Curio Cards subgraph

This is a subgraph (index) of all Curio Cards holdings.

The subgraph has been deployed at https://thegraph.com/explorer/subgraph/fafrd/curio-cards

Update- I recommend using the new subgraph instead!

There's a newer, more optimized subgraph at https://github.com/graphrica/CurioCard-Subgraph/, built thanks to graphrica!

This new subgraph is hosted at https://thegraph.com/explorer/subgraph?id=JBnWrv9pvBvSi2pUZzba3VweGBTde6s44QvsDABP47Gt&view=Overview

How the indexing works

First, take a look at schema.graphql. This defines the datatypes stored as a result of the indexing. CardHolder is the main type, it contains the id (address) and holdings (as an array of CardBalances). CardBalances is a simple pair between card # and the balance thereof.

The indexing logic then happens in src/mapping.ts. handleTransferSingle fires in response to the contract emitting a TransferSingle event. It will calculate the updated card holdings for the sender and recipient and call .save() to store these updated entries.

How to use the api

Querying all holdings for a specific address

query:

{
  cardHolders(where: { id: "0x010edafa8a3c464413a680a1f6a7115b4ee4c74d" }) {
    id
    holdings {
      cardNumber
      balance
    }
  }
}

response:

{
  "data": {
    "cardHolders": [
      {
        "holdings": [
          {
            "balance": "2",
            "cardNumber": "13"
          },
          {
            "balance": "1",
            "cardNumber": "26"
          },
          {
            "balance": "2",
            "cardNumber": "9"
          }
        ],
        "id": "0x010edafa8a3c464413a680a1f6a7115b4ee4c74d"
      }
    ]
  }
}

Querying all holders who hold >25 unique cards

query:

{
  cardHolders(where: { uniqueCards_gt: 25 }) {
    id
    uniqueCards
  }
}

response:

{
  "data": {
    "cardHolders": [
      {
        "id": "0x518e5a942ed7db4b45e9a491ce318373346db240",
        "uniqueCards": 30
      },
      {
        "id": "0x53d7b6b2fab64f797e635af3dfc0125d46f04a15",
        "uniqueCards": 30
      },
      {
        "id": "0x53f46bfbecb075b4feb3bce6828b9095e630d371",
        "uniqueCards": 30
      },
      {
        "id": "0x97575aac6912233403e9b8935e980dec40c55548",
        "uniqueCards": 27
      },
      {
        "id": "0xb9d9baa174702596fac7adcab58325c741f2ea6b",
        "uniqueCards": 30
      },
      {
        "id": "0xd402514d2fec96df7294cc53cfbe756e5b761f03",
        "uniqueCards": 29
      },
      {
        "id": "0xe6a9d0539fabe0fda237c3c4bafeae2042b06e67",
        "uniqueCards": 30
      }
    ]
  }
}