DeBox Bot Blockchain Buttons (button3)

DeBox supports two ways to start wallet signing and on-chain transactions: an IM blockchain button inside a chat, or a custom H5/DApp page. This page explains how to choose between them, defines the responsibility boundary of an IM blockchain button, and preserves the source-aligned button3 parameters and complete main.go example.

Official button3 demo

Open the button3 Bot profile in the DeBox App to try the IM blockchain-button flow.

Start the demo

1. Open the button3 Bot profile in the DeBox App and enter the chat.
2. Tap the command button to the left of the input field, or enter / in the input field, to open the command list.
3. Select /start from the command list.
4. The Bot sends the available demo buttons. Select the signing or transaction action you want to try.

Step 1. Tap the command button. Entering / in the input field opens the same list.

Step 2. Select /start to display the demo buttons.

1. Choose an on-chain interaction method

Method	Best for	Development model
IM blockchain button	A single signing, authorization, payment, or contract action directly in chat	DeBox provides the supported button and native wallet-confirmation flow; the developer supplies the request parameters.
H5 / DApp	Forms, quotes, risk notices, calculations, multi-step actions, and order-management interfaces	The developer builds the page and business logic, then uses standard Web3.js with the injected wallet provider.

Use an IM blockchain button when one click can be represented by a supported wallet request. Use an H5/DApp when the user needs to review or enter more information before signing or paying.

1.1 Two ways to open DeBox Swap

DeBox supports two ways to open the native Swap flow:

1. IM blockchain button: use the general debox://wallet/request route with a JSON-RPC wallet request. In addition to signing, transfers, and contract calls, a request with method: "swap" can open the native DeBox Swap.
2. Swap modal Deep Link: use the dedicated debox://rn/trade/swap/modal route with URL query parameters to prefill the chain, token to sell, token to buy, and amount. The link can be sent as a Bot URL button or rich-text link and supports refGid for group-channel revenue-sharing attribution.

Method	Request format	Best for
wallet/request + method: "swap"	JSON-RPC request	IM blockchain buttons and Swap requests built in the wallet-request format
trade/swap/modal	URL query parameters	URL buttons, rich-text links, prefilled Swap, and revenue-sharing channel attribution

Both methods open DeBox Swap, but their request formats and use cases differ. refGid is the group-channel attribution parameter for the Swap modal Deep Link. Do not add it directly to the wallet/request JSON-RPC request unless the platform explicitly supports that format.

See DeBox App Deep Links for the complete Swap modal link and parameter reference.

2. How an IM blockchain button works

The button uses the supported debox://wallet/request route and carries a JSON-RPC wallet request in its callback data.

Responsibility	What it includes
DeBox client	Render the supported button format, handle the click, open the native DeBox wallet confirmation, and ask the wallet to sign or broadcast after the user approves.
Bot / developer	Choose the button text and supported presentation options; build and validate the JSON-RPC method, chain ID, addresses, value, and ABI-encoded data; resolve any placeholders before sending the button.

The runtime flow is:

Bot sends an IM blockchain button
→ User selects the button
→ DeBox opens the native wallet confirmation
→ User approves or rejects the request
→ The wallet signs the message or broadcasts the transaction

A simplified transaction request looks like this:

{
  "jsonrpc": "2.0",
  "id": 104,
  "method": "eth_sendTransaction",
  "params": [
    {
      "chainId": "0x38",
      "from": "0xUSER_ADDRESS",
      "to": "0xTARGET_OR_CONTRACT_ADDRESS",
      "data": "0xABI_ENCODED_CALLDATA",
      "value": "0x0"
    }
  ]
}

For a native-token payment, put the amount in value. For a token transfer or contract call, encode the method and amount in data and normally keep value at 0x0.

In the bundled button3 sample, selfAddress is a temporary placeholder. The Bot code replaces it with user.Address through escapeAllStr before sending the button. Do not rely on the DeBox client to perform that sample-specific replacement.

3. button3 parameters (source-aligned)

These payload strings are defined in main.go and bound to button CallbackData on /start:

• eth_getBalanceStr
• personal_signStr
• eth_signTypedData_v4Str
• eth_sendTransactionStrNative
• eth_sendTransactionStrToken
• eth_sendTransactionApproveStr
• sendTransactionStrTransferFrom
• sendTransactionStrMint
• sendTransactionStrSwap
• sendTransactionStrDeploy

Replacement rules (exact source behavior):

• selfAddress -> current user wallet address
• botAddress -> bot wallet address (some calldata uses botAddress[2:])
• removes spaces/newlines/tabs via escapeAllStr

4. main.go (verbatim)

package main

import (
	"context"
	"log"
	"strings"

