Merge pull request #318 from pedromcunha/master

Add Relay Bridge

Author: vrtnd

src/adapters/index.ts

@@ -75,6 +75,7 @@ import hyperlane from "./hyperlane";
 import wormhole from "./wormhole";
 import thresholdnetwork from "./threshold-network";
 import zircuit from "./zircuit";
+import relay from "./relay";
 import hyperliquid from "./hyperliquid";
 import flyover from "./rootstock-flyover";
 
@@ -155,6 +156,7 @@ export default {
   wormhole,
   thresholdnetwork,
   zircuit,
+  relay,
   hyperliquid,
   flyover
 } as {

src/adapters/relay/index.ts

@@ -0,0 +1,218 @@
+import { BridgeAdapter } from "../../helpers/bridgeAdapter.type";
+import fetch from "node-fetch";
+import { EventData } from "../../utils/types";
+import { RelayRequestsResponse } from "./type";
+const retry = require("async-retry");
+
+/**
+ * Relay is a cross-chain payments system that enables low cost instant bridging and cross-chain execution.
+ * Contract addresses: https://docs.relay.link/resources/contract-addresses
+ *
+ *
+ */
+
+const startingBlocks: Record<string, number> = {
+  1: 18976112,
+  10: 114647896,
+  56: 39739873,
+  100: 33619680,
+  137: 55172593,
+  185: 3417903,
+  288: 2353048,
+  324: 25006838,
+  360: 2691201,
+  480: 3466510,
+  690: 254553,
+  1101: 12491343,
+  1135: 761002,
+  1329: 118912096,
+  2741: 4116,
+  2911: 2136055,
+  4321: 138647,
+  5000: 72911632,
+  5112: 1462668,
+  7560: 896262,
+  8333: 144055,
+  8453: 9046270,
+  17071: 58343,
+  33139: 636958,
+  33979: 238923,
+  34443: 7297896,
+  42161: 169028419,
+  42170: 38963884,
+  43114: 44583244,
+  55244: 30,
+  57073: 275058,
+  59144: 1814719,
+  60808: 275964,
+  70700: 19,
+  70701: 1543,
+  81457: 216675,
+  534352: 5560094,
+  543210: 1282,
+  660279: 4759873,
+  984122: 2655107,
+  7777777: 9094029,
+  8253038: 865885,
+  666666666: 1310814,
+  792703809: 279758248,
+  888888888: 1278785,
+  1380012617: 205727,
+};
+
+const convertRequestToEvent = (
+  request: NonNullable<RelayRequestsResponse["requests"]>["0"]
+): { deposit?: EventData; withdraw?: EventData; depositChainId?: number; withdrawChainId?: number } => {
+  const deposit = request.data?.metadata?.currencyIn;
+  const withdraw = request.data?.metadata?.currencyOut;
+
+  const depositTx = request.data?.inTxs?.[0];
+  const withdrawTx = request.data?.outTxs?.[0];
+
+  return {
+    depositChainId: depositTx?.chainId,
+    deposit:
+      depositTx && depositTx.data && deposit
+        ? {
+            blockNumber: depositTx.block!,
+            txHash: depositTx.hash as string,
+            timestamp: depositTx.timestamp! * 1000,
+            from: (depositTx.data as any).from
+              ? (depositTx.data as any).from
+              : depositTx.data
+              ? (depositTx.data as any).signer
+              : undefined,
+            to: (depositTx.data as any).to
+              ? (depositTx.data as any).to
+              : withdrawTx?.data
+              ? (withdrawTx.data as any).signer
+              : undefined,
+            token: deposit?.currency?.address!,
+            amount: deposit?.amountUsd as any,
+            isDeposit: true,
+            isUSDVolume: true,
+          }
+        : undefined,
+    withdrawChainId: withdrawTx?.chainId,
+    withdraw:
+      withdrawTx && withdrawTx.data && withdraw
+        ? {
+            blockNumber: withdrawTx.block!,
+            txHash: withdrawTx.hash!,
+            timestamp: withdrawTx.timestamp! * 1000,
+            from: (withdrawTx.data as any).from
+              ? (withdrawTx.data as any).from
+              : withdrawTx.data
+              ? (withdrawTx.data as any).signer
+              : undefined,
+            to: (withdrawTx.data as any).to ? (withdrawTx.data as any).to : request.data?.metadata?.recipient,
