Get NFT Metadata by IPFS url or ARC id

ARCs
1

How can I go about getting a NFT’s metadata, like image link, from its IPFS url or its ARC id, both of which I have. I want to retrieve this info in javascript, fetch does not work for IPFS addresses. Let me know if anyone knows how to solve this, thanks!

2

You need to use an IPFS gateway.
See IPFS Gateway | IPFS Docs

For example, for this ARC69 NFT: Algorand
the URL of the asset is:
ipfs://QmeRgH3a5BYXer6X3KwEpFedTFXz8svSpfC84FvRR3MXSd

and you can access it through the gateway, such as:

800×800 101 KB

Important note: Public gateways need to be trusted by you: IPFS Gateway | IPFS Docs

3

@fabrice can you elaborate on how you constructed the URL for the asset given the NFT information you linked to in AlgoExplorer please?

4

@zorev To download the png file and rename the file mngo.png:

$ curl -G https://ipfs.io/ipfs/QmeRgH3a5BYXer6X3KwEpFedTFXz8svSpfC84FvRR3MXSd --output mngo.png

To get the cid hash of the file you downloaded and renamed mngo.png, you need to use Kubo CLI | IPFS Docs

$ ipfs add --cid-version 0  --hash sha2-256 -q -n mngo.png

output will be QmeRgH3a5BYXer6X3KwEpFedTFXz8svSpfC84FvRR3MXSd

--cid-version 0 --hash sha2-256 are default values for ipfs add. I just added them to make it clearer
-n is here to display the generated hash without pining the file to your IPFS node.

You can also find more information here: Pin files | IPFS Docs