	"github.com/debox-pro/debox-chat-go-sdk/boxbotapi"
)

var (
	// Button texts
	homeInfoContent = "home content"

	eth_getBalance = "查账户余额"
	// eth_gasPrice                           = "查gas费"
	personal_sign                          = "personal_sign"
	eth_signTypedData_v4                   = "eth_signTypedData_v4"
	eth_sendTransaction_native             = "原生币转账"
	eth_sendTransaction_token_approve      = "Approve授权支付"
	eth_sendTransaction_token_TransferFrom = "第三方授权转账TransferFrom"
	eth_sendTransaction_Mint               = "Mint"
	eth_sendTransaction_token              = "合约币转账"
	eth_sendTransaction_swap               = "swap"
	eth_sendTransaction_deploy             = "合约部署"

	walletRequest = "debox://wallet/request"

	bot *boxbotapi.BotAPI
	// Keyboard layout for the second menu. Two buttons, one per row
	homeMenuMarkup = boxbotapi.NewInlineKeyboardMarkup(
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_getBalance, walletRequest, eth_getBalance, "#21C161"),
		),
		// boxbotapi.NewInlineKeyboardRow(
		// 	boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_gasPrice, walletRequest, eth_gasPrice, "#21C161"),
		// ),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", personal_sign, walletRequest, personal_sign, "#21C161"),
		),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_signTypedData_v4, walletRequest, eth_signTypedData_v4, "#21C161"),
		),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_native, walletRequest, eth_sendTransaction_native, "#21C161"),
		),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_token, walletRequest, eth_sendTransaction_token, "#21C161"),
		),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_swap, walletRequest, eth_sendTransaction_swap, "#21C161"),
		),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_token_approve, walletRequest, eth_sendTransaction_token_approve, "#21C161"),
		),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_token_TransferFrom, walletRequest, eth_sendTransaction_token_TransferFrom, "#21C161"),
		),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_Mint, walletRequest, eth_sendTransaction_Mint, "#21C161"),
		),
		// boxbotapi.NewInlineKeyboardRow(
		// 	boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_token, walletRequest, eth_sendTransaction_token, "#21C161"),
		// ),
		// boxbotapi.NewInlineKeyboardRow(
		// 	boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_swap, walletRequest, eth_sendTransaction_swap, "#21C161"),
		// ),
		boxbotapi.NewInlineKeyboardRow(
			boxbotapi.NewInlineKeyboardButtonDataWithColor("", eth_sendTransaction_deploy, walletRequest, eth_sendTransaction_deploy, "#21C161"),
		),
	)
)

func main() {
	var err error
	boxbotapi.MessageListener = true
	boxbotapi.Debug = true
	bot, err = boxbotapi.NewBotAPI("", "")
	if err != nil {
		// Abort if something is wrong
		log.Panic(err)
	}
	// Set this to true to log all interactions with debox servers

	u := boxbotapi.NewUpdate(0)
	u.Timeout = 30

	// Create a new cancellable background context. Calling `cancel()` leads to the cancellation of the context
	ctx := context.Background()
	// ctx, cancel := context.WithCancel(ctx)
	// `updates` is a golang channel which receives debox updates
	updates := bot.GetUpdatesChan(u)
	// Pass cancellable context to goroutine
	go receiveUpdates(ctx, updates)
	// Tell the user the bot is online
	log.Println("Start listening for updates. Press enter to stop")
	//new stop
	select {}
}
func receiveUpdates(ctx context.Context, updates boxbotapi.UpdatesChannel) {
	// `for {` means the loop is infinite until we manually stop it
	for {
		select {
		// stop looping if ctx is cancelled
		case <-ctx.Done():
			return
		// receive update from channel and then handle it
		case update := <-updates:
			handleUpdate(update)
		}
	}
}
func handleUpdate(update boxbotapi.Update) {
	switch {
	// Handle messages
	case update.Message != nil:
		handleMessage(update.Message)
		break

	// Handle button clicks
	case update.CallbackQuery != nil:
		handleButton(update.CallbackQuery)
		break
	}
}
func handleMessage(message *boxbotapi.Message) {
	user := message.From
	text := message.Text
	botAddress := bot.Self.Address

	if user == nil {
		return
	}
	// Print to console
	log.Printf("%s wrote %s", user.Name, text)
	var err error
	if len(text) > 0 {
		msg := boxbotapi.NewMessage(message.Chat.ID, message.Chat.Type, message.Text)
		msg.ParseMode = boxbotapi.ModeHTML
		if text == "/start" {
			msg.Text = homeInfoContent
			msg.ReplyMarkup = homeMenuMarkup
			var eth_getBalanceStr = `{
							"jsonrpc": "2.0",
							"id":      101,
 							"method": "eth_getBalance",
							"params": [
							{ "chainId": "0x38" },
							"selfAddress",
							"latest"
							]
						}`

