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hamssog

Posted on Originally published at hamssog.substack.com

Building a Pons Trading Terminal with TypeScript: Multi-Wallet Trading and Live Execution

#typescript #blockchain #robinhood #tradingbot

A Pons trading terminal should do more than display token prices.

The useful version is an interface where a trader can manage wallets, inspect market data, preview a trade, control risk, execute transactions, monitor their status, and see the resulting position.

The goal of this article is not to repeat the architecture from my earlier Pons Trading Terminal article.

Instead, this is the implementation side:

TOKEN
  ↓
MARKET DATA
  ↓
WALLET SELECTION
  ↓
TRADE PREVIEW
  ↓
RISK CHECK
  ↓
EXECUTION
  ↓
TRANSACTION STATE
  ↓
POSITION
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The current Pons documentation provides the contract and market-data integration surface for applications on Robinhood Chain, which uses chain ID 4663.

What the Terminal Needs to Solve

A trader should be able to open a token and answer three questions quickly:

What is happening?

What can I trade?

What will happen if I execute?

That means a useful terminal needs more than:

Price
Buy
Sell
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A practical version should also expose:

Wallets
Balances
Liquidity
Recent trades
Quote
Slippage
Risk
Transaction status
Positions
Portfolio
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The UI is the visible part.

The trading backend is responsible for making those values reliable.

1. Start With the Trading Workspace

The main trading screen can combine the most important information into one workspace:

┌──────────────────────────────────────────────┐
│ Token / Market                               │
│ Price · Liquidity · Volume                   │
├──────────────────────────┬───────────────────┤
│ Chart / Activity         │ Trade Panel       │
│                          │                   │
│                          │ Wallets           │
│                          │ Amount            │
│                          │ Slippage          │
│                          │ Risk              │
│                          │ Review            │
└──────────────────────────┴───────────────────┘
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The user shouldn't need to switch between five pages just to make one trade.

2. Keep the Browser Out of the Execution Logic

The frontend should not become the blockchain execution engine.

A better structure is:

React / Next.js
       ↓
Trading API
       ↓
Execution Service
       ↓
Pons Integration
       ↓
Robinhood Chain
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This keeps:

wallet state
quotes
risk
transactions
reconciliation
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in the backend where they can be shared by the terminal, sniper, copy-trading system, and other automation.

This is also consistent with the architecture in my earlier Pons terminal work, where the frontend is treated as a consumer of backend trading state.

3. Wallet Selection

Multi-wallet support changes the terminal substantially.

Instead of:

Wallet
↓
Trade
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the interface can provide:

☑ Wallet A
☑ Wallet B
☐ Wallet C
☑ Wallet D
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and show:

Selected wallets: 3
Available balance: ...
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A backend representation could be:

type TradingWallet = {
  id: string;
  address: `0x${string}`;
  enabled: boolean;
  balanceAtomic: bigint;
};
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The frontend should never receive private keys.

It only receives wallet metadata and the information needed for the current workflow.

4. Select the Token

The terminal needs a clean token-selection flow.

For example:

Search token
      ↓
Resolve token
      ↓
Load market state
      ↓
Open trading workspace
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The market view can show:

Symbol
Price
Liquidity
Volume
Pool / market
Recent trades
Launch information
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For current Pons v1 markets, the official documentation describes token-specific pools and provides the integration data needed to resolve pool and token state. Pons v2 is a separate bonding-curve architecture and should be handled as a different execution mode.

That distinction matters when building the terminal backend.

5. Build a Trade Preview

Before a transaction is sent, the user should be able to see what the system intends to do.

Example:

TRADE PREVIEW

Token:
MEMESTOCK

Wallets:
A, B, D

Side:
BUY

Total input:
0.09 ETH

Expected tokens:
...

Minimum tokens:
...

Slippage:
1%

Estimated gas:
...

Risk:
PASS
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The user then clicks:

REVIEW TRADE
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and only after that:

CONFIRM
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This gives the terminal a human-readable execution checkpoint.

6. Quote and Risk Are Different

The quote answers:

What do I approximately receive?

The risk engine answers:

Am I allowed to do this?

For example:

Quote
$800
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but:

Maximum trade
$500
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The trade should be reduced or rejected.

The same applies to:

maximum position
portfolio exposure
slippage
price impact
available balance
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A useful separation is:

Trade Request
     ↓
Quote
     ↓
Risk Decision
     ↓
Execution
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The UI can then show:

Quote       ✓
Balance     ✓
Position    ✓
Slippage    ✓
Risk        APPROVED
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7. Keep Units Explicit

Trading terminals have to deal with multiple units.

