feat(trader): add Indodax exchange integration (#1400)

* feat(trader): add Indodax exchange integration - Add IndodaxTrader implementing types.Trader interface for spot trading - Support HMAC-SHA512 authentication with Key/Sign headers - Map spot buy/sell to OpenLong/CloseLong, stub futures-only methods - Wire up auto_trader.go, trader_manager.go, store/exchange.go - Add Indodax to frontend ExchangeConfigModal and ExchangeIcons - Add integration tests with env-var based credentials - Add Indodax logo assets (PNG + SVG) * fix: type validation at server.go for indodax exchange
2026-06-04 01:48:22 +08:00 · 2026-03-03 17:41:50 +07:00
parent 3358c5a53e
commit 27a7491cd1
10 changed files with 1331 additions and 60 deletions
@@ -2008,7 +2008,7 @@ func (s *Server) handleCreateExchange(c *gin.Context) {
 	// Validate exchange type
 	validTypes := map[string]bool{
 		"binance": true, "bybit": true, "okx": true, "bitget": true,
-		"hyperliquid": true, "aster": true, "lighter": true, "gate": true, "kucoin": true,
+		"hyperliquid": true, "aster": true, "lighter": true, "gate": true, "kucoin": true, "indodax": true,
 	}
 	if !validTypes[req.ExchangeType] {
 		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("Invalid exchange type: %s", req.ExchangeType)})
@@ -407,7 +407,6 @@ func (tm *TraderManager) GetTopTradersData() (map[string]interface{}, error) {
 	return result, nil
 }

-
 // RemoveTrader removes a trader from memory (does not affect database)
 // Used to force reload when updating trader configuration
 // If the trader is running, it will be stopped first
@@ -664,11 +663,11 @@ func (tm *TraderManager) addTraderFromStore(traderCfg *store.Trader, aiModelCfg
 		QwenKey:               "",
 		CustomAPIURL:          aiModelCfg.CustomAPIURL,
 		CustomModelName:       aiModelCfg.CustomModelName,
-		ScanInterval:         time.Duration(traderCfg.ScanIntervalMinutes) * time.Minute,
-		InitialBalance:       traderCfg.InitialBalance,
-		IsCrossMargin:        traderCfg.IsCrossMargin,
-		ShowInCompetition:    traderCfg.ShowInCompetition,
-		StrategyConfig:       strategyConfig,
+		ScanInterval:          time.Duration(traderCfg.ScanIntervalMinutes) * time.Minute,
+		InitialBalance:        traderCfg.InitialBalance,
+		IsCrossMargin:         traderCfg.IsCrossMargin,
+		ShowInCompetition:     traderCfg.ShowInCompetition,
+		StrategyConfig:        strategyConfig,
 	}

 	logger.Infof("📊 Loading trader %s: ScanIntervalMinutes=%d (from DB), ScanInterval=%v",
@@ -711,6 +710,9 @@ func (tm *TraderManager) addTraderFromStore(traderCfg *store.Trader, aiModelCfg
 		traderConfig.LighterAPIKeyPrivateKey = string(exchangeCfg.LighterAPIKeyPrivateKey)
 		traderConfig.LighterAPIKeyIndex = exchangeCfg.LighterAPIKeyIndex
 		traderConfig.LighterTestnet = exchangeCfg.Testnet
+	case "indodax":
+		traderConfig.IndodaxAPIKey = string(exchangeCfg.APIKey)
+		traderConfig.IndodaxSecretKey = string(exchangeCfg.SecretKey)
 	}

 	// Set API keys based on AI model (convert EncryptedString to string)
@@ -17,28 +17,28 @@ type ExchangeStore struct {

