gdex-ui-trading-components

React component patterns for GDEX trading UIs — order entry forms, position tables, copy trade panels, orderbook displays, and PnL views

SKILL.md

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GDEX: Trading UI Components

React component patterns for building trading interfaces with the GDEX SDK. Each component shows the props interface, SDK method it calls, and state management pattern.

When to Use

  • Building a spot or perp trading form
  • Displaying open positions or orders
  • Creating a copy trade management panel
  • Showing PnL or orderbook data

Prerequisites

  • GDEX SDK context provider set up — see gdex-ui-install-setup
  • Wallet sign-in via AuthProvider.loginWithWallet() — see gdex-ui-wallet-connection. It runs the managed-custody sign-in and exposes creds ({ apiKey, walletAddress, sessionPrivateKey }, walletAddress = control wallet) and managedAddress. Every write call below takes creds; loginWithApiKey() alone only covers read-only data.

Spot Trade Form

// components/SpotTradeForm.tsx
'use client';

import { useState } from 'react';
import { useGdex } from '@/providers/GdexProvider';
import { useAuth } from '@/providers/AuthProvider';

interface SpotTradeFormProps {
  defaultChain?: string;
  onTradeComplete?: (result: any) => void;
}

export function SpotTradeForm({ defaultChain = 'solana', onTradeComplete }: SpotTradeFormProps) {
  const { skill, isReady } = useGdex();
  const { creds } = useAuth();
  const [mode, setMode] = useState<'buy' | 'sell'>('buy');
  const [chain, setChain] = useState(defaultChain);
  const [tokenAddress, setTokenAddress] = useState('');
  const [amount, setAmount] = useState('');
  const [slippage, setSlippage] = useState(1);
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState<string | null>(null);

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    if (!isReady || !creds) return;
    setLoading(true);
    setError(null);
    try {
      const chainArg = /^\d+$/.test(chain) ? Number(chain) : chain; // numeric ChainId or 'solana' / 'sui'
      const result = mode === 'buy'
        ? await skill.buyToken({ chain: chainArg, tokenAddress, amount, slippage, ...creds })
        : await skill.sellToken({ chain: chainArg, tokenAddress, amount, slippage, walletAddress: creds.walletAddress });
      onTradeComplete?.(result);
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Trade failed');
    } finally {
      setLoading(false);
    }
  };

  return (
    <form onSubmit={handleSubmit} className="space-y-4">
      {/* Buy / Sell toggle */}
      <div className="flex gap-2">
        <button type="button" onClick={() => setMode('buy')}
          className={mode === 'buy' ? 'bg-green-600 text-white' : 'bg-gray-200'}>
          Buy
        </button>
        <button type="button" onClick={() => setMode('sell')}
          className={mode === 'sell' ? 'bg-red-600 text-white' : 'bg-gray-200'}>
          Sell
        </button>
      </div>

      {/* Chain selector */}
      <select value={chain} onChange={e => setChain(e.target.value)}>
        <option value="solana">Solana</option>
        <option value="8453">Base</option>
        <option value="42161">Arbitrum</option>
        <option value="1">Ethereum</option>
        <option value="56">BSC</option>
        <option value="sui">Sui</option>
      </select>

      <input placeholder="Token address" value={tokenAddress}
        onChange={e => setTokenAddress(e.target.value)} required />
      <input type="number" placeholder="Amount" value={amount}
        onChange={e => setAmount(e.target.value)} step="any" min="0" required />
      <input type="number" placeholder="Slippage %" value={slippage}
        onChange={e => setSlippage(Number(e.target.value))} step="0.1" min="0.1" max="50" />

      {error && <p className="text-red-500">{error}</p>}
      <button type="submit" disabled={loading || !isReady}>
        {loading ? 'Executing...' : `${mode === 'buy' ? 'Buy' : 'Sell'} Token`}
      </button>
    </form>
  );
}

SDK methods called: skill.buyToken(), skill.sellToken()

