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.github/workflows/ci-test-unit.yml

@@ -19,6 +19,7 @@ jobs:
       ALCHEMY_API_KEY: ${{ secrets.ALCHEMY_API_KEY }}
       DRPC_API_KEY: "test"
       INFURA_API_KEY: "test"
+      FILECOIN_API_KEY: "test"
 
       INDEXER_ENVIRONMENT: "test"
 

eslint.config.js

@@ -4,4 +4,9 @@ import tseslint from "typescript-eslint";
 export default tseslint.config(
   eslint.configs.recommended,
   ...tseslint.configs.strict,
+  {
+    rules: {
+      "@typescript-eslint/no-extraneous-class": "off",
+    },
+  },
 );

package.json

@@ -28,9 +28,9 @@
   "dependencies": {
     "@graphql-tools/merge": "^9.0.3",
     "@graphql-yoga/plugin-response-cache": "^3.5.0",
-    "@hypercerts-org/contracts": "2.0.0-alpha.11",
+    "@hypercerts-org/contracts": "2.0.0-alpha.12",
     "@hypercerts-org/marketplace-sdk": "0.3.37",
-    "@hypercerts-org/sdk": "2.5.0-beta.3",
+    "@hypercerts-org/sdk": "2.5.0-beta.6",
     "@ipld/car": "^5.2.5",
     "@openzeppelin/merkle-tree": "^1.0.5",
     "@safe-global/api-kit": "^2.5.4",

src/client/chainFactory.ts

@@ -0,0 +1,42 @@
+import {
+  indexerEnvironment as environment,
+  Environment,
+} from "../utils/constants.js";
+import { Chain } from "viem";
+import {
+  arbitrum,
+  arbitrumSepolia,
+  base,
+  baseSepolia,
+  celo,
+  filecoin,
+  filecoinCalibration,
+  optimism,
+  sepolia,
+} from "viem/chains";
+
+export class ChainFactory {
+  static getChain(chainId: number): Chain {
+    const chains: Record<number, Chain> = {
+      10: optimism,
+      314: filecoin,
+      8453: base,
+      42161: arbitrum,
+      42220: celo,
+      84532: baseSepolia,
+      314159: filecoinCalibration,
+      421614: arbitrumSepolia,
+      11155111: sepolia,
+    };
+
+    const chain = chains[chainId];
+    if (!chain) throw new Error(`Unsupported chain ID: ${chainId}`);
+    return chain;
+  }
+
+  static getSupportedChains(): number[] {
+    return environment === Environment.TEST
+      ? [84532, 314159, 421614, 11155111]
+      : [10, 8453, 42220, 42161, 314];
+  }
+}