 // Exchange exchange configuration
 type Exchange struct {
-	ID                      string          `gorm:"primaryKey" json:"id"`
-	ExchangeType            string          `gorm:"column:exchange_type;not null;default:''" json:"exchange_type"`
-	AccountName             string          `gorm:"column:account_name;not null;default:''" json:"account_name"`
-	UserID                  string          `gorm:"column:user_id;not null;default:default;index" json:"user_id"`
-	Name                    string          `gorm:"not null" json:"name"`
-	Type                    string          `gorm:"not null" json:"type"` // "cex" or "dex"
-	Enabled                 bool            `gorm:"default:false" json:"enabled"`
+	ID                      string                 `gorm:"primaryKey" json:"id"`
+	ExchangeType            string                 `gorm:"column:exchange_type;not null;default:''" json:"exchange_type"`
+	AccountName             string                 `gorm:"column:account_name;not null;default:''" json:"account_name"`
+	UserID                  string                 `gorm:"column:user_id;not null;default:default;index" json:"user_id"`
+	Name                    string                 `gorm:"not null" json:"name"`
+	Type                    string                 `gorm:"not null" json:"type"` // "cex" or "dex"
+	Enabled                 bool                   `gorm:"default:false" json:"enabled"`
 	APIKey                  crypto.EncryptedString `gorm:"column:api_key;default:''" json:"apiKey"`
 	SecretKey               crypto.EncryptedString `gorm:"column:secret_key;default:''" json:"secretKey"`
 	Passphrase              crypto.EncryptedString `gorm:"column:passphrase;default:''" json:"passphrase"`
-	Testnet                 bool            `gorm:"default:false" json:"testnet"`
-	HyperliquidWalletAddr   string          `gorm:"column:hyperliquid_wallet_addr;default:''" json:"hyperliquidWalletAddr"`
-	HyperliquidUnifiedAcct  bool            `gorm:"column:hyperliquid_unified_account;default:true" json:"hyperliquidUnifiedAccount"` // Unified Account mode (Spot as collateral)
-	AsterUser               string          `gorm:"column:aster_user;default:''" json:"asterUser"`
-	AsterSigner             string          `gorm:"column:aster_signer;default:''" json:"asterSigner"`
+	Testnet                 bool                   `gorm:"default:false" json:"testnet"`
+	HyperliquidWalletAddr   string                 `gorm:"column:hyperliquid_wallet_addr;default:''" json:"hyperliquidWalletAddr"`
+	HyperliquidUnifiedAcct  bool                   `gorm:"column:hyperliquid_unified_account;default:true" json:"hyperliquidUnifiedAccount"` // Unified Account mode (Spot as collateral)
+	AsterUser               string                 `gorm:"column:aster_user;default:''" json:"asterUser"`
+	AsterSigner             string                 `gorm:"column:aster_signer;default:''" json:"asterSigner"`
 	AsterPrivateKey         crypto.EncryptedString `gorm:"column:aster_private_key;default:''" json:"asterPrivateKey"`
-	LighterWalletAddr       string          `gorm:"column:lighter_wallet_addr;default:''" json:"lighterWalletAddr"`
+	LighterWalletAddr       string                 `gorm:"column:lighter_wallet_addr;default:''" json:"lighterWalletAddr"`
 	LighterPrivateKey       crypto.EncryptedString `gorm:"column:lighter_private_key;default:''" json:"lighterPrivateKey"`
 	LighterAPIKeyPrivateKey crypto.EncryptedString `gorm:"column:lighter_api_key_private_key;default:''" json:"lighterAPIKeyPrivateKey"`
-	LighterAPIKeyIndex      int             `gorm:"column:lighter_api_key_index;default:0" json:"lighterAPIKeyIndex"`
-	CreatedAt               time.Time       `json:"created_at"`
-	UpdatedAt               time.Time       `json:"updated_at"`
+	LighterAPIKeyIndex      int                    `gorm:"column:lighter_api_key_index;default:0" json:"lighterAPIKeyIndex"`
+	CreatedAt               time.Time              `json:"created_at"`
+	UpdatedAt               time.Time              `json:"updated_at"`
 }

 func (Exchange) TableName() string { return "exchanges" }
@@ -174,6 +174,8 @@ func getExchangeNameAndType(exchangeType string) (name string, typ string) {
 		return "Aster DEX", "dex"
 	case "lighter":
 		return "LIGHTER DEX", "dex"
+	case "indodax":
+		return "Indodax", "cex"
 	default:
 		return exchangeType + " Exchange", "cex"
 	}
@@ -233,15 +235,15 @@ func (s *ExchangeStore) Update(userID, id string, enabled bool, apiKey, secretKe
 	logger.Debugf("🔧 ExchangeStore.Update: userID=%s, id=%s, enabled=%v", userID, id, enabled)

 	updates := map[string]interface{}{
-		"enabled":                       enabled,
-		"testnet":                       testnet,
-		"hyperliquid_wallet_addr":       hyperliquidWalletAddr,
-		"hyperliquid_unified_account":   hyperliquidUnifiedAcct,
-		"aster_user":                    asterUser,
-		"aster_signer":            asterSigner,
-		"lighter_wallet_addr":     lighterWalletAddr,
-		"lighter_api_key_index":   lighterApiKeyIndex,
-		"updated_at":              time.Now().UTC(),
+		"enabled":                     enabled,
+		"testnet":                     testnet,
+		"hyperliquid_wallet_addr":     hyperliquidWalletAddr,
+		"hyperliquid_unified_account": hyperliquidUnifiedAcct,
+		"aster_user":                  asterUser,
+		"aster_signer":                asterSigner,
+		"lighter_wallet_addr":         lighterWalletAddr,
+		"lighter_api_key_index":       lighterApiKeyIndex,
+		"updated_at":                  time.Now().UTC(),
 	}

