Registry indexer. hash-data collection

subgraphs/WagyuRegistry/abis/WagyuRegistry.json

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+[
+  { "inputs": [], "stateMutability": "nonpayable", "type": "constructor" },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "previousOwner",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "newOwner",
+        "type": "address"
+      }
+    ],
+    "name": "OwnershipTransferred",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "internalType": "string",
+        "name": "_hash",
+        "type": "string"
+      }
+    ],
+    "name": "TokenAdded",
+    "type": "event"
+  },
+  {
+    "inputs": [{ "internalType": "string", "name": "_hash", "type": "string" }],
+    "name": "addToken",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "owner",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "renounceOwnership",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "newOwner", "type": "address" }
+    ],
+    "name": "transferOwnership",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  }
+]

subgraphs/WagyuRegistry/package.json

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+{
+  "name": "WagyuRegistry",
+  "license": "UNLICENSED",
+  "scripts": {
+    "codegen": "graph codegen",
+    "build": "graph build",
+    "deploy": "graph deploy --node https://api.studio.thegraph.com/deploy/ WagyuRegistry",
+    "create-local": "graph create --node http://localhost:8020/ WagyuRegistry",
+    "remove-local": "graph remove --node http://localhost:8020/ WagyuRegistry",
+    "deploy-local": "graph deploy --node http://localhost:8020/ --ipfs http://localhost:5001 WagyuRegistry"
+  },
+  "dependencies": {
+    "@graphprotocol/graph-cli": "0.24.0",
+    "@graphprotocol/graph-ts": "0.24.0",
+    "node-fetch": "^3.1.0"
+  }
+}

subgraphs/WagyuRegistry/schema.graphql

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+type Token @entity {
+  id: ID!
+  hash: String
+  name: String!
+  symbol: String!
+  address: String!
+  decimals: String!
+  chainId: String!
+  logoURI: String
+  acttive: Boolean
+}

subgraphs/WagyuRegistry/src/mapping.ts

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+import {Value,JSONValue, BigInt, BigDecimal, ipfs, json, Bytes, log } from "@graphprotocol/graph-ts"
+
+import {
+  TokenAdded
+} from "../generated/WagyuRegistry/WagyuRegistry"
+import { Token } from "../generated/schema"
+
+
+
+
+export function handleTokenAdded(event: TokenAdded): void {
+
+
+
+let data = ipfs.cat(event.params._hash);
+
+  if (!data || (data as Bytes).length < 1) {
+    log.warning('JSON DATA FROM IPFS IS EMPTY {}', [event.params._hash]);
+    return;
+}
+
+let jsonData = json.fromBytes(data as Bytes);
+  if (jsonData.isNull()) {
+    log.warning('JSON DATA FROM IPFS IS NULL {}', [event.params._hash]);
+    return;
+  }
+
+
+
+let token = new Token(event.params._hash);
+token.hash=event.params._hash;
+
+token.name=jsonData.toObject().get('tokenName').toString();
+token.symbol=jsonData.toObject().get('tokenSymbol').toString();
+token.address=jsonData.toObject().get('tokenAddress').toString();
+token.chainId=jsonData.toObject().get('chainId').toString();
+token.decimals=jsonData.toObject().get('tokenDecimals').toString();
+
+token.logoURI=jsonData.toObject().get('icon').toString();
+
+token.save();
+
+
+
+}

subgraphs/WagyuRegistry/subgraph.yaml

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+specVersion: 0.0.2
+schema:
+  file: ./schema.graphql
+dataSources:
+  - kind: ethereum/contract
+    name: WagyuRegistry
+    network: velas
+    source:
+      address: "0xa39D26ac57930604Aaeb4Ad6353628Ab5b24Fc47"
+      abi: WagyuRegistry
+      startBlock: 4843618
+    mapping:
+      kind: ethereum/events
+      apiVersion: 0.0.4
+      language: wasm/assemblyscript
+      entities:
+        - TokenAdded
+      abis:
+        - name: WagyuRegistry
+          file: ./abis/WagyuRegistry.json
+      eventHandlers:
+        - event: TokenAdded(string)
+          handler: handleTokenAdded
+      file: ./src/mapping.ts

subgraphs/WagyuRegistry/tsconfig.json

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+{
+  "extends": "@graphprotocol/graph-ts/types/tsconfig.base.json",
+  "include": ["src"]
+}