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[WIP] Add Arbitrum support #75

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[WIP] Add Arbitrum support #75

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16 changes: 14 additions & 2 deletions src/api/utils/coingecko.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -43,8 +43,10 @@ export const ETH_CURRENCY_CODE = 'eth';
* @title CoinGeckoDataService
* @author Set Protocol
*
* A utility library for fetching token metadata and coin prices from Coingecko for Ethereum
* and Polygon chains
* A utility library for fetching token metadata and coin prices from Coingecko
* + Ethereum: (1)
* + Polygon (137)
* + Arbitrum (42161)
*/
export class CoinGeckoDataService {
chainId: number;
Expand Down Expand Up @@ -102,6 +104,9 @@ export class CoinGeckoDataService {
case 137:
this.tokenList = await this.fetchPolygonTokenList();
break;
case 42161:
this.tokenList = await this.fetchArbitrumTokenList();
break;
}
this.tokenMap = this.convertTokenListToAddressMap(this.tokenList);

Expand Down Expand Up @@ -136,6 +141,7 @@ export class CoinGeckoDataService {
switch (this.chainId) {
case 1: return 'ethereum';
case 137: return 'polygon-pos';
case 42161: return 'arbitrum';
default: return '';
}
}
Expand Down Expand Up @@ -244,4 +250,10 @@ export class CoinGeckoDataService {
const data = (await axios.get(url)).data;
return data;
}

private async fetchArbitrumTokenList(): Promise<CoinGeckoTokenData[]> {
const url = 'https://bridge.arbitrum.io/token-list-42161.json';
const response = await axios.get(url);
return response.data.tokens;
}
}
2 changes: 1 addition & 1 deletion src/assertions/CommonAssertions.ts
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Expand Up @@ -117,7 +117,7 @@ export class CommonAssertions {
}

public isSupportedChainId(chainId: number) {
const validChainIds = [1, 137];
const validChainIds = [1, 137, 42161];

if ( !validChainIds.includes(chainId)) {
throw new Error(`Unsupported chainId: ${chainId}. Must be one of ${validChainIds}`);
Expand Down
41 changes: 41 additions & 0 deletions test/fixtures/tradeQuote.ts
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Expand Up @@ -153,6 +153,47 @@ export const tradeQuoteFixtures = {
},
},

// Endpoint used by UniswapV3
arbitrumBridgeTokenRequest: 'https://bridge.arbitrum.io/token-list-42161.json',
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Source: Uniswap uses this endpoint

arbitrumBridgeTokenResponse: {
data: {
tokens: [{
'chainId': 42161,
'address': '0x0e15258734300290a651FdBAe8dEb039a8E7a2FA',
'name': 'Alchemy',
'symbol': 'ALCH',
'decimals': 18,
'logoURI': '',
'extensions': {
'l1Address': '0x0000A1c00009A619684135B824Ba02f7FbF3A572',
'l1GatewayAddress': '0xa3A7B6F88361F48403514059F1F16C8E78d60EeC',
},
}, {
'chainId': 42161,
'address': '0xBfa641051Ba0a0Ad1b0AcF549a89536A0D76472E',
'name': 'Badger',
'symbol': 'BADGER',
'decimals': 18,
'logoURI': '',
'extensions': {
'l1Address': '0x3472A5A71965499acd81997a54BBA8D852C6E53d',
'l1GatewayAddress': '0xa3A7B6F88361F48403514059F1F16C8E78d60EeC',
},
}, {
'chainId': 42161,
'address': '0x040d1EdC9569d4Bab2D15287Dc5A4F10F56a56B8',
'name': 'Balancer',
'symbol': 'BAL',
'decimals': 18,
'logoURI': '',
'extensions': {
'l1Address': '0xba100000625a3754423978a60c9317c58a424e3D',
'l1GatewayAddress': '0xa3A7B6F88361F48403514059F1F16C8E78d60EeC',
},
}],
},
},

coinGeckoPricesRequestEth: 'https://api.coingecko.com/api/v3/simple/token_price/ethereum?contract_addresses=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2,0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2,0x0bc529c00c6401aef6d220be8c6ea1667f6ad93e&vs_currencies=usd,usd,usd',
coinGeckoPricesResponseEth: {
data: {
Expand Down