I have a question, I managed to deploy an NFT721 contract on Rinkeby, following your steps I also succeded in having the image show up on OpenSea … Since it’s a test token, I m trying to change the datas stored in the JSON files to which the URI points to. I changed the image, i see the JSON file updated, but there is no sign of change in the OpenSea and in the get asset page : https://rinkeby-api.opensea.io/asset/0x375DF763cd7b87E3FfB8eFAD812AAe088553664c/1/
I am wondering if there is some actions one should do in order to update the JSON file … my ultimate goal is to have something showing up in Metamask, would love to be able to have an mp3 player in the metamask collectible display =)
here the NFT on OpenSea https://testnets.opensea.io/assets/0x375df763cd7b87e3ffb8efad812aae088553664c/1
Hi @giacomogagliano,
I believe you can refresh using force_update on the API:
https://testnets-api.opensea.io/api/v1/asset/0x375df763cd7b87e3ffb8efad812aae088553664c/1/?force_update=true
There is an issue with your metadata:
https://rinkeby-api.opensea.io/asset/0x375DF763cd7b87E3FfB8eFAD812AAe088553664c/1/validate/
Yeah, I actually forced the issue to see it there was an update in the validate page 
. Now the error is fixed 
.
Actually now this page is showing the right urls : https://rinkeby-api.opensea.io/asset/0x375DF763cd7b87E3FfB8eFAD812AAe088553664c/1/ .
did your force_update work? I mean did it update thanks to the force_update you did on the page?
I did a force_update and that appeared to work.
Though there still looks like an issue with your metadata potentially:
I recommend getting in contact with OpenSea to see how they support audio metadata.
Hey @abcoathup , do you know if there is actually something to do in order to validate the baseURI datas? I think I managed to get some audio from the NFT page on OPENSEA (not yet from Metamask, not eve the Image), but There seems to be missing the collection description, I imagine that those datas should be the "description" inside the json metadatas file. I tried to validate the URL without “…/1” at the end of it, but it didn’t work out!
Hi @giacomogagliano,
It looks like you have it working. Well done.
https://rinkeby-api.opensea.io/asset/0x375DF763cd7b87E3FfB8eFAD812AAe088553664c/1
I’m having a similar issue where testnet opensea is not properly displaying my token. Even though I can see it was minted properly and has a valid metadata JSON. Please advise.
Here is the broken token.
Hi @Joel_Codes ! Didn't you finally succeed in solving this issue by any chance? I'm having same problems on Rinkeby and my assests pass validation but OpenSea just doesn't pick up metadata details.
Hi. Can I please get a force update for my collection Rockmans Generative NFTs?
do you know how I can refresh a whole collection of 6000 NFTs metadata automatically?
Sorry buddy, I´m so confused when I want to get the admin control how I access to it? Where is the logic, admin and data?
Please help me
