Created
January 1, 2022 00:17
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Download all CNFT images from an NFT Collection via Node.js
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import { BlockFrostAPI } from "@blockfrost/blockfrost-js" | |
import download from "download" | |
const API = new BlockFrostAPI({ | |
projectId: "YOUR_BLOCKFROST_API_KEY", // see: https://blockfrost.io | |
}) | |
try { | |
const assets = await API.assetsPolicyByIdAll( | |
"POLICY_ID" | |
) | |
const start = 0 | |
const batchSize = 10 | |
const total = 10001 | |
for (let i = start; i < total; i += batchSize) { | |
console.log(i + 1, i + batchSize) | |
const assets10 = assets.slice(i + 1, i + batchSize) | |
const ipfsLinks = await Promise.all( | |
assets10.map(async (asset) => { | |
const assetData = await API.assetsById(asset.asset) | |
const ipfsId = assetData?.onchain_metadata?.image?.split("ipfs://")?.[1] | |
return { | |
id: assetData?.onchain_metadata?.name?.split("GOAT Tribe ")?.[1], | |
image: `https://infura-ipfs.io/ipfs/${ipfsId}`, | |
} | |
}) | |
) | |
const filterLinks = ipfsLinks.filter((item) => !!item.id) | |
console.log(filterLinks) | |
;(async () => { | |
await Promise.all( | |
filterLinks.map((link) => | |
download(link?.image, "./images", { filename: `${link.id}.png` }) | |
) | |
) | |
})() | |
// wait a few seconds to not overload max requests | |
await new Promise((resolve) => setTimeout(resolve, 4000)) | |
} | |
console.log("done") | |
} catch (err) { | |
console.log("error", err) | |
} |
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