src/client/evmClient.ts

@@ -0,0 +1,123 @@
+import {
+  alchemyApiKey,
+  drpcApiPkey,
+  infuraApiKey,
+} from "../utils/constants.js";
+import { PublicClient, createPublicClient, fallback } from "viem";
+import { ChainFactory } from "./chainFactory.js";
+import { RpcClientFactory } from "./rpcClientFactory.js";
+import { JsonRpcProvider } from "ethers";
+
+interface RpcProvider {
+  getUrl(chainId: number): string | undefined;
+}
+
+class AlchemyProvider implements RpcProvider {
+  getUrl(chainId: number): string | undefined {
+    const urls: Record<number, string> = {
+      10: `https://opt-mainnet.g.alchemy.com/v2/${alchemyApiKey}`,
+      8453: `https://base-mainnet.g.alchemy.com/v2/${alchemyApiKey}`,
+      42161: `https://arb-mainnet.g.alchemy.com/v2/${alchemyApiKey}`,
+      421614: `https://arb-sepolia.g.alchemy.com/v2/${alchemyApiKey}`,
+      84532: `https://base-sepolia.g.alchemy.com/v2/${alchemyApiKey}`,
+      11155111: `https://eth-sepolia.g.alchemy.com/v2/${alchemyApiKey}`,
+    };
+    return urls[chainId];
+  }
+}
+
+class InfuraProvider implements RpcProvider {
+  getUrl(chainId: number): string | undefined {
+    const urls: Record<number, string> = {
+      10: `https://optimism-mainnet.infura.io/v3/${infuraApiKey}`,
+      42220: `https://celo-mainnet.infura.io/v3/${infuraApiKey}`,
+      42161: `https://arbitrum-mainnet.infura.io/v3/${infuraApiKey}`,
+      421614: `https://arbitrum-sepolia.infura.io/v3/${infuraApiKey}`,
+    };
+    return urls[chainId];
+  }
+}
+
+class DrpcProvider implements RpcProvider {
+  getUrl(chainId: number): string | undefined {
+    const networks: Record<number, string> = {
+      10: "optimism",
+      8453: "base",
+      42220: "celo",
+      42161: "arbitrum",
+      421614: "arbitrum-sepolia",
+    };
+    const network = networks[chainId];
+    return network
+      ? `https://lb.drpc.org/ogrpc?network=${network}&dkey=${drpcApiPkey}`
+      : undefined;
+  }
+}
+
+class GlifProvider implements RpcProvider {
+  getUrl(chainId: number): string | undefined {
+    const urls: Record<number, string> = {
+      314: `https://node.glif.io/space07/lotus/rpc/v1`,
+      314159: `https://calibration.node.glif.io/archive/lotus/rpc/v1`,
+    };
+    return urls[chainId];
+  }
+}
+
+export class EvmClientFactory {
+  private static readonly providers: RpcProvider[] = [
+    new AlchemyProvider(),
+    new InfuraProvider(),
+    new DrpcProvider(),
+    new GlifProvider(),
+  ];
+
+  static createViemClient(chainId: number): PublicClient {
+    const urls = EvmClientFactory.getAllAvailableUrls(chainId);
+    if (urls.length === 0)
+      throw new Error(`No RPC URL available for chain ${chainId}`);
+
+    const transports = urls.map((url) =>
+      RpcClientFactory.createViemTransport(chainId, url),
+    );
+
+    return createPublicClient({
+      chain: ChainFactory.getChain(chainId),
+      transport: fallback(transports),
+    });
+  }
+
+  static createEthersClient(chainId: number): JsonRpcProvider {
+    const url = EvmClientFactory.getFirstAvailableUrl(chainId);
+    if (!url) throw new Error(`No RPC URL available for chain ${chainId}`);
+    return RpcClientFactory.createEthersJsonRpcProvider(chainId, url);
+  }
+
+  static getAllAvailableUrls(chainId: number): string[] {
+    return EvmClientFactory.providers
+      .map((provider) => provider.getUrl(chainId))
+      .filter((url): url is string => url !== undefined);
+  }
+
+  static getRpcUrl(chainId: number): string {
+    const url = EvmClientFactory.getFirstAvailableUrl(chainId);
+    if (!url) throw new Error(`No RPC URL available for chain ${chainId}`);
+    return url;
+  }
+
+  static getPublicRpcUrl(chainId: number): string {
+    const chain = ChainFactory.getChain(chainId);
+    if (!chain.rpcUrls?.default?.http?.[0]) {
+      throw new Error(`No public RPC URL available for chain ${chainId}`);
+    }
+    return chain.rpcUrls.default.http[0];
+  }
+
+  // Keep this for backward compatibility
+  static getFirstAvailableUrl(chainId: number): string | undefined {
+    return EvmClientFactory.getAllAvailableUrls(chainId)[0];
+  }
+}
+
+// Public API
+export const getSupportedChains = ChainFactory.getSupportedChains;

src/client/rpcClientFactory.ts

@@ -0,0 +1,72 @@
+import { http, Transport } from "viem";
+import { CustomEthersJsonRpcProvider } from "../lib/rpcProviders/customEthersJsonRpcProvider.js";
+import { filecoinApiKey } from "../utils/constants.js";
+import { ChainFactory } from "./chainFactory.js";
+
+interface RpcConfig {
+  url: string;
+  headers?: Record<string, string>;
+  timeout?: number;
+}
+
+// Chain-specific RPC configuration factory
+class RpcConfigFactory {
+  private static readonly DEFAULT_TIMEOUT = 20_000;
+
+  static getConfig(chainId: number, url: string): RpcConfig {
+    const baseConfig: RpcConfig = {
+      url,
+      timeout: this.DEFAULT_TIMEOUT,
+    };
+
+    // Chain-specific configurations
+    switch (chainId) {
+      case 314:
+      case 314159:
+        return {
+          ...baseConfig,
+          headers: {
+            Authorization: `Bearer ${filecoinApiKey}`,
+          },
+        };
+      default:
+        return baseConfig;
+    }
+  }
+}
+
+// Unified client factory for both Viem and Chainsauce clients
+export class RpcClientFactory {
+  // Creates a Viem transport
+  static createViemTransport(chainId: number, url: string): Transport {
+    const config = RpcConfigFactory.getConfig(chainId, url);
+
+    const httpConfig: Parameters<typeof http>[1] = {
+      timeout: config.timeout,
+    };
+
+    if (config.headers) {
+      httpConfig.fetchOptions = {
+        headers: config.headers,
+      };
+    }
+
+    return http(config.url, httpConfig);
+  }
+
+  static createEthersJsonRpcProvider(chainId: number, url: string) {
+    const config = RpcConfigFactory.getConfig(chainId, url);
+    const chain = ChainFactory.getChain(chainId);
+    const network = {
+      chainId: chain.id,
+      name: chain.name,
+      ensAddress: chain.contracts?.ensRegistry?.address,
+    };
+
+    return new CustomEthersJsonRpcProvider({
+      url: config.url,
+      config: { headers: config.headers },
+      network,
+    });
+  }
+}