 	// Only update encrypted fields if not empty
@@ -16,6 +16,7 @@ import (
 	"nofx/trader/bybit"
 	"nofx/trader/gate"
 	"nofx/trader/hyperliquid"
+	"nofx/trader/indodax"
 	"nofx/trader/kucoin"
 	"nofx/trader/lighter"
 	"nofx/trader/okx"
@@ -44,13 +45,13 @@ type AutoTraderConfig struct {
 	BybitSecretKey string

 	// OKX API configuration
-	OKXAPIKey    string
-	OKXSecretKey string
+	OKXAPIKey     string
+	OKXSecretKey  string
 	OKXPassphrase string

 	// Bitget API configuration
-	BitgetAPIKey    string
-	BitgetSecretKey string
+	BitgetAPIKey     string
+	BitgetSecretKey  string
 	BitgetPassphrase string

 	// Gate API configuration
@@ -58,10 +59,14 @@ type AutoTraderConfig struct {
 	GateSecretKey string

 	// KuCoin API configuration
-	KuCoinAPIKey    string
-	KuCoinSecretKey string
+	KuCoinAPIKey     string
+	KuCoinSecretKey  string
 	KuCoinPassphrase string

+	// Indodax API configuration
+	IndodaxAPIKey    string
+	IndodaxSecretKey string
+
 	// Hyperliquid configuration
 	HyperliquidPrivateKey  string
 	HyperliquidWalletAddr  string
@@ -122,9 +127,9 @@ type AutoTrader struct {
 	config                AutoTraderConfig
 	trader                Trader // Use Trader interface (supports multiple platforms)
 	mcpClient             mcp.AIClient
-	store                 *store.Store             // Data storage (decision records, etc.)
+	store                 *store.Store           // Data storage (decision records, etc.)
 	strategyEngine        *kernel.StrategyEngine // Strategy engine (uses strategy configuration)
-	cycleNumber           int                      // Current cycle number
+	cycleNumber           int                    // Current cycle number
 	initialBalance        float64
 	dailyPnL              float64
 	customPrompt          string // Custom trading strategy prompt
@@ -289,6 +294,9 @@ func NewAutoTrader(config AutoTraderConfig, st *store.Store, userID string) (*Au
 			return nil, fmt.Errorf("failed to initialize LIGHTER trader: %w", err)
 		}
 		logger.Infof("✓ LIGHTER trader initialized successfully")
+	case "indodax":
+		logger.Infof("🏦 [%s] Using Indodax Spot trading", config.Name)
+		trader = indodax.NewIndodaxTrader(config.IndodaxAPIKey, config.IndodaxSecretKey)
 	default:
 		return nil, fmt.Errorf("unsupported trading platform: %s", config.Exchange)
 	}
@@ -2181,22 +2189,22 @@ func (at *AutoTrader) recordOrderFill(orderRecordID int64, exchangeOrderID, symb
 	normalizedSymbol := market.Normalize(symbol)

 	fill := &store.TraderFill{
-		TraderID:         at.id,
-		ExchangeID:       at.exchangeID,
-		ExchangeType:     at.exchange,
-		OrderID:          orderRecordID,
-		ExchangeOrderID:  exchangeOrderID,
-		ExchangeTradeID:  tradeID,
-		Symbol:           normalizedSymbol,
-		Side:             side,
-		Price:            price,
-		Quantity:         quantity,
-		QuoteQuantity:    price * quantity,
-		Commission:       fee,
-		CommissionAsset:  "USDT",
-		RealizedPnL:      0, // Will be calculated for close orders
-		IsMaker:          false, // Market orders are usually taker
-		CreatedAt:        time.Now().UTC().UnixMilli(),
+		TraderID:        at.id,
+		ExchangeID:      at.exchangeID,
+		ExchangeType:    at.exchange,
+		OrderID:         orderRecordID,
+		ExchangeOrderID: exchangeOrderID,
+		ExchangeTradeID: tradeID,
+		Symbol:          normalizedSymbol,
+		Side:            side,
+		Price:           price,
+		Quantity:        quantity,
+		QuoteQuantity:   price * quantity,
+		Commission:      fee,
+		CommissionAsset: "USDT",
+		RealizedPnL:     0,     // Will be calculated for close orders
+		IsMaker:         false, // Market orders are usually taker
+		CreatedAt:       time.Now().UTC().UnixMilli(),
 	}