+            token: withdraw?.currency?.address!,
+            amount: withdraw?.amountUsd as any,
+            isDeposit: false,
+            isUSDVolume: true,
+          }
+        : undefined,
+  };
+};
+
+const fetchRequests = async (
+  chainId: number,
+  fromBlock: number,
+  toBlock: number,
+  continuation?: string
+): Promise<RelayRequestsResponse> => {
+  let url = `https://api.relay.link/requests/v2?chainId=${chainId}&startBlock=${fromBlock}&endBlock=${toBlock}`;
+
+  if (continuation) {
+    url = `${url}&continuation=${continuation}`;
+  }
+  return retry(() => fetch(url).then((res) => res.json()));
+};
+
+const fetchAllRequests = async (
+  chainId: number,
+  fromBlock: number,
+  toBlock: number
+): Promise<RelayRequestsResponse["requests"]> => {
+  let allRequests: RelayRequestsResponse["requests"] = [];
+  const response = await fetchRequests(chainId, fromBlock, toBlock);
+  allRequests = [...(response.requests ?? [])];
+  let continuation = response.continuation;
+  let maxRequests = 10000;
+  let requestCount = 0;
+  while (continuation !== undefined && requestCount < maxRequests) {
+    const response = await fetchRequests(chainId, fromBlock, toBlock, continuation);
+    continuation = response.continuation;
+    allRequests = [...allRequests, ...(response.requests ?? [])];
+  }
+  return allRequests;
+};
+
+const constructParams = (chainId: number) => {
+  return async (fromBlock: number, toBlock: number): Promise<EventData[]> => {
+    //Performance optimization to limit empty requests
+    const startingBlock = startingBlocks[chainId];
+    if (startingBlock !== undefined && toBlock < startingBlock) {
+      return [];
+    }
+    const requests = await fetchAllRequests(chainId, fromBlock, toBlock);
+    const events: EventData[] = [];
+    requests?.forEach((request) => {
+      const event = convertRequestToEvent(request);
+      if (event.depositChainId === chainId && event.deposit) {
+        events.push(event.deposit);
+      }
+      if (event.withdrawChainId === chainId && event.withdraw) {
+        events.push(event.withdraw);
+      }
+    });
+    return events;
+  };
+};
+
+const adapter: BridgeAdapter = {
+  ethereum: constructParams(1),
+  optimism: constructParams(10),
+  bnb: constructParams(56),
+  gnosis: constructParams(100),
+  polygon: constructParams(137),
+  mint: constructParams(185),
+  boba: constructParams(288),
+  zksync: constructParams(324),
+  shape: constructParams(360),
+  "world-chain": constructParams(480),
+  redstone: constructParams(690),
+  "polygon-zkevm": constructParams(1101),
+  lisk: constructParams(1135),
+  sei: constructParams(1329),
+  hychain: constructParams(2911),
+  mantle: constructParams(5000),
+  ham: constructParams(5112),
+  cyber: constructParams(7560),
+  B3: constructParams(8333),
+  base: constructParams(8453),
+  arbitrum: constructParams(42161),
+  "arbitrum-nova": constructParams(42170),
+  avalanche: constructParams(43114),
+  superposition: constructParams(55244),
+  linea: constructParams(59144),
+  bob: constructParams(60808),
+  apex: constructParams(70700),
+  boss: constructParams(70701),
+  blast: constructParams(81457),
+  scroll: constructParams(534352),
+  "zero-network": constructParams(543210),
+  xai: constructParams(660279),
+  forma: constructParams(984122),
+  solana: constructParams(792703809),
+  ancient8: constructParams(888888888),
+  rari: constructParams(1380012617),
+  bitcoin: constructParams(8253038),
+  degen: constructParams(666666666),
+  funki: constructParams(33979),
+  mode: constructParams(34443),
+  "proof-of-play": constructParams(70700),
+  "proof-of-play-boss": constructParams(70701),
+};
+
+export default adapter;