src/commands/CommandFactory.ts

@@ -13,7 +13,8 @@ export function getCommand(request: SignatureRequest): ISafeApiCommand {
       return new UserUpsertCommand(
         request.safe_address,
         request.message_hash,
-        request.chain_id,
+        // The type is lying. It's a string.
+        Number(request.chain_id),
       );
     default:
       console.warn("Unrecognized purpose:", request.purpose);

src/commands/SafeApiCommand.ts

@@ -1,5 +1,6 @@
 import SafeApiKit from "@safe-global/api-kit";
 
+import { SafeApiStrategyFactory } from "../lib/safe/SafeApiKitStrategy.js";
 import { SupabaseDataService } from "../services/SupabaseDataService.js";
 import { ISafeApiCommand } from "../types/safe-signatures.js";
 
@@ -15,7 +16,8 @@ export abstract class SafeApiCommand implements ISafeApiCommand {
     this.messageHash = messageHash;
     this.chainId = chainId;
     this.dataService = new SupabaseDataService();
-    this.safeApiKit = new SafeApiKit.default({ chainId: BigInt(chainId) });
+    this.safeApiKit =
+      SafeApiStrategyFactory.getStrategy(chainId).createInstance();
   }
 
   abstract execute(): Promise<void>;

src/commands/UserUpsertCommand.ts

@@ -5,7 +5,7 @@ import {
   USER_UPDATE_MESSAGE_SCHEMA,
 } from "../lib/users/schemas.js";
 import { isTypedMessage } from "../utils/signatures.js";
-import UserUpsertSignatureVerifier from "../lib/safe-signature-verification/UserUpsertSignatureVerifier.js";
+import UserUpsertSignatureVerifier from "../lib/safe/signature-verification/UserUpsertSignatureVerifier.js";
 import { Database } from "../types/supabaseData.js";
 
 import { SafeApiCommand } from "./SafeApiCommand.js";

src/controllers/BlueprintController.ts

@@ -9,19 +9,19 @@ import {
   SuccessResponse,
   Tags,
 } from "tsoa";
+import { isAddress } from "viem";
+import { z } from "zod";
+import { EvmClientFactory } from "../client/evmClient.js";
+import { SupabaseDataService } from "../services/SupabaseDataService.js";
 import type {
-  BlueprintResponse,
+  BaseResponse,
   BlueprintCreateRequest,
   BlueprintDeleteRequest,
   BlueprintQueueMintRequest,
-  BaseResponse,
+  BlueprintResponse,
 } from "../types/api.js";
-import { z } from "zod";
-import { SupabaseDataService } from "../services/SupabaseDataService.js";
-import { verifyAuthSignedData } from "../utils/verifyAuthSignedData.js";
-import { isAddress } from "viem";
 import { Json } from "../types/supabaseData.js";
-import { getEvmClient } from "../utils/getRpcUrl.js";
+import { verifyAuthSignedData } from "../utils/verifyAuthSignedData.js";
 import { waitForTxThenMintBlueprint } from "../utils/waitForTxThenMintBlueprint.js";
 
 @Route("v1/blueprints")
@@ -367,7 +367,7 @@ export class BlueprintController extends Controller {
       };
     }
 
-    const client = getEvmClient(chain_id);
+    const client = EvmClientFactory.createViemClient(chain_id);
     const transaction = await client.getTransaction({
       hash: tx_hash as `0x${string}`,
     });