json-server.typicode.com/abcoathup/samplenft/tokens/'

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#3

Hi @robbiek,

I deployed a contract using your migrations script, minted a single token and can see it in OpenSea with an image.

2_deploy.js

// migrations/2_deploy.js
// SPDX-License-Identifier: MIT
const ERC721PresetMinterPauserAutoId = artifacts.require("ERC721PresetMinterPauserAutoId");

module.exports = function(deployer) {
  deployer.deploy(ERC721PresetMinterPauserAutoId, "DevRel token","DEVREL", "https://my-json-server.typicode.com/robbiekruszynski/devrel-721-metadata/tokens/");
};

I suggest you check your migrations script and deploy again as your metadata looks ok.

#4

To see if your MetaData is right you can query your URI by adding the ID of the NFT at the end just like Opensea does.

Opensea will query

https://my-json-server.typicode.com/robbiekruszynski/devrel-721-metadata/tokens/ID

You can test it in the browser by replacing ID with your actual NFT ID and it should output the metadata.

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