add hedera (#702)

Author: thelostone-mc

.env.example

@@ -45,6 +45,7 @@ DD_ENV=development
 #LUKSO_TESTNET_RPC_URL
 #METIS_ANDROMEDA_RPC_URL
 #GNOSIS_RPC_URL
+#HEDERA_RPC_URL
 
 #COINGECKO_API_KEY=
 #IPFS_GATEWAYs=[]

fly.toml

@@ -17,7 +17,7 @@ kill_timeout = "5s"
   DEPLOYMENT_ENVIRONMENT = "production"
   ENABLE_RESOURCE_MONITOR = "false"
   ESTIMATES_LINEARQF_WORKER_POOL_SIZE = "10"
-  INDEXED_CHAINS = "mainnet,optimism,fantom,arbitrum,polygon,sepolia,avalanche,avalanche-fuji,scroll,scroll-sepolia,base,zksync-era-mainnet,lukso-mainnet,lukso-testnet,celo-mainnet,celo-testnet,metisAndromeda,gnosis,sei-mainnet"
+  INDEXED_CHAINS = "mainnet,optimism,fantom,arbitrum,polygon,sepolia,avalanche,avalanche-fuji,scroll,scroll-sepolia,base,zksync-era-mainnet,lukso-mainnet,lukso-testnet,celo-mainnet,celo-testnet,metisAndromeda,gnosis,sei-mainnet,hedera"
   LOG_LEVEL = "debug"
   NODE_OPTIONS = "--max-old-space-size=4096"
   PORT = "8080"

src/config.ts

@@ -19,7 +19,8 @@ type CoingeckoSupportedChainId =
   | 1329
   | 42
   | 42220
-  | 1088;
+  | 1088
+  | 295;
 
 const CHAIN_DATA_VERSION = "87";
 const IPFS_DATA_VERSION = "1";
@@ -1828,6 +1829,38 @@ const CHAINS: Chain[] = [
       },
     ],
   },
+  {
+    id: 295,
+    name: "hedera",
+    rpc: rpcUrl
+      .default("https://mainnet.hashio.io/api")
+      .parse(process.env.HEDERA_RPC_URL),
+    pricesFromTimestamp: Date.UTC(2025, 1, 1, 0, 0, 0),
+    tokens: [
+      {
+        code: "HBAR",
+        address: "0x0000000000000000000000000000000000000000",
+        decimals: 8,
+        priceSource: {
+          chainId: 295,
+          address: "0x0000000000000000000000000000000000000000",
+        },
+      },
+    ],
+    subscriptions: [
+      // Allo V2
+      {
+        contractName: "AlloV2/Registry/V1",
+        address: "0x4aacca72145e1df2aec137e1f3c5e3d75db8b5f3",
+        fromBlock: 75239000,
+      },
+      {
+        contractName: "AlloV2/Allo/V1",
+        address: "0x1133eA7Af70876e64665ecD07C0A0476d09465a1",
+        fromBlock: 75239000,
+      },
+    ],
+  },
 ];
 
 export const getDecimalsForToken = (

src/prices/coinGecko.ts

@@ -17,6 +17,7 @@ const platforms: { [key: number]: string } = {
   42220: "celo",
   1088: "metis",
   100: "xdai",
+  295: "hedera-hashgraph",
 };
 
 const nativeTokens: { [key: number]: string } = {
@@ -31,6 +32,7 @@ const nativeTokens: { [key: number]: string } = {
   42220: "celo",
   1088: "metis-token",
   100: "xdai",
+  295: "hedera-hashgraph",
 };
 
 type TimestampInMs = number;