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print the rarity score for each NFT item #1148

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print the rarity score for each NFT item #1148

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8dbbeaf
print a NFT rarity score
it-is-zods May 3, 2022
1af70b7
Update rarity.js
it-is-zods May 15, 2022
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44 changes: 44 additions & 0 deletions utils/rarity.js
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Original file line number Diff line number Diff line change
Expand Up @@ -69,14 +69,58 @@ for (var layer in rarityData) {
// show two decimal places in percent
rarityData[layer][attribute].occurrence =
`${rarityData[layer][attribute].occurrence} in ${editionSize} editions (${chance} %)`;

rarityData[layer][attribute].chance = chance / 100;
}
}

// print out rarity data
console.log();
console.log("Traits Rarity Data ========");
console.log("===========================");
console.log();
for (var layer in rarityData) {
console.log(`Trait type: ${layer}`);
for (var trait in rarityData[layer]) {
console.log(rarityData[layer][trait]);
}
console.log();
}

// output a sorted list by NFT rarity score
NFTrarity = []
data.forEach((element) => {

score = 0;
element.attributes.forEach((attrib) => {
layer = rarityData[attrib["trait_type"]];
objIndex = layer.findIndex((meta => meta.trait == attrib["value"]));
trait = layer[objIndex];

score = score + 1 / trait.chance;
});

NFTrarity.push({
"edition": element.edition,
"score": score
});
});

console.log("NFT Rarity Ranking ========");
console.log("===========================");
NFTrarity.sort((a, b) => (a.score > b.score) ? -1 : 1);
// console.log(NFTrarity);

scoreFile = 'NftItemsRarityScore.log';
fs.writeFileSync(scoreFile, "NFT Rarity Ranking ======== \n Edition, Score\n");
NFTrarity.forEach((element) => {
line = `${element.edition},${element.score}\n`;
fs.appendFile(scoreFile, line, (err) => {
if (err) {
console.log(err);
}
else {
console.log(element);
}
});
});