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javascriptethereumweb3jsipfs

Is Reading JSON from IPFS impossible?

I'm attempting to get the JSON object from a known IPFS link. When I use a function like $.getJSON() or node-fetch I am greeted with an error telling me I can only use HTTP. I've searched around for hours now and found nothing on this.

Example IPFS link: ipfs://bafybeignop35wemk2eu2z34qurwusjeuri6unpyzrzeetmxs4hrwksq7dq/?filename=tokenURI.json

Solution

  • That function will not work through the IPFS protocol ipfs://. The quickest and dirtiest way to get that JSON file is to use a trusted public gateway.

    You'll find the list of public gateways via the link below.
    https://ipfs.github.io/public-gateway-checker/

    The most important bit of information in that link is your CID that might refer to a folder or a single file. You can link to your JSON file with that CID using any of these public gateways.

    e.g.; https://ipfs.io/ipfs/bafybeignop35wemk2eu2z34qurwusjeuri6unpyzrzeetmxs4hrwksq7dq/?filename=tokenURI.json

    Please note that these gateways are not there to use in any production environment. They usually come with restrictions such as rate-limiting.

    You can read more here:
    https://docs.ipfs.io/concepts/ipfs-gateway/#can-websites-rely-on-the-ipfs-io-gateway-for-hosting

    I also recommend you this article they have, you'll better understand the whole concept.
    https://docs.ipfs.io/concepts/ipfs-gateway/#gateway-providers