I would keep them separate in TypeScript:

type TokenAmount = bigint;
type QuoteAmount = bigint;
type BasisPoints = bigint;
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For example:

type TradePreview = {
  tokenAmount: TokenAmount;
  quoteAmount: QuoteAmount;
  slippageBps: BasisPoints;
};
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This prevents a common class of mistakes where blockchain atomic units are accidentally mixed with human-readable dollar values.

The UI can convert values for display.

The backend should keep exact values internally.

8. Multi-Wallet Execution

Suppose the user selects:

Wallet A → 0.02 ETH
Wallet B → 0.02 ETH
Wallet D → 0.05 ETH
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The terminal should create separate execution records.

Wallet A
   ↓
Transaction A

Wallet B
   ↓
Transaction B

Wallet D
   ↓
Transaction D
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The terminal should not assume that these transactions are one atomic operation.

This distinction is especially important when the terminal is later connected to the Pons bundler workflow, where the launch transaction and additional wallet transactions have different execution characteristics.

9. Track Every Transaction Separately

The UI should show live state:

Wallet A     ✓ Confirmed
Wallet B     ● Pending
Wallet D     ✕ Failed
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A useful backend model:

type ExecutionStatus =
  | "CREATED"
  | "PREVIEWED"
  | "SUBMITTED"
  | "PENDING"
  | "CONFIRMED"
  | "FAILED"
  | "UNKNOWN";
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Then the frontend simply subscribes to execution state.

This is much more useful than returning only:

{
  "success": true
}
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10. Transaction State Should Survive Refreshes

Suppose the user closes the browser immediately after clicking Buy.

When they return, the terminal should still know:

Order:
0x1234...

Status:
PENDING
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The browser should not be the source of transaction state.

The backend should persist it.

Transaction
    ↓
Database
    ↓
API
    ↓
Frontend
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This is one of the reasons I prefer treating execution as a service rather than a React component.

11. RPC Timeouts Need Their Own State

An RPC timeout should not automatically be rendered as:

FAILED
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A transaction may already have been submitted.

The terminal should be able to show:

UNKNOWN
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and then reconcile.

RPC timeout
     ↓
UNKNOWN
     ↓
Check transaction
     ↓
Confirmed / Failed
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This makes the interface more truthful and reduces the risk of users or automation resubmitting the same trade unnecessarily.

12. Position Updates Come After Execution

The terminal should not update the position merely because the user clicked Confirm.

The actual position flow is:

Trade request
     ↓
Transaction
     ↓
Receipt / onchain result
     ↓
Position update
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For example:

Requested:
100,000 TOKEN

Actual result:
96,420 TOKEN

Position:
96,420 TOKEN
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The terminal should display the actual state.

13. Portfolio State

Once positions are available, the terminal can aggregate them.

Example:

Portfolio

MEMESTOCK       $4,320
TOKEN X         $2,145
TOKEN Y         $1,890
WETH            $3,210
-----------------------
Total          $11,565
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Then:

Wallet A    $4,100
Wallet B    $3,700
Wallet D    $3,765
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This lets the same product function as both a trading interface and portfolio dashboard.

14. Transaction History

The terminal should retain a complete execution history:

Time
Wallet
Token
Side
Amount
Status
Transaction
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Example:

09:42
Wallet A
MEMESTOCK
BUY
0.02 ETH
Confirmed

09:43
Wallet B
MEMESTOCK
BUY
0.02 ETH
Pending
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Clicking the transaction should expose the onchain transaction reference.

This gives the user an audit trail.

15. Live Data

The trading interface should not require a manual browser refresh after every event.

A useful setup is:

Blockchain
    ↓
Indexer
    ↓
Backend State
    ↓
WebSocket / SSE
    ↓
Trading Terminal
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The terminal can then update:

price
trades
wallet activity
transaction status
positions
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in near real time.

The earlier Pons Launch Monitor article already established this data layer as a reusable source for the trading terminal, sniper, copy trading, and analytics.

That is why the terminal should consume the data layer rather than rebuild it.

16. Manual Trading and Automated Trading

One useful design choice is allowing the same execution infrastructure to support different entry points.

Manual:

User
 ↓
Trade Panel
 ↓
Risk
 ↓
Execution
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Copy trading:

Wallet Signal
 ↓
Copy Strategy
 ↓
Risk
 ↓
Execution
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Sniper:

Launch Signal
 ↓
Sniper Strategy
 ↓
Risk
 ↓
Execution
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All three can update:

Transactions
Positions
Portfolio
Alerts
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The terminal becomes the control surface.