Perp Order Form

// components/PerpOrderForm.tsx
'use client';

import { useState } from 'react';
import { useGdex } from '@/providers/GdexProvider';
import { useAuth } from '@/providers/AuthProvider';

interface PerpOrderFormProps {
  onOrderPlaced?: (result: any) => void;
}

export function PerpOrderForm({ onOrderPlaced }: PerpOrderFormProps) {
  const { skill, isReady } = useGdex();
  const { creds } = useAuth();
  const [coin, setCoin] = useState('BTC');
  const [side, setSide] = useState<'long' | 'short'>('long');
  const [sizeUsd, setSizeUsd] = useState('');
  const [leverage, setLeverage] = useState(5);
  const [takeProfitPrice, setTakeProfitPrice] = useState('');
  const [stopLossPrice, setStopLossPrice] = useState('');
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState<string | null>(null);

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    if (!isReady || !creds) return;
    setLoading(true);
    setError(null);
    try {
      // hlCreateOrder takes size in contracts (coin units): convert the USD notional at the mark price
      const mark = await skill.getHlMarkPrice(coin);
      const size = (Number(sizeUsd) / mark).toFixed(5); // round to the market's szDecimals in production
      const result = await skill.hlCreateOrder({
        coin,
        isLong: side === 'long',
        price: String(mark),
        size,
        isMarket: true,
        leverage,                   // sent top-level with the order
        tpPrice: takeProfitPrice,   // '' skips TP
        slPrice: stopLossPrice,     // '' skips SL
        ...creds,
      });
      onOrderPlaced?.(result);
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Order failed');
    } finally {
      setLoading(false);
    }
  };

  return (
    <form onSubmit={handleSubmit} className="space-y-4">
      <div className="flex gap-2">
        <button type="button" onClick={() => setSide('long')}
          className={side === 'long' ? 'bg-green-600 text-white' : 'bg-gray-200'}>
          Long
        </button>
        <button type="button" onClick={() => setSide('short')}
          className={side === 'short' ? 'bg-red-600 text-white' : 'bg-gray-200'}>
          Short
        </button>
      </div>

      <select value={coin} onChange={e => setCoin(e.target.value)}>
        <option value="BTC">BTC</option>
        <option value="ETH">ETH</option>
        <option value="SOL">SOL</option>
        <option value="ARB">ARB</option>
      </select>

      <input type="number" placeholder="Size (USD)" value={sizeUsd}
        onChange={e => setSizeUsd(e.target.value)} min="10" required />
      <input type="range" min="1" max="50" value={leverage}
        onChange={e => setLeverage(Number(e.target.value))} />
      <span>Leverage: {leverage}×</span>

      <input type="number" placeholder="Take Profit Price (optional)" value={takeProfitPrice}
        onChange={e => setTakeProfitPrice(e.target.value)} step="any" />
      <input type="number" placeholder="Stop Loss Price (optional)" value={stopLossPrice}
        onChange={e => setStopLossPrice(e.target.value)} step="any" />

      {error && <p className="text-red-500">{error}</p>}
      <button type="submit" disabled={loading || !isReady}
        className={side === 'long' ? 'bg-green-600' : 'bg-red-600'}>
        {loading ? 'Placing...' : `${side === 'long' ? 'Long' : 'Short'} ${coin}`}
      </button>
    </form>
  );
}

SDK methods called: skill.getHlMarkPrice(), skill.hlCreateOrder()

Position Table

// components/PositionTable.tsx
'use client';

import { useState, useEffect, useCallback } from 'react';
import { useGdex } from '@/providers/GdexProvider';
import { useAuth } from '@/providers/AuthProvider';

export function PositionTable({ pollInterval = 10000 }: { pollInterval?: number }) {
  const { skill, isReady } = useGdex();
  const { creds, managedAddress } = useAuth();
  const [positions, setPositions] = useState<any[]>([]);

  // Positions live on the managed EVM wallet, not the control wallet
  const refresh = useCallback(async () => {
    if (!isReady || !managedAddress) return;
    setPositions(await skill.getPerpPositions({ walletAddress: managedAddress }));
  }, [skill, isReady, managedAddress]);

  useEffect(() => {
    refresh();
    const id = setInterval(refresh, pollInterval);
    return () => clearInterval(id);
  }, [refresh, pollInterval]);

  if (!positions.length) return <p className="text-gray-500">No open positions</p>;

