fix: smart-contract deployment command + eth_call cmd (#30)

cmd/playground/query/evmos/ethCode.go

@@ -0,0 +1,46 @@
+package evmos
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/hanchon/hanchond/playground/evmos"
+	"github.com/hanchon/hanchond/playground/sql"
+	"github.com/spf13/cobra"
+)
+
+// ethCodeCmd represents the ethCode command
+var ethCodeCmd = &cobra.Command{
+	Use:   "eth-code [address]",
+	Args:  cobra.ExactArgs(1),
+	Short: "Get the smartcontract registered eth code",
+	Run: func(cmd *cobra.Command, args []string) {
+		queries := sql.InitDBFromCmd(cmd)
+		nodeID, err := cmd.Flags().GetString("node")
+		if err != nil {
+			fmt.Println("node not set")
+			os.Exit(1)
+		}
+		height, err := cmd.Flags().GetString("height")
+		if err != nil {
+			fmt.Println("error getting the request height:", err.Error())
+			os.Exit(1)
+		}
+
+		e := evmos.NewEvmosFromDB(queries, nodeID)
+		client := e.NewRequester()
+
+		code, err := client.EthCode(args[0], height)
+		if err != nil {
+			fmt.Println("could not get the ethCode:", err.Error())
+			os.Exit(1)
+		}
+
+		fmt.Println(string(code))
+	},
+}
+
+func init() {
+	EvmosCmd.AddCommand(ethCodeCmd)
+	ethCodeCmd.Flags().String("height", "latest", "Query at the given height.")
+}

cmd/playground/tx/solidity/deployContract.go

@@ -1,6 +1,7 @@
 package solidity
 
 import (
+	"encoding/hex"
 	"fmt"
 	"os"
 
@@ -42,6 +43,12 @@ var deployContractCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
+		bytecode, err = hex.DecodeString(string(bytecode))
+		if err != nil {
+			fmt.Println("error converting bytecode to []byte:", err.Error())
+			os.Exit(1)
+		}
+
 		txHash, err := builder.DeployContract(0, bytecode, uint64(gasLimit))
 		if err != nil {
 			fmt.Printf("error sending the transaction: %s\n", err.Error())

docs/pages/hanchond/playground/queries/evmos/ethCode.mdx

@@ -0,0 +1,12 @@
+# Eth Code
+
+The command `eth-code` returns the smart-contract bytecode.
+
+```sh
+hanchond playground query evmos eth-code 0xc0ac82342eacc3e5d38744660f7a57f465568746 | jq .
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "result": "0x6080604052348015600f57600080fd5b506004361060285760003560e01c80631627905514602d575b600080fd5b605060048036036020811015604157600080fd5b50356001600160a01b03166064565b604080519115158252519081900360200190f35b6000813f7fc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470818114801590609757508115155b94935050505056fea264697066735822122030375d12bcd1c1173c9972f2bab6ba2db059fae1a35020cc0d1115194a8b445464736f6c634300060c0033"
+}
+```

docs/pages/lib/requester/web3.mdx

@@ -81,6 +81,16 @@ txHash, err := c.BroadcastTX(tx)
 
 ## Eth_call
 
+Interacts with a public function exposed by the smartcontract at the given height
+
 ```go
 resp, err := client.EthCall(contract, callData, height)
 ```
+
+## Eth_code
+
+Gets the smartcontract bytecode at the given height
+
+```go
+resp, err := client.EthCode(contract, height)
+```

lib/requester/web3.go

@@ -141,6 +141,19 @@ func (c *Client) EthCall(address string, data string, height string) ([]byte, er
 	)
 }
 
+// Eth_code
+func (c *Client) EthCode(address string, height string) ([]byte, error) {
+	heightString, err := heigthToQueryParam(height)
+	if err != nil {
+		return nil, err
+	}
+	return c.SendPostRequest(
+		c.Web3Endpoint,
+		[]byte(`{"method":"eth_getCode","params":["`+address+`","`+heightString+`"],"id":1,"jsonrpc":"2.0"}`),
+		c.Web3Auth,
+	)
+}
+
 func heigthToQueryParam(height string) (string, error) {
 	heightString := "latest"
 	if height != "latest" {

vocs.config.ts

@@ -218,6 +218,10 @@ export default defineConfig({
                       text: "IBC Rate Limit",
                       link: "/hanchond/playground/queries/evmos/rateLimit",
                     },
+                    {
+                      text: "Smart-Contract Bytecode",
+                      link: "/hanchond/playground/queries/evmos/ethCode",
+                    },
                   ],
                 },
               ],