17. Alerts

A terminal should notify users about meaningful state changes.

For example:

Trade confirmed
Transaction failed
Position changed
Wallet activity detected
Risk limit reached
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The notification layer can support:

Web
Telegram
Discord
Webhook
Email
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The same service can later be reused by the Pons wallet tracker and copy-trading system.

18. Risk Controls in the UI

Risk settings should be visible and configurable.

For example:

Maximum trade:
$1,000

Maximum position:
$5,000

Maximum slippage:
1%

Maximum price impact:
3%

Daily allocation:
$10,000
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The terminal can show:

Risk Status

Trade size       ✓
Balance          ✓
Position         ✓
Slippage         ✓

READY
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This makes risk understandable to users who aren't reading backend logs.

19. A Better Terminal for Different Clients

Not every client needs the same product.

Simple terminal 

Wallet
Token
Buy
Sell
Positions
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Multi-wallet terminal 

Wallet groups
Bulk trading
Allocation
Execution monitoring
Portfolio
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Sniper terminal 

Launch feed
Token filters
Entry controls
Automated execution
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Copy-trading terminal 

Tracked wallets
Copy settings
Signals
Risk
Execution
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Full trading platform 

Markets
Trading
Wallets
Strategies
Risk
Positions
Portfolio
Analytics
Alerts
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The same engineering foundation can support all of these.

20. From MVP to Full Product

A client does not have to build everything on day one.

A practical MVP:

Wallets
Token Search
Token Page
Buy / Sell
Transaction History
Positions
Portfolio
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Then add:

Multi-wallet
Risk Controls
Alerts
Automation
Copy Trading
Sniper
Analytics
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This lets a project start with a smaller scope and grow as requirements become clearer.

21. Suggested Backend Structure

A reusable backend can separate:

src/
├── market/
├── wallets/
├── quotes/
├── risk/
├── execution/
├── transactions/
├── positions/
├── portfolio/
├── alerts/
└── api/
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The frontend can then remain focused on:

routes
components
state
charts
forms
tables
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rather than protocol-specific transaction logic.

22. Connecting the Terminal to the Existing Pons Stack

This is where the earlier articles become useful.

Your current Pons content already covers:

Launch Monitor → data

Wallet Tracker → wallet activity

Copy Trading → strategy

Sniper → launch strategy

Bundler → multi-wallet execution

The terminal can become the interface connecting those capabilities:

Pons Data
   ↓
Trading Terminal
   ├── Manual Trading
   ├── Sniper
   ├── Copy Trading
   ├── Bundler
   └── Portfolio
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That creates a much stronger product story than treating every article as a standalone project.

23. The Development Opportunity

A client may already have:

A trading bot
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but no interface.

Or:

A dashboard
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but no reliable execution backend.

Or:

An MVP
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but no multi-wallet support.

Or:

A strategy
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but no portfolio/reconciliation layer.

The terminal can be built around whichever part is missing.

That means a custom project doesn't always need to start from zero.

24. What I Would Build

For a full Pons terminal, I would aim for:

Market Discovery
+
Wallet Management
+
Trade Preview
+
Risk Controls
+
Execution
+
Transaction Monitoring
+
Positions
+
Portfolio
+
Alerts
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Then connect optional strategy modules:

Sniper
Copy Trading
Bundler
Automation
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This provides one interface while keeping the underlying systems modular.

Final Takeaway

A Pons trading terminal should be more than a dashboard.

It should be the interface through which a user can:

Discover
Trade
Manage Wallets
Control Risk
Monitor Transactions
Track Positions
Manage Portfolio
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The most useful implementation pattern is to keep the terminal itself relatively thin:

Frontend
    ↓
Trading API
    ↓
Market / Risk / Execution
    ↓
  Pons
    ↓
Robinhood Chain
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That lets the same backend support manual trading, sniper strategies, copy trading, bundling, and future automation.

The terminal then becomes the product layer sitting above your existing Pons infrastructure.

Custom Pons Trading Terminal Development

I build custom Pons and Robinhood Chain trading products, including:

Pons trading terminals
Multi-wallet trading interfaces
Pons sniper dashboards
Pons copy-trading platforms
Pons bundlers
Wallet analytics
Risk and execution systems
Portfolio dashboards
Trading APIs

Projects can start from an idea, an existing bot, an existing codebase, or an MVP and expand into a larger trading platform.

The objective is to build the terminal around the client's workflow—not force the client into a generic trading interface.

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