feat: eth_call command to query view functions (#29)

* feat: contracts eth_call to view functions * fixes * docs * fix: build issues * chore: remove unused code * update erc20 abi
hanchon · Aug 18, 2024 · 8435050 · 8435050
1 parent d3e147e
commit 8435050
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Showing 17 changed files with 548 additions and 63 deletions.
diff --git a/abis/erc20.abi b/abis/erc20.abi
@@ -0,0 +1,222 @@
+[
+    {
+        "constant": true,
+        "inputs": [],
+        "name": "name",
+        "outputs": [
+            {
+                "name": "",
+                "type": "string"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "view",
+        "type": "function"
+    },
+    {
+        "constant": false,
+        "inputs": [
+            {
+                "name": "_spender",
+                "type": "address"
+            },
+            {
+                "name": "_value",
+                "type": "uint256"
+            }
+        ],
+        "name": "approve",
+        "outputs": [
+            {
+                "name": "",
+                "type": "bool"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "nonpayable",
+        "type": "function"
+    },
+    {
+        "constant": true,
+        "inputs": [],
+        "name": "totalSupply",
+        "outputs": [
+            {
+                "name": "",
+                "type": "uint256"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "view",
+        "type": "function"
+    },
+    {
+        "constant": false,
+        "inputs": [
+            {
+                "name": "_from",
+                "type": "address"
+            },
+            {
+                "name": "_to",
+                "type": "address"
+            },
+            {
+                "name": "_value",
+                "type": "uint256"
+            }
+        ],
+        "name": "transferFrom",
+        "outputs": [
+            {
+                "name": "",
+                "type": "bool"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "nonpayable",
+        "type": "function"
+    },
+    {
+        "constant": true,
+        "inputs": [],
+        "name": "decimals",
+        "outputs": [
+            {
+                "name": "",
+                "type": "uint8"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "view",
+        "type": "function"
+    },
+    {
+        "constant": true,
+        "inputs": [
+            {
+                "name": "_owner",
+                "type": "address"
+            }
+        ],
+        "name": "balanceOf",
+        "outputs": [
+            {
+                "name": "balance",
+                "type": "uint256"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "view",
+        "type": "function"
+    },
+    {
+        "constant": true,
+        "inputs": [],
+        "name": "symbol",
+        "outputs": [
+            {
+                "name": "",
+                "type": "string"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "view",
+        "type": "function"
+    },
+    {
+        "constant": false,
+        "inputs": [
+            {
+                "name": "_to",
+                "type": "address"
+            },
+            {
+                "name": "_value",
+                "type": "uint256"
+            }
+        ],
+        "name": "transfer",
+        "outputs": [
+            {
+                "name": "",
+                "type": "bool"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "nonpayable",
+        "type": "function"
+    },
+    {
+        "constant": true,
+        "inputs": [
+            {
+                "name": "_owner",
+                "type": "address"
+            },
+            {
+                "name": "_spender",
+                "type": "address"
+            }
+        ],
+        "name": "allowance",
+        "outputs": [
+            {
+                "name": "",
+                "type": "uint256"
+            }
+        ],
+        "payable": false,
+        "stateMutability": "view",
+        "type": "function"
+    },
+    {
+        "payable": true,
+        "stateMutability": "payable",
+        "type": "fallback"
+    },
+    {
+        "anonymous": false,
+        "inputs": [
+            {
+                "indexed": true,
+                "name": "owner",
+                "type": "address"
+            },
+            {
+                "indexed": true,
+                "name": "spender",
+                "type": "address"
+            },
+            {
+                "indexed": false,
+                "name": "value",
+                "type": "uint256"
+            }
+        ],
+        "name": "Approval",
+        "type": "event"
+    },
+    {
+        "anonymous": false,
+        "inputs": [
+            {
+                "indexed": true,
+                "name": "from",
+                "type": "address"
+            },
+            {
+                "indexed": true,
+                "name": "to",
+                "type": "address"
+            },
+            {
+                "indexed": false,
+                "name": "value",
+                "type": "uint256"
+            }
+        ],
+        "name": "Transfer",
+        "type": "event"
+    }
+]
diff --git a/cmd/playground/query/erc20/balance.go b/cmd/playground/query/erc20/balance.go
@@ -9,6 +9,7 @@ import (
 	"github.com/hanchon/hanchond/lib/converter"
 	"github.com/hanchon/hanchond/lib/requester"
 	"github.com/hanchon/hanchond/lib/smartcontract/erc20"
+	"github.com/hanchon/hanchond/playground/cosmosdaemon"
 	"github.com/hanchon/hanchond/playground/sql"
 	"github.com/spf13/cobra"
 )
@@ -30,7 +31,12 @@ var balanceCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
-		endpoint := getEndpoint(queries, cmd)
+		endpoint, err := cosmosdaemon.GetWeb3Endpoint(queries, cmd)
+		if err != nil {
+			fmt.Printf("error generting web3 endpoint: %s\n", err.Error())
+			os.Exit(1)
+		}
+
 		client := requester.NewClient().WithUnsecureWeb3Endpoint(endpoint)
 		heightInt := erc20.Latest
 		if height != "latest" {

diff --git a/cmd/playground/query/erc20/erc20.go b/cmd/playground/query/erc20/erc20.go
@@ -1,11 +1,8 @@
 package erc20
 
 import (
-	"fmt"
 	"os"
 
