feat : Integrate swap-x-v2 (#685)

pkg/liquidity-source/solidly-v2/constant.go

@@ -16,7 +16,7 @@ const (
 	factoryMethodIsPaused       = "isPaused"
 	factoryMethodAllPairs       = "allPairs"
 	factoryMethodAllPairsLength = "allPairsLength"
-	factoryMethodStableFee      = "stableFees"
+	factoryMethodStableFees     = "stableFees"
 	factoryMethodVolatileFees   = "volatileFees"
 
 	poolMethodMetadata    = "metadata"

pkg/liquidity-source/solidly-v2/pool_list_updater.go

@@ -254,7 +254,7 @@ func (u *PoolsListUpdater) listPoolData(
 	listPoolMetadataRequest.AddCall(&ethrpc.Call{
 		ABI:    factoryABI,
 		Target: u.config.FactoryAddress,
-		Method: factoryMethodStableFee,
+		Method: factoryMethodStableFees,
 		Params: []interface{}{},
 	}, []interface{}{&stableFee})
 	listPoolMetadataRequest.AddCall(&ethrpc.Call{

pkg/liquidity-source/swap-x-v2/abis.go

@@ -0,0 +1,34 @@
+package swapxv2
+
+import (
+	"bytes"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+)
+
+var (
+	poolABI    abi.ABI
+	factoryABI abi.ABI
+)
+
+func init() {
+	builder := []struct {
+		ABI  *abi.ABI
+		data []byte
+	}{
+		{
+			&poolABI, poolABIJson,
+		},
+		{
+			&factoryABI, factoryABIJson,
+		},
+	}
+
+	for _, b := range builder {
+		var err error
+		*b.ABI, err = abi.JSON(bytes.NewReader(b.data))
+		if err != nil {
+			panic(err)
+		}
+	}
+}