			//hexString := hex.EncodeToString(byteData)
			var personal_signStr = `{
						"jsonrpc": "2.0",
						"id": 102,
						"method": "personal_sign",
						"params": [
						{ "chainId": "0x38" },
						"0x506c65617365207369676e2074686973206d65737361676520746f20636f6e6669726d20796f7572206964656e746974792e",
						"selfAddress"
						]
					}`

			//typedata_v4
			// 使用 any 类型代替 interface{}
			var eth_signTypedData_v4Str = `{
							"jsonrpc": "2.0",
							"id": 103,
							"method": "eth_signTypedData_v4",
							"params": [
							"selfAddress",
							{
								"types": {
								"EIP712Domain": [
									{
									"name": "name",
									"type": "string"
									},
									{
									"name": "version",
									"type": "string"
									},
									{
									"name": "chainId",
									"type": "uint256"
									},
									{
									"name": "verifyingContract",
									"type": "address"
									}
								],
								"Person": [
									{
									"name": "name",
									"type": "string"
									},
									{
									"name": "wallet",
									"type": "address"
									}
								],
								"Mail": [
									{
									"name": "from",
									"type": "Person"
									},
									{
									"name": "to",
									"type": "Person"
									},
									{
									"name": "contents",
									"type": "string"
									}
								]
								},
								"primaryType": "Mail",
								"domain": {
								"name": "Ether Mail",
								"version": "1",
								"chainId": 1,
								"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
								},
								"message": {
								"from": {
									"name": "Cow",
									"wallet": "selfAddress"
								},
								"to": {
									"name": "Bob",
									"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"
								},
								"contents": "Hello, Bob!"
								}
							}
							]
						}`
			var eth_sendTransactionStrNative = `{
											"jsonrpc": "2.0",
											"id": 104,
											"method": "eth_sendTransaction",
											"params": [
											{
												"chainId": "0x38",
												"to": "botAddress",
												"from": "selfAddress",
												"gas": "0x76c0",
												"value": "0x38D7EA4C68000",
												"data": "0x",
												"gasPrice": "0x4a817c800"
											}
											]
										}`
			var eth_sendTransactionStrToken = `{
											"jsonrpc": "2.0",
											"id": 105,
											"method": "eth_sendTransaction",
											"params": [
											{
												"chainId": "0x38",
												"from": "selfAddress",
												"to": "0x6386Adc4BC9c21984E34fD916BB349dD861742af",
												"value": "0x0",
												"data": "0xa9059cbb000000000000000000000000botAddress0000000000000000000000000000000000000000000000000de0b6b3a7640000",
												"gas": "0x76c0",
												"gasPrice": "0x4a817c800"
											}
											]
										}`
			var eth_sendTransactionApproveStr = `{
  "jsonrpc": "2.0",
  "id": 106,
  "method": "eth_sendTransaction",
  "params": [
    {
      "chainId": "0x38",
      "from": "selfAddress",
      "to": "0x6386Adc4BC9c21984E34fD916BB349dD861742af",
      "gas": "0xb89b",
      "gasPrice": "0x5d27a277",
      "value": "0x0",
      "data": "0x095ea7b3000000000000000000000000botAddress0000000000000000000000000000000000000000000000000de0b6b3a7640000"
    }
  ]
}`

			var sendTransactionStrTransferFrom = `{
	"jsonrpc": "2.0",
	"id": 106,
	"method": "eth_sendTransaction",
	"params": [
	{
		"from": "selfAddress", 
		"chainId":"0x38",
		"data": "0x23b872dd000000000000000000000000cba3fce9d49ce5d7870443f324a8dd56a5788bfc0000000000000000000000006c663ff4b23ba3452e5ad1ad0c567e54b5ceee2e0000000000000000000000000000000000000000000000000de0b6b3a7640000", 
		"gas": "0xad12", 
		"gasPrice": "0x596c5e37", 
		"to": "0x6386Adc4BC9c21984E34fD916BB349dD861742af", 
		"value": "0x0"
	}
	]
}`
			var sendTransactionStrMint = `{
											"jsonrpc": "2.0",
											"id": 106,
											"method": "eth_sendTransaction",
											"params": [
											    {
													"chainId":"0xa",
													"from": "selfAddress",
													"data": "0x3b4b1381000000000000000000000000000000000000000000000000000000000000000a",
													"gas": "0x5135c",
													"gasPrice": "0x18df9",
													"to": "0x98c56f0903d1cb0c7eaedb91fb9d58409bbb1fbe",
													"value": "0x0"
													}
										  ]
										}`