  return (
    <table className="w-full text-sm">
      <thead>
        <tr className="text-left border-b">
          <th>Asset</th><th>Side</th><th>Size</th><th>Entry</th>
          <th>Mark</th><th>PnL</th><th>Leverage</th><th>Actions</th>
        </tr>
      </thead>
      <tbody>
        {positions.map((pos, i) => {
          // PerpPosition: { coin, side, size, entryPrice, markPrice, leverage, unrealizedPnl, liquidationPrice }
          const pnl = Number(pos.unrealizedPnl ?? 0);
          const isLong = pos.side === 'long';
          return (
            <tr key={i} className="border-b">
              <td>{pos.coin}</td>
              <td className={isLong ? 'text-green-500' : 'text-red-500'}>
                {isLong ? 'LONG' : 'SHORT'}
              </td>
              <td>{pos.size}</td>
              <td>${Number(pos.entryPrice ?? 0).toFixed(2)}</td>
              <td>${Number(pos.markPrice ?? 0).toFixed(2)}</td>
              <td className={pnl >= 0 ? 'text-green-500' : 'text-red-500'}>
                ${Number(pnl).toFixed(2)}
              </td>
              <td>{pos.leverage ?? '—'}×</td>
              <td>
                <button
                  onClick={() => {
                    if (creds && managedAddress) void skill.closePerpPosition({ ...creds, coin: pos.coin, positionAddress: managedAddress });
                  }}
                  className="text-red-500 hover:underline">
                  Close
                </button>
              </td>
            </tr>
          );
        })}
      </tbody>
    </table>
  );
}

SDK methods called: skill.getPerpPositions(), skill.closePerpPosition()

Copy Trade Panel

// components/CopyTradePanel.tsx
'use client';

import { useState, useEffect } from 'react';
import { buildGdexUserSessionData } from '@gemachdao/gdex-skill';
import { useGdex } from '@/providers/GdexProvider';
import { useAuth } from '@/providers/AuthProvider';

export function CopyTradePanel({ sessionKey }: { sessionKey: string }) {
  const { skill, isReady } = useGdex();
  const { creds } = useAuth();
  const [activeTrades, setActiveTrades] = useState<any[]>([]);
  const [topTraders, setTopTraders] = useState<any[]>([]);
  const [tab, setTab] = useState<'active' | 'discover'>('active');

  useEffect(() => {
    if (!isReady || !creds) return;
    // Load the user's copy trades (Solana sign-in; data = encrypted session key)
    skill.getCopyTradeList({
      userId: creds.walletAddress,
      data: buildGdexUserSessionData(sessionKey, creds.apiKey),
    }).then((r) => setActiveTrades(r.allCopyTrades ?? [])).catch(() => {});
    // Load top traders for discovery (no auth)
    skill.getCopyTradeWallets().then((w) => setTopTraders(w.slice(0, 10))).catch(() => {});
  }, [skill, isReady, creds, sessionKey]);

  return (
    <div>
      <div className="flex gap-2 mb-4">
        <button onClick={() => setTab('active')}
          className={tab === 'active' ? 'font-bold border-b-2' : ''}>
          Active ({activeTrades.length})
        </button>
        <button onClick={() => setTab('discover')}
          className={tab === 'discover' ? 'font-bold border-b-2' : ''}>
          Discover
        </button>
      </div>

      {tab === 'active' && (
        <div className="space-y-2">
          {activeTrades.map((trade, i) => (
            <div key={i} className="border rounded p-3 flex justify-between">
              <div>
                <p className="font-mono text-sm">{trade.traderWallet}</p>
                <p className="text-xs text-gray-500">{trade.copyTradeName}</p>
              </div>
              <span className="text-sm">
                {trade.buyMode === 1 ? `${trade.copyBuyFixedAmount} SOL` : `${trade.copyBuyPercent}%`}
              </span>
            </div>
          ))}
          {!activeTrades.length && <p className="text-gray-500">No active copy trades</p>}
        </div>
      )}

      {tab === 'discover' && (
        <div className="space-y-2">
          {topTraders.map((trader, i) => (
            <div key={i} className="border rounded p-3 flex justify-between items-center">
              <div>
                <p className="font-mono text-sm">{trader.address}</p>
                <p className="text-xs text-green-500">PnL: {trader.totalPnl}</p>
              </div>
              <button className="bg-blue-600 text-white px-3 py-1 rounded text-sm">
                Copy
              </button>
            </div>
          ))}
        </div>
      )}
    </div>
  );
}

