force update OS metadata snippet. ref: https://docs.opensea.io/docs/metadata-standards

OSForceMetadata.js

const totalSupply = 1000
const contractAddress = "0x000000000000000000000000000000000000"

for (let i = 0; i < totalSupply ; i++){
    try {
     await fetch(`https://api.opensea.io/api/v1/asset/${contractAddress}/${i}/?force_update=true`)
        console.log(`token id ${i} done`)   
    } catch (error) {
        console.log(error)
    }
}