 	// Calculate realized PnL for close orders
@@ -2324,4 +2332,3 @@ func getSideFromAction(action string) string {
 func (at *AutoTrader) GetOpenOrders(symbol string) ([]OpenOrder, error) {
 	return at.trader.GetOpenOrders(symbol)
 }
-
@@ -0,0 +1,878 @@
+package indodax
+
+import (
+	"crypto/hmac"
+	"crypto/sha512"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math"
+	"net/http"
+	"net/url"
+	"nofx/logger"
+	"nofx/trader/types"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+// Indodax API endpoints
+const (
+	indodaxBaseURL    = "https://indodax.com"
+	indodaxPublicAPI  = "/api"
+	indodaxPrivateAPI = "/tapi"
+)
+
+// IndodaxTrader implements types.Trader interface for Indodax Spot Exchange
+// Indodax is Indonesia's largest crypto exchange, supporting IDR (Indonesian Rupiah) pairs.
+// Since Indodax is spot-only, futures-specific methods (OpenShort, CloseShort, leverage, etc.)
+// are gracefully stubbed.
+type IndodaxTrader struct {
+	apiKey    string
+	secretKey string
+
+	httpClient *http.Client
+	nonce      int64
+	nonceMutex sync.Mutex
+
+	// Cache for pair info
+	pairCache      map[string]*IndodaxPair
+	pairCacheMutex sync.RWMutex
+	pairCacheTime  time.Time
+
+	// Cache for balance
+	cachedBalance     map[string]interface{}
+	cachedPositions   []map[string]interface{}
+	balanceCacheTime  time.Time
+	positionCacheTime time.Time
+	cacheDuration     time.Duration
+	cacheMutex        sync.RWMutex
+}
+
+// IndodaxPair represents a trading pair on Indodax
+type IndodaxPair struct {
+	ID                     string  `json:"id"`
+	Symbol                 string  `json:"symbol"`
+	BaseCurrency           string  `json:"base_currency"`
+	TradedCurrency         string  `json:"traded_currency"`
+	TradedCurrencyUnit     string  `json:"traded_currency_unit"`
+	Description            string  `json:"description"`
+	TickerID               string  `json:"ticker_id"`
+	VolumePrecision        int     `json:"volume_precision"`
+	PricePrecision         float64 `json:"price_precision"`
+	PriceRound             int     `json:"price_round"`
+	Pricescale             float64 `json:"pricescale"`
+	TradeMinBaseCurrency   float64 `json:"trade_min_base_currency"`
+	TradeMinTradedCurrency float64 `json:"trade_min_traded_currency"`
+}
+
+// IndodaxResponse represents the standard Indodax private API response
+type IndodaxResponse struct {
+	Success   int             `json:"success"`
+	Return    json.RawMessage `json:"return,omitempty"`
+	Error     string          `json:"error,omitempty"`
+	ErrorCode string          `json:"error_code,omitempty"`
+}
+
+// IndodaxTicker represents ticker data
+type IndodaxTicker struct {
+	High       string `json:"high"`
+	Low        string `json:"low"`
+	Last       string `json:"last"`
+	Buy        string `json:"buy"`
+	Sell       string `json:"sell"`
+	ServerTime int64  `json:"server_time"`
+}
+
+// IndodaxTickerResponse wraps ticker response
+type IndodaxTickerResponse struct {
+	Ticker IndodaxTicker `json:"ticker"`
+}
+
+// NewIndodaxTrader creates a new Indodax trader instance
+func NewIndodaxTrader(apiKey, secretKey string) *IndodaxTrader {
+	return &IndodaxTrader{
+		apiKey:        apiKey,
+		secretKey:     secretKey,
+		httpClient:    &http.Client{Timeout: 30 * time.Second},
+		nonce:         time.Now().UnixMilli(),
+		pairCache:     make(map[string]*IndodaxPair),
+		cacheDuration: 15 * time.Second,
+	}
+}
+
+// getNonce returns a unique incrementing nonce for each request
+func (t *IndodaxTrader) getNonce() int64 {
+	t.nonceMutex.Lock()
+	defer t.nonceMutex.Unlock()
+	t.nonce++
+	return t.nonce
+}
+
+// sign generates HMAC-SHA512 signature for request body
+func (t *IndodaxTrader) sign(body string) string {
+	mac := hmac.New(sha512.New, []byte(t.secretKey))
+	mac.Write([]byte(body))
+	return hex.EncodeToString(mac.Sum(nil))
+}
+
+// doPublicRequest makes a public API GET request