SDK methods called: skill.getCopyTradeList(), skill.getCopyTradeWallets()

PnL Display

// components/PnLDisplay.tsx
interface PnLDisplayProps {
  value: number;
  label?: string;
  showSign?: boolean;
  currency?: string;
}

export function PnLDisplay({ value, label, showSign = true, currency = '$' }: PnLDisplayProps) {
  const isPositive = value >= 0;
  const formatted = `${showSign && isPositive ? '+' : ''}${currency}${Math.abs(value).toFixed(2)}`;

  return (
    <div className="text-center">
      {label && <p className="text-xs text-gray-500 mb-1">{label}</p>}
      <p className={`text-lg font-bold ${isPositive ? 'text-green-500' : 'text-red-500'}`}>
        {formatted}
      </p>
    </div>
  );
}

Token Search with Autocomplete

// components/TokenSearch.tsx
'use client';

import { useState, useCallback } from 'react';
import type { SupportedChain } from '@gemachdao/gdex-skill';
import { useGdex } from '@/providers/GdexProvider';
import { debounce } from '@/utils/debounce'; // simple debounce utility

interface TokenSearchProps {
  chain: SupportedChain;
  onSelect: (token: { address: string; symbol: string; name: string }) => void;
}

export function TokenSearch({ chain, onSelect }: TokenSearchProps) {
  const { skill, isReady } = useGdex();
  const [query, setQuery] = useState('');
  const [results, setResults] = useState<any[]>([]);

  const search = useCallback(
    debounce(async (q: string) => {
      if (!isReady || q.length < 2) { setResults([]); return; }
      const data = await skill.getTokenDetails({ chain, tokenAddress: q });
      setResults(data ? [data] : []);
    }, 300),
    [skill, isReady, chain]
  );

  return (
    <div className="relative">
      <input placeholder="Token address or symbol" value={query}
        onChange={e => { setQuery(e.target.value); search(e.target.value); }} />
      {results.length > 0 && (
        <ul className="absolute bg-white border rounded shadow-lg w-full z-10">
          {results.map((token, i) => (
            <li key={i} onClick={() => { onSelect(token); setResults([]); setQuery(token.symbol); }}
              className="p-2 hover:bg-gray-100 cursor-pointer">
              <span className="font-bold">{token.symbol}</span> — {token.name}
            </li>
          ))}
        </ul>
      )}
    </div>
  );
}

SDK method called: skill.getTokenDetails()

Component → SDK Method Reference

Component SDK Method Skill
SpotTradeForm buyToken(), sellToken() gdex-spot-trading
PerpOrderForm getHlMarkPrice(), hlCreateOrder() gdex-perp-trading
PositionTable getPerpPositions(), closePerpPosition() gdex-perp-trading
CopyTradePanel getCopyTradeList(), getCopyTradeWallets() gdex-copy-trading
PnLDisplay (display only) —
TokenSearch getTokenDetails() gdex-token-discovery

Backend Quirks Affecting UI (Live-Tested)

  1. Spot trading amounts in managed custody are RAW UNITS (lamports/wei), not human-readable. The SpotTradeForm above uses skill.buyToken() which handles conversion, but if using submitManagedPurchase() directly, convert first.
  2. hlCloseAll is unreliable — the PositionTable close button uses closePerpPosition() per coin (a reduce-only order for the live size), not skill.hlCloseAll().
  3. Solana Meteora tokens fail — if building a token selector, filter out dexId === 'meteora' tokens to avoid failed trades.
  4. Leverage goes on the order — the slider value is passed as leverage to hlCreateOrder() (sent top-level with the order). The standalone hlUpdateLeverage endpoint returns 404.
  5. getTopTraders() needs numeric chainId — use 622112261, not 'solana'.

Related Skills

  • gdex-ui-install-setup — Project setup and provider pattern
  • gdex-ui-portfolio-dashboard — Portfolio display components
  • gdex-ui-page-layouts — Full page compositions using these components
  • gdex-spot-trading — Spot trading SDK API details and managed-custody quirks
  • gdex-perp-trading — Perpetual futures SDK API details and close-position workaround

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