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Chore: Add new chains
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‎.changeset/bright-apes-add-chains.md‎

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---
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"@mimicprotocol/lib-ts": minor
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"@mimicprotocol/cli": minor
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---
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Add Polygon, Avalanche, and BNB chain support

‎packages/lib-ts/src/chains/Avalanche.ts‎

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import { ERC20Token } from '../tokens'
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import { ChainId } from '../types'
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/* eslint-disable no-secrets/no-secrets */
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export namespace Avalanche {
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export const CHAIN_ID = ChainId.AVALANCHE
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export const AVAX = ERC20Token.native(CHAIN_ID)
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export const USDC = ERC20Token.fromString('0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E', CHAIN_ID, 6, 'USDC')
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export const USDT = ERC20Token.fromString('0x9702230A8Ea53601f5cd2dc00fDbc13d4dF4A8c7', CHAIN_ID, 6, 'USDt')
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export const DAI = ERC20Token.fromString('0xd586E7F844cEa2F87f50152665BCbc2C279D8d70', CHAIN_ID, 18, 'DAI.e')
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export const WBTC = ERC20Token.fromString('0x50b7545627a5162F82A992c33b87aDc75187B218', CHAIN_ID, 8, 'WBTC.e')
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export const WETH = ERC20Token.fromString('0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB', CHAIN_ID, 18, 'WETH.e')
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export const WAVAX = ERC20Token.fromString('0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7', CHAIN_ID, 18, 'WAVAX')
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}

‎packages/lib-ts/src/chains/BNB.ts‎

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import { ERC20Token } from '../tokens'
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import { ChainId } from '../types'
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/* eslint-disable no-secrets/no-secrets */
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export namespace BNB {
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export const CHAIN_ID = ChainId.BNB
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export const BNB = ERC20Token.native(CHAIN_ID)
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export const USDC = ERC20Token.fromString('0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d', CHAIN_ID, 18, 'USDC')
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export const USDT = ERC20Token.fromString('0x55d398326f99059fF775485246999027B3197955', CHAIN_ID, 18, 'USDT')
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export const DAI = ERC20Token.fromString('0x1AF3F329e8BE154074D8769D1FFa4eE058B1DBc3', CHAIN_ID, 18, 'DAI')
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export const WBTC = ERC20Token.fromString('0x7130d2A12B9BCbFAe4f2634d864A1Ee1Ce3ead9c', CHAIN_ID, 18, 'BTCB')
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export const WETH = ERC20Token.fromString('0x2170Ed0880ac9A755fd29B2688956BD959F933F8', CHAIN_ID, 18, 'ETH')
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export const WBNB = ERC20Token.fromString('0xBB4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c', CHAIN_ID, 18, 'WBNB')
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}

‎packages/lib-ts/src/chains/Polygon.ts‎

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import { ERC20Token } from '../tokens'
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import { ChainId } from '../types'
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/* eslint-disable no-secrets/no-secrets */
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export namespace Polygon {
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export const CHAIN_ID = ChainId.POLYGON
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export const POL = ERC20Token.native(CHAIN_ID)
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export const USDC = ERC20Token.fromString('0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174', CHAIN_ID, 6, 'USDC')
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export const USDT = ERC20Token.fromString('0xc2132D05D31c914a87C6611C10748AEb04B58e8F', CHAIN_ID, 6, 'USDT0')
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export const DAI = ERC20Token.fromString('0x8f3Cf7ad23Cd3CaDbD9735AFf958023239c6A063', CHAIN_ID, 18, 'DAI')
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export const WBTC = ERC20Token.fromString('0x1BFD67037B42Cf73acF2047067bd4F2C47D9BfD6', CHAIN_ID, 8, 'WBTC')
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export const WETH = ERC20Token.fromString('0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619', CHAIN_ID, 18, 'WETH')
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export const WPOL = ERC20Token.fromString('0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270', CHAIN_ID, 18, 'WPOL')
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}

‎packages/lib-ts/src/chains/index.ts‎

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export * from './Arbitrum'
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export * from './Avalanche'
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export * from './Base'
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export * from './BaseSepolia'
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export * from './BNB'
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export * from './Ethereum'
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export * from './Gnosis'
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export * from './Optimism'
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export * from './Polygon'
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export * from './Sonic'

‎packages/lib-ts/src/tokens/ERC20Token.ts‎

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case ChainId.ARBITRUM:
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case ChainId.OPTIMISM:
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return ERC20Token.fromString(EVM_NATIVE_ADDRESS, chainId, 18, 'ETH')
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case ChainId.BNB:
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return ERC20Token.fromString(EVM_NATIVE_ADDRESS, chainId, 18, 'BNB')
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case ChainId.GNOSIS:
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return ERC20Token.fromString(EVM_NATIVE_ADDRESS, chainId, 18, 'xDAI')
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case ChainId.POLYGON:
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return ERC20Token.fromString('0x0000000000000000000000000000000000001010', chainId, 18, 'POL')
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case ChainId.AVALANCHE:
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return ERC20Token.fromString(EVM_NATIVE_ADDRESS, chainId, 18, 'AVAX')
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case ChainId.SONIC:
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return ERC20Token.fromString(EVM_NATIVE_ADDRESS, chainId, 18, 'SONIC')
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default:

‎packages/lib-ts/src/types/ChainId.ts‎

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export enum ChainId {
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ETHEREUM = 1,
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OPTIMISM = 10,
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BNB = 56,
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POLYGON = 137,
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SONIC = 146,
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ARBITRUM = 42161,
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AVALANCHE = 43114,
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BASE = 8453,
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BASE_SEPOLIA = 84532,
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GNOSIS = 100,
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SOLANA_MAINNET = 507424,
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SONIC = 146,
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}

‎packages/lib-ts/tests/helpers.ts‎

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ChainId.ARBITRUM,
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ChainId.OPTIMISM,
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ChainId.GNOSIS,
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ChainId.BNB,
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ChainId.POLYGON,
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ChainId.AVALANCHE,
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ChainId.SONIC,
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]
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‎packages/lib-ts/tests/tokens/ERC20Token.spec.ts‎

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})
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})
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describe('when the chain id is bnb', () => {
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const chainId = ChainId.BNB
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it('returns the expected token', () => {
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const token = ERC20Token.native(chainId)
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expect(token.address.toHexString()).toBe(EVM_NATIVE_ADDRESS)
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expect(token.chainId).toBe(chainId)
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expect(token.symbol).toBe('BNB')
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expect(token.decimals).toBe(18)
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})
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})
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describe('when the chain id is gnosis', () => {
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const chainId = ChainId.GNOSIS
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})
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})
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describe('when the chain id is polygon', () => {
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const chainId = ChainId.POLYGON
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it('returns the expected token', () => {
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const token = ERC20Token.native(chainId)
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expect(token.address.toHexString()).toBe('0x0000000000000000000000000000000000001010')
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expect(token.chainId).toBe(chainId)
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expect(token.symbol).toBe('POL')
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expect(token.decimals).toBe(18)
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})
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})
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describe('when the chain id is avalanche', () => {
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const chainId = ChainId.AVALANCHE
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it('returns the expected token', () => {
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const token = ERC20Token.native(chainId)
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expect(token.address.toHexString()).toBe(EVM_NATIVE_ADDRESS)
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expect(token.chainId).toBe(chainId)
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expect(token.symbol).toBe('AVAX')
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expect(token.decimals).toBe(18)
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})
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})
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describe('when the chain id is sonic', () => {
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const chainId = ChainId.SONIC
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