-	"github.com/hanchon/hanchond/playground/database"
-	"github.com/hanchon/hanchond/playground/evmos"
 	"github.com/hanchon/hanchond/playground/filesmanager"
 	"github.com/spf13/cobra"
 )
@@ -25,25 +22,3 @@ func init() {
 	ERC20Cmd.PersistentFlags().String("url", "", "Set the url path if using external provider")
 	ERC20Cmd.PersistentFlags().Bool("mainnet", false, "Set as true if the query for Evmos mainnet. This flag takes overwrite all the other provider related flags.")
 }
-
-func getEndpoint(queries *database.Queries, cmd *cobra.Command) string {
-	endpoint := ""
-	mainnet, _ := cmd.Flags().GetBool("mainnet")
-	if mainnet {
-		return "https://proxy.evmos.org/web3"
-	}
-
-	url, _ := cmd.Flags().GetString("url")
-	if url != "" {
-		endpoint = url
-	} else {
-		nodeID, err := cmd.Flags().GetString("node")
-		if err != nil {
-			fmt.Println("node not set")
-			os.Exit(1)
-		}
-		e := evmos.NewEvmosFromDB(queries, nodeID)
-		endpoint = fmt.Sprintf("http://localhost:%d", e.Ports.P8545)
-	}
-	return endpoint
-}
diff --git a/cmd/playground/query/erc20/supply.go b/cmd/playground/query/erc20/supply.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/hanchon/hanchond/lib/requester"
 	"github.com/hanchon/hanchond/lib/smartcontract/erc20"
+	"github.com/hanchon/hanchond/playground/cosmosdaemon"
 	"github.com/hanchon/hanchond/playground/sql"
 	"github.com/spf13/cobra"
 )
@@ -21,7 +22,11 @@ var supplyCmd = &cobra.Command{
 		queries := sql.InitDBFromCmd(cmd)
 		contract := strings.TrimSpace(args[0])
 
-		endpoint := getEndpoint(queries, cmd)
+		endpoint, err := cosmosdaemon.GetWeb3Endpoint(queries, cmd)
+		if err != nil {
+			fmt.Printf("error generting web3 endpoint: %s\n", err.Error())
+			os.Exit(1)
+		}
 		client := requester.NewClient().WithUnsecureWeb3Endpoint(endpoint)
 
 		height, _ := cmd.Flags().GetString("height")

diff --git a/cmd/playground/tx/solidity/callContract.go b/cmd/playground/tx/solidity/callContract.go
@@ -0,0 +1,76 @@
+package solidity
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/hanchon/hanchond/lib/requester"
+	"github.com/hanchon/hanchond/lib/smartcontract"
+	"github.com/hanchon/hanchond/playground/cosmosdaemon"
+	"github.com/hanchon/hanchond/playground/filesmanager"
+	"github.com/hanchon/hanchond/playground/sql"
+	"github.com/spf13/cobra"
+)
+
+var params []string
+
+// callContractViewCmd represents the callContractView command
+var callContractViewCmd = &cobra.Command{
+	Use:   "call-contract-view [contract] [abi_path] [method]",
+	Args:  cobra.ExactArgs(3),
+	Short: "Call a contract view with eth_call",
+	Run: func(cmd *cobra.Command, args []string) {
+		queries := sql.InitDBFromCmd(cmd)
+
+		height, err := cmd.Flags().GetString("height")
+		if err != nil {
+			fmt.Println("could not read height value:", err.Error())
+			os.Exit(1)
+		}
+
+		contract := strings.TrimSpace(args[0])
+		abiPath := strings.TrimSpace(args[1])
+		method := strings.TrimSpace(args[2])
+
+		abiBytes, err := filesmanager.ReadFile(abiPath)
+		if err != nil {
+			fmt.Printf("error reading the abi file:%s\n", err.Error())
+			os.Exit(1)
+		}
+
+		endpoint, err := cosmosdaemon.GetWeb3Endpoint(queries, cmd)
+		if err != nil {
+			fmt.Printf("error generting web3 endpoint: %s\n", err.Error())
+			os.Exit(1)
+		}
+
+		callArgs, err := smartcontract.StringsToABIArguments(params)
+		if err != nil {
+			fmt.Printf("error converting arguments: %s\n", err.Error())
+			os.Exit(1)
+		}
+
+		client := requester.NewClient().WithUnsecureWeb3Endpoint(endpoint)
+
+		callData, err := smartcontract.ABIPack(abiBytes, method, callArgs...)
+		if err != nil {
+			fmt.Println(err.Error())
+			os.Exit(1)
+		}
+
+		resp, err := client.EthCall(contract, callData, height)
+		if err != nil {
+			fmt.Println("error on eth call", err.Error())
+			os.Exit(1)
+		}
+		fmt.Println(string(resp))
+		os.Exit(0)
+	},
+}
+
+func init() {
+	SolidityCmd.AddCommand(callContractViewCmd)
+	callContractViewCmd.Flags().String("height", "latest", "Query at the given height.")
+	callContractViewCmd.Flags().StringSliceVarP(&params, "params", "p", []string{}, "A list of params. If the param is an address, prefix with `a:0x123...`")
+}