Stats of collection

[Jarsen136]

Requirement

• extends collectionEntitiesConnection resolver or provide a new resolver
• input:

{
    offset
    limit
    where
    orderBy
}

• output:

{
   volume:  xxx, // Total trading turnover
   highestSale: xxx, // Maximum selling price
   totalCount: xxx     // count of nfts in this colleciton
}

[vikiival]

Should the resolver return data per one collection?

[Jarsen136]

Should the resolver return data per one collection?

Yes, I think so

[vikiival]

I would do that as a part of collection schema

[vikiival]

So task is to extend collection to have

type CollectionEntity @entity {
  volume: BigInt!
  highestSale: BigInt!
  floor: BigInt!
  distribution: Int!
  ownerCount: Int!
}

how to modify this data

• volume - updated when buy happens
• highestSale - on buy if price > collection.highestSale
• floor - updated on list and price < collection.floor
• distribution - distinct count of owners per collection minus issuer - do not have simple algo for that
• ownerCount - total count of owners minus issuer

[vikiival]

cc @Matehoo this would imo help

[daiagi]

Hey @vikiival I'm not sure this will help in holders/flippers tabs in collection activity as it requires user centric data and not collection centric

kodadot/nft-gallery#5388 (comment)

please correct me if i'm wrong

[alko89]

• distribution - distinct count of owners per collection minus issuer - do not have simple algo for that

• ownerCount - total count of owners minus issuer

I'm a bit confused about the difference between distribution and ownerCount, distinct count of owners per collection and ownerCount appears to be the same thing in the context of a collection no?

Should the distribution be a new entity with a distribution of NFTs/owner (count of number of NFTs per owner) for a collection?

[vikiival]

Let me make collection example:

nfts = [
  { owner: viki, id: 1 },
  { owner: viki, id: 2 },
  { owner: ales, id: 3 },
  { owner: leo, id: 4 },
  { owner: wao, id: 5 },
]

const onlyOwners = nfts.map(x => x.owner)
const ownerCount = onlyOwners.lenght // 5
const distribution = new Set(onlyOwners).size // 4

[alko89]

🤔 in your example ownerCount would correspond to total NFTs 😅