Adding support for Abstract Layer 2 in sdk-core

[Jakub-Kliment]

Dear Uniswap team,

Following up on this proposal: https://gov.uniswap.org/t/rfc-deploy-uniswap-v3-on-abstract/25206, I would like to propose adding support for the Abstract Layer 2 chain in the sdk-core package since all major contracts are already deployed and integrating Abstract would greatly facilitate development and adoption on this emerging L2.

Proposed changes:

• add chain id in sdks/sdk-core/src/chains.ts

export enum ChainId {
  ...
  ABSTRACT = 2741,
}

export const SUPPORTED_CHAINS = [
  ...
  ChainId.ABSTRACT,
] as const

• add the correct addresses based on the proposal (to be verified) in sdks/sdk-core/src/addresses.ts

...
export const V2_FACTORY_ADDRESSES: AddressMap = {
  ...
  [ChainId.ABSTRACT]: '0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f',
}

export const V2_ROUTER_ADDRESSES: AddressMap = {
  ...
  [ChainId.ABSTRACT]: '0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D',
}

...

// v3 addresses on Abstract
const ABSTRACT_ADDRESSES: ChainAddresses = {
  v3CoreFactoryAddress: '0xA1160e73B63F322ae88cC2d8E700833e71D0b2a1',
  multicallAddress: '0x9CA4dcb2505fbf536F6c54AA0a77C79f4fBC35C0',
  quoterAddress: '0x117Fc8DEf58147016f92bAE713533dDB828aBB7e',

  nonfungiblePositionManagerAddress: '0xfA928D3ABc512383b8E5E77edd2d5678696084F9',
  tickLensAddress: '0x9c7d30F93812f143b6Efa673DB8448EfCB9f747E',
  swapRouter02Address: '0x2cB10Ac97F2C3dAEDEaB7b72DbaEb681891f51B8',
}

export const CHAIN_TO_ADDRESSES_MAP: Record<SupportedChainsType, ChainAddresses> = {
  ...
  [ChainId.ABSTRACT]: ABSTRACT_ADDRESSES,
}

• add the WETH address on Abstract to sdks/sdk-core/src/entities/weth9.ts

export const WETH9: { [chainId: number]: Token } = {
  ...
  2741: new Token(2741, '0x3439153EB7AF838Ad19d56E1571FBD09333C2809', 18, 'WETH', 'Wrapped Ether'),
}

[EDIT]

• add chain configuration for universal router in sdks/universal-router-sdk/utils/constants.ts

export const CHAIN_CONFIGS: { [key: number]: ChainConfig } = {
  ...
  // abstract
  [1]: {
    weth: '0x3439153EB7AF838Ad19d56E1571FBD09333C2809',
    routerConfigs: {
      [UniversalRouterVersion.V1_2]: {
        address: '0x0',
        creationBlock: 0,
      },
      [UniversalRouterVersion.V2_0]: {
        address: '0xE1b076ea612Db28a0d768660e4D81346c02ED75e',
        creationBlock: 66790,
      },
    },
  },
}

• add chain id to switch of permit2Address in sdks/permit2-sdk/src/constants.ts

export function permit2Address(chainId?: number): string {
  switch (chainId) {
    case 324:
    case 2741:
      return '0x0000000000225e31D15943971F47aD3022F714Fa'
    default:
      return PERMIT2_ADDRESS
  }
}

Thanks for considering this integration!
Best regards