Merge pull request #280 from vic-en/feat/balancer

feat/ balancer connector

package.json

@@ -24,6 +24,7 @@
   },
   "dependencies": {
     "@cosmjs/amino": "^0.32.2",
+    "@balancer-labs/sdk": "^1.1.5",
     "@bancor/carbon-sdk": "^0.0.93-DEV",
     "@cosmjs/proto-signing": "^0.31.1",
     "@cosmjs/stargate": "^0.31.1",

src/chains/avalanche/avalanche.ts

@@ -12,6 +12,7 @@ import { SushiswapConfig } from '../../connectors/sushiswap/sushiswap.config';
 import { ConfigManagerV2 } from '../../services/config-manager-v2';
 import { EVMController } from '../ethereum/evm.controllers';
 import { Curve } from '../../connectors/curve/curve';
+import { BalancerConfig } from '../../connectors/balancer/balancer.config';
 
 export class Avalanche extends EthereumBase implements Ethereumish {
   private static _instances: { [name: string]: Avalanche };
@@ -101,6 +102,8 @@ export class Avalanche extends EthereumBase implements Ethereumish {
         throw Error('Curve not ready');
       }
       spender = curve.router;
+    } else if (reqSpender === 'balancer') {
+      spender = BalancerConfig.config.routerAddress(this._chain);
     } else {
       spender = reqSpender;
     }

src/chains/avalanche/avalanche.validators.ts

@@ -27,6 +27,7 @@ export const validateSpender: Validator = mkValidator(
       val === 'traderjoe' ||
       val === 'openocean' ||
       val === 'sushiswap' ||
+      val === 'balancer' ||
       isAddress(val))
 );
 

src/chains/ethereum/ethereum.ts

@@ -16,6 +16,7 @@ import { SushiswapConfig } from '../../connectors/sushiswap/sushiswap.config';
 import { OpenoceanConfig } from '../../connectors/openocean/openocean.config';
 import { Curve } from '../../connectors/curve/curve';
 import { CarbonConfig } from '../../connectors/carbon/carbon.config';
+import { BalancerConfig } from '../../connectors/balancer/balancer.config';
 
 // MKR does not match the ERC20 perfectly so we need to use a separate ABI.
 const MKR_ADDRESS = '0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2';
@@ -217,6 +218,8 @@ export class Ethereum extends EthereumBase implements Ethereumish {
         throw Error('Curve not ready');
       }
       spender = curve.router;
+    } else if (reqSpender === 'balancer') {
+      spender = BalancerConfig.config.routerAddress(this._chain);
     } else {
       spender = reqSpender;
     }

src/chains/ethereum/ethereum.validators.ts

@@ -64,6 +64,7 @@ export const validateSpender: Validator = mkValidator(
       val === 'xsswap' ||
       val === 'curve' ||
       val === 'carbonamm' ||
+      val === 'balancer' ||
       isAddress(val))
 );
 

src/chains/polygon/polygon.ts

@@ -12,6 +12,7 @@ import { ConfigManagerV2 } from '../../services/config-manager-v2';
 import { OpenoceanConfig } from '../../connectors/openocean/openocean.config';
 import { EVMController } from '../ethereum/evm.controllers';
 import { Curve } from '../../connectors/curve/curve';
+import { BalancerConfig } from '../../connectors/balancer/balancer.config';
 
 export class Polygon extends EthereumBase implements Ethereumish {
   private static _instances: { [name: string]: Polygon };
@@ -94,6 +95,8 @@ export class Polygon extends EthereumBase implements Ethereumish {
         throw Error('Curve not ready');
       }
       spender = curve.router;
+    } else if (reqSpender === 'balancer') {
+      spender = BalancerConfig.config.routerAddress(this._chain);
     } else {
       spender = reqSpender;
     }

src/chains/polygon/polygon.validators.ts

@@ -27,6 +27,7 @@ export const validateSpender: Validator = mkValidator(
       val === 'sushi' ||
       val === 'quickswap' ||
       val === 'openocean' ||
+      val === 'balancer' ||
       isAddress(val))
 );
 

src/connectors/balancer/balancer.config.ts

@@ -0,0 +1,23 @@
+import { buildConfig, NetworkConfig } from '../../network/network.utils';
+
+export namespace BalancerConfig {
+  export const config: NetworkConfig = buildConfig(
+    'balancer',
+    ['AMM'],
+    [
+      {
+        chain: 'avalanche',
+        networks: ['avalanche'],
+      },
+      {
+        chain: 'ethereum',
+        networks: ['mainnet', 'arbitrum', 'optimism'],
+      },
+      {
+        chain: 'polygon',
+        networks: ['mainnet'],
+      },
+    ],
+    'EVM'
+  );
+}