构建网关连接器¶

// src/connectors/mydex/mydex.ts
import { ConnectorBase } from '../../services/connector-base';

export class MyDex extends ConnectorBase {
  private static instances: Record<string, MyDex> = {};
  private chain: string;
  private network: string;

  private constructor(chain: string, network: string) {
    super(chain, network);
    this.chain = chain;
    this.network = network;
  }

  public static getInstance(chain: string, network: string): MyDex {
    const key = `${chain}:${network}`;
    if (!MyDex.instances[key]) {
      MyDex.instances[key] = new MyDex(chain, network);
    }
    return MyDex.instances[key];
  }

  // Core initialization
  public async init(): Promise<void> {
    // Initialize SDK, load contracts, etc.
  }

  // Required: Get connector name
  public get name(): string {
    return 'mydex';
  }

  // Required: Get router/factory address
  public get routerAddress(): string {
    return this.config.routerAddress;
  }
}

// Quote a swap
async quote(
  base: Token,
  quote: Token,
  amount: BigNumber,
  side: 'BUY' | 'SELL'
): Promise<SwapQuote> {
  // Implement quote logic
  return {
    route: optimalRoute,
    expectedOut: outputAmount,
    priceImpact: impact,
    gasEstimate: gasLimit
  };
}

// Execute a swap
async trade(
  wallet: Wallet,
  quote: SwapQuote,
  slippage: number
): Promise<Transaction> {
  // Build and execute transaction
  return transaction;
}

// Get pool information
async poolInfo(
  base: Token,
  quote: Token
): Promise<PoolInfo> {
  // Fetch pool data
  return {
    reserves: [baseReserve, quoteReserve],
    fee: poolFee,
    liquidity: totalLiquidity
  };
}

// Add liquidity
async addLiquidity(
  wallet: Wallet,
  base: Token,
  quote: Token,
  baseAmount: BigNumber,
  quoteAmount: BigNumber,
  slippage: number
): Promise<Transaction> {
  // Add liquidity logic
  return transaction;
}

// Open a concentrated liquidity position
async openPosition(
  wallet: Wallet,
  pool: Pool,
  lowerPrice: number,
  upperPrice: number,
  baseAmount: BigNumber,
  quoteAmount: BigNumber
): Promise<Position> {
  // Create position NFT
  return position;
}

// Collect earned fees
async collectFees(
  wallet: Wallet,
  positionId: string
): Promise<Transaction> {
  // Collect fees logic
  return transaction;
}

// src/connectors/mydex/router-routes/router.routes.ts
import { Router, Request, Response } from 'express';
import { MyDex } from '../mydex';
import { 
  QuoteSwapRequest,
  QuoteSwapResponse,
  ExecuteSwapRequest,
  ExecuteSwapResponse 
} from '../../../schemas/router-schema';

export const routerRoutes = Router();

routerRoutes.post('/quote-swap', async (req: Request, res: Response) => {
  const request = req.body as QuoteSwapRequest;
  const connector = MyDex.getInstance(request.chain, request.network);

  try {
    const quote = await connector.quote(
      request.base,
      request.quote,
      request.amount,
      request.side
    );

    const response: QuoteSwapResponse = {
      network: request.network,
      timestamp: Date.now(),
      latency: 0,
      base: request.base,
      quote: request.quote,
      amount: request.amount,
      expectedOut: quote.expectedOut,
      price: quote.price,
      gasEstimate: quote.gasEstimate,
      route: quote.route
    };

    res.status(200).json(response);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

routerRoutes.post('/execute-swap', async (req: Request, res: Response) => {
  // Implementation for swap execution
});

// src/connectors/connector.routes.ts
import { Router } from 'express';
import { routerRoutes as mydexRouterRoutes } from './mydex/router-routes/router.routes';
import { ammRoutes as mydexAmmRoutes } from './mydex/amm-routes/amm.routes';

export const connectorRoutes = Router();

// Add your connector routes
connectorRoutes.use('/mydex/router', mydexRouterRoutes);
connectorRoutes.use('/mydex/amm', mydexAmmRoutes);

// test/connectors/mydex/mydex.test.ts
import { MyDex } from '../../../src/connectors/mydex/mydex';

describe('MyDex Connector', () => {
  let connector: MyDex;

  beforeEach(() => {
    connector = MyDex.getInstance('ethereum', 'mainnet');
  });

  describe('quote', () => {
    it('should return valid quote for token swap', async () => {
      const quote = await connector.quote(
        mockTokenA,
        mockTokenB,
        BigNumber.from('1000000'),
        'SELL'
      );

      expect(quote).toBeDefined();
      expect(quote.expectedOut).toBeGreaterThan(0);
      expect(quote.priceImpact).toBeLessThan(0.1);
    });

    it('should handle insufficient liquidity', async () => {
      await expect(
        connector.quote(
          mockTokenA,
          mockTokenB,
          BigNumber.from('999999999999'),
          'SELL'
        )
      ).rejects.toThrow('Insufficient liquidity');
    });
  });

  // Add tests for all methods
});

// src/chains/mychain/mychain.ts
import { ChainBase } from '../../services/chain-base';

export class MyChain extends ChainBase {
  private static instances: Record<string, MyChain> = {};

  public static getInstance(network: string): MyChain {
    if (!MyChain.instances[network]) {
      MyChain.instances[network] = new MyChain(network);
    }
    return MyChain.instances[network];
  }

  // Implement required methods
  async getWallet(address: string): Promise<Wallet> {
    // Wallet implementation
  }

  async getBalance(address: string): Promise<Balance> {
    // Balance checking logic
  }

  async getTokens(symbols: string[]): Promise<Token[]> {
    // Token resolution logic
  }
}

// src/chains/mychain/routes/mychain.routes.ts
import { Router } from 'express';
import { MyChain } from '../mychain';

export const chainRoutes = Router();

chainRoutes.get('/balance', async (req, res) => {
  const { address } = req.query;
  const chain = MyChain.getInstance(req.query.network);
  const balance = await chain.getBalance(address);
  res.json(balance);
});