			var sendTransactionStrSwap = `{
											"jsonrpc": "2.0",
											"id": 106,
											"method": "swap",
											"params": [
											{
												"fromAddress": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
												"toAddress": "0x6386Adc4BC9c21984E34fD916BB349dD861742af",
												"fromChainId": "0x38",
												"toChainId": "0x38"
											}
											]
										}`
			var sendTransactionStrDeploy = `{
    "id": 4218609415,
    "jsonrpc": "2.0",
    "method": "eth_sendTransaction",
    "params": [
		{
			"chainId":"0x38",
		"from": "selfAddress",
		"data":"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		"gas": "0x26e8af",
		"gasPrice": "0x18e17",
		"value": "0x0"
		}
    ]
}`

			// balanceParamsStr, _ := json.Marshal(balanceParams)
			eth_getBalanceStr = escapeAllStr(eth_getBalanceStr, "selfAddress", user.Address)
			personal_signStr = escapeAllStr(personal_signStr, "selfAddress", user.Address)
			eth_signTypedData_v4Str = escapeAllStr(eth_signTypedData_v4Str, "selfAddress", user.Address)

			eth_sendTransactionStrNative = escapeAllStr(eth_sendTransactionStrNative, "selfAddress", user.Address)
			eth_sendTransactionStrNative = escapeAllStr(eth_sendTransactionStrNative, "botAddress", botAddress)

			eth_sendTransactionStrToken = escapeAllStr(eth_sendTransactionStrToken, "selfAddress", user.Address)
			eth_sendTransactionStrToken = escapeAllStr(eth_sendTransactionStrToken, "botAddress", botAddress[2:])

			sendTransactionStrSwap = escapeAllStr(sendTransactionStrSwap, "selfAddress", user.Address)

			eth_sendTransactionApproveStr = escapeAllStr(eth_sendTransactionApproveStr, "selfAddress", user.Address)
			eth_sendTransactionApproveStr = escapeAllStr(eth_sendTransactionApproveStr, "botAddress", botAddress[2:])

			sendTransactionStrTransferFrom = escapeAllStr(sendTransactionStrTransferFrom, "selfAddress", user.Address)

			sendTransactionStrMint = escapeAllStr(sendTransactionStrMint, "selfAddress", user.Address)

			sendTransactionStrDeploy = escapeAllStr(sendTransactionStrDeploy, "selfAddress", user.Address)
			homeMenuMarkup.InlineKeyboard[0][0].CallbackData = &eth_getBalanceStr
			homeMenuMarkup.InlineKeyboard[1][0].CallbackData = &personal_signStr
			homeMenuMarkup.InlineKeyboard[2][0].CallbackData = &eth_signTypedData_v4Str
			homeMenuMarkup.InlineKeyboard[3][0].CallbackData = &eth_sendTransactionStrNative
			//合约币转账
			homeMenuMarkup.InlineKeyboard[4][0].CallbackData = &eth_sendTransactionStrToken
			homeMenuMarkup.InlineKeyboard[5][0].CallbackData = &sendTransactionStrSwap
			homeMenuMarkup.InlineKeyboard[6][0].CallbackData = &eth_sendTransactionApproveStr
			homeMenuMarkup.InlineKeyboard[7][0].CallbackData = &sendTransactionStrTransferFrom
			homeMenuMarkup.InlineKeyboard[8][0].CallbackData = &sendTransactionStrMint
			homeMenuMarkup.InlineKeyboard[9][0].CallbackData = &sendTransactionStrDeploy

			_, err = bot.Send(msg)
		}

	}
	if err != nil {
		log.Printf("An error occured: %s", err.Error())
	}
}
func escapeAllStr(text, old, new string) string {
	text = strings.ReplaceAll(text, "\n", "")
	text = strings.ReplaceAll(text, "\t", "")
	text = strings.ReplaceAll(text, " ", "")
	text = strings.ReplaceAll(text, old, new)
	return text
}
func handleButton(query *boxbotapi.CallbackQuery) {
	message := query.Message
	var text = query.Data

	markup := boxbotapi.NewInlineKeyboardMarkup()
	markup = homeMenuMarkup

	// Replace menu text and keyboard
	msg := boxbotapi.NewEditMessageTextAndMarkup(message.Chat.ID, message.Chat.Type, message.MessageID, text, markup)
	msg.ParseMode = boxbotapi.ModeHTML
	bot.Send(msg)
}