Gdex UI Trading Components

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
• Authenticated via loginWithApiKey() — see gdex-authentication

Spot Trade Form

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

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

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

export function SpotTradeForm({ defaultChain = 'solana', onTradeComplete }: SpotTradeFormProps) {
  const { skill, isReady } = useGdex();
  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) return;
    setLoading(true);
    setError(null);
    try {
      const fn = mode === 'buy' ? skill.buyToken : skill.sellToken;
      const result = await fn.call(skill, { chain, tokenAddress, amount, slippage });
      onTradeComplete?.(result);
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Trade failed');
    } finally {
      setLoading(false);
    }
  };

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

      {/* Chain selector */}
      <select value={chain} => 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}
        => setTokenAddress(e.target.value)} required />
      <input type="number" placeholder="Amount" value={amount}
        => setAmount(e.target.value)} step="any" min="0" required />
      <input type="number" placeholder="Slippage %" value={slippage}
        => 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';

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

export function PerpOrderForm({ onOrderPlaced }: PerpOrderFormProps) {
  const { skill, isReady } = useGdex();
  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) return;
    setLoading(true);
    setError(null);
    try {
      const result = await skill.openPerpPosition({
        coin, side, sizeUsd, leverage,
        ...(takeProfitPrice && { takeProfitPrice }),
        ...(stopLossPrice && { stopLossPrice }),
      });
      onOrderPlaced?.(result);
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Order failed');
    } finally {
      setLoading(false);
    }
  };

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

      <select value={coin} => 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}
        => setSizeUsd(e.target.value)} min="10" required />
      <input type="range" min="1" max="50" value={leverage}
        => setLeverage(Number(e.target.value))} />
      <span>Leverage: {leverage}×</span>

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

Position Table

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

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

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

  const refresh = useCallback(async () => {
    if (!isReady) return;
    const data = await skill.hlGetPositions();
    setPositions(data?.positions ?? []);
  }, [skill, isReady]);

  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) => {
          const pnl = pos.unrealizedPnl ?? pos.pnl ?? 0;
          const isLong = Number(pos.szi ?? pos.size ?? 0) > 0;
          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>${Math.abs(Number(pos.szi ?? pos.size ?? 0)).toFixed(2)}</td>
              <td>${Number(pos.entryPx ?? 0).toFixed(2)}</td>
              <td>${Number(pos.markPx ?? 0).toFixed(2)}</td>
              <td className={pnl >= 0 ? 'text-green-500' : 'text-red-500'}>
                ${Number(pnl).toFixed(2)}
              </td>
              <td>{pos.leverage?.value ?? '—'}×</td>
              <td>
                <button => skill.closePerpPosition({ coin: pos.coin })}
                  className="text-red-500 hover:underline">
                  Close
                </button>
              </td>
            </tr>
          );
        })}
      </tbody>
    </table>
  );
}

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

Copy Trade Panel

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

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

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

  useEffect(() => {
    if (!isReady) return;
    // Load active copy trades
    skill.getCopyTrades?.().then(setActiveTrades).catch(() => {});
    // Load top traders for discovery
    skill.getTopTraders?.({ chain: 'solana', limit: 10 })
      .then(setTopTraders).catch(() => {});
  }, [skill, isReady]);

  return (
    <div>
      <div className="flex gap-2 mb-4">
        <button => setTab('active')}
          className={tab === 'active' ? 'font-bold border-b-2' : ''}>
          Active ({activeTrades.length})
        </button>
        <button => 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.copyBuyAmount} {trade.buyMode === 'fixed' ? 'fixed' : '%'}
              </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.wallet}</p>
                <p className="text-xs text-green-500">PnL: {trader.pnl}</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.getCopyTrades(), skill.getTopTraders()

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 { useGdex } from '@/providers/GdexProvider';
import { debounce } from '@/utils/debounce'; // simple debounce utility

interface TokenSearchProps {
  chain: string;
  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, address: q });
      setResults(data ? [data] : []);
    }, 300),
    [skill, isReady, chain]
  );

  return (
    <div className="relative">
      <input placeholder="Token address or symbol" value={query}
        => { 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} => { 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

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 should use reduce-only orders, not skill.hlCloseAll(). See gdex-perp-trading for the workaround.
3. Solana Meteora tokens fail — if building a token selector, filter out dexId === 'meteora' tokens to avoid failed trades.
4. Leverage slider is informational only — hlUpdateLeverage returns 404. Effective leverage is determined by position size vs account equity.
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