+func (t *IndodaxTrader) doPublicRequest(path string) ([]byte, error) {
+	reqURL := indodaxBaseURL + indodaxPublicAPI + path
+
+	req, err := http.NewRequest("GET", reqURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	resp, err := t.httpClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response: %w", err)
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("HTTP %d: %s", resp.StatusCode, string(data))
+	}
+
+	return data, nil
+}
+
+// doPrivateRequest makes a signed private API POST request
+func (t *IndodaxTrader) doPrivateRequest(params url.Values) ([]byte, error) {
+	reqURL := indodaxBaseURL + indodaxPrivateAPI
+
+	// Add nonce
+	params.Set("nonce", strconv.FormatInt(t.getNonce(), 10))
+
+	body := params.Encode()
+	signature := t.sign(body)
+
+	req, err := http.NewRequest("POST", reqURL, strings.NewReader(body))
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	req.Header.Set("Key", t.apiKey)
+	req.Header.Set("Sign", signature)
+
+	resp, err := t.httpClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response: %w", err)
+	}
+
+	if resp.StatusCode == http.StatusTooManyRequests {
+		return nil, fmt.Errorf("rate limit exceeded, please try again later")
+	}
+
+	// Parse response to check success
+	var apiResp IndodaxResponse
+	if err := json.Unmarshal(data, &apiResp); err != nil {
+		return nil, fmt.Errorf("failed to parse response: %w (body: %s)", err, string(data))
+	}
+
+	if apiResp.Success != 1 {
+		return nil, fmt.Errorf("API error: %s (code: %s)", apiResp.Error, apiResp.ErrorCode)
+	}
+
+	return apiResp.Return, nil
+}
+
+// convertSymbol converts standard symbol to Indodax format
+// e.g. BTCIDR -> btc_idr, ETHIDR -> eth_idr
+func (t *IndodaxTrader) convertSymbol(symbol string) string {
+	s := strings.ToLower(symbol)
+
+	// Already in Indodax format (contains underscore)
+	if strings.Contains(s, "_") {
+		return s
+	}
+
+	// Try to split by known base currencies
+	for _, base := range []string{"idr", "btc", "usdt"} {
+		if strings.HasSuffix(s, base) {
+			traded := strings.TrimSuffix(s, base)
+			if traded != "" {
+				return traded + "_" + base
+			}
+		}
+	}
+
+	return s
+}
+
+// convertSymbolBack converts Indodax format back to standard
+// e.g. btc_idr -> BTCIDR
+func (t *IndodaxTrader) convertSymbolBack(indodaxSymbol string) string {
+	return strings.ToUpper(strings.ReplaceAll(indodaxSymbol, "_", ""))
+}
+
+// getCoinFromSymbol extracts the traded currency from a symbol
+// e.g. btc_idr -> btc, eth_idr -> eth
+func (t *IndodaxTrader) getCoinFromSymbol(symbol string) string {
+	pair := t.convertSymbol(symbol)
+	parts := strings.Split(pair, "_")
+	if len(parts) >= 1 {
+		return parts[0]
+	}
+	return strings.ToLower(symbol)
+}
+
+// loadPairs loads trading pair information from the public API
+func (t *IndodaxTrader) loadPairs() error {
+	t.pairCacheMutex.RLock()
+	if len(t.pairCache) > 0 && time.Since(t.pairCacheTime) < 5*time.Minute {
+		t.pairCacheMutex.RUnlock()
+		return nil
+	}
+	t.pairCacheMutex.RUnlock()
+
+	data, err := t.doPublicRequest("/pairs")
+	if err != nil {
+		return fmt.Errorf("failed to load pairs: %w", err)
+	}
+
+	var pairs []IndodaxPair
+	if err := json.Unmarshal(data, &pairs); err != nil {
+		return fmt.Errorf("failed to parse pairs: %w", err)
+	}
+
+	t.pairCacheMutex.Lock()
+	defer t.pairCacheMutex.Unlock()
+
+	t.pairCache = make(map[string]*IndodaxPair)
+	for i := range pairs {
+		p := pairs[i]
+		t.pairCache[p.TickerID] = &p
+		// Also index by ID (e.g. "btcidr")
+		t.pairCache[p.ID] = &p
+	}
+	t.pairCacheTime = time.Now()
+
+	logger.Infof("[Indodax] Loaded %d trading pairs", len(pairs))
+	return nil
+}
+
+// getPair gets pair info for a symbol
+func (t *IndodaxTrader) getPair(symbol string) (*IndodaxPair, error) {
+	if err := t.loadPairs(); err != nil {
+		return nil, err
+	}
+
+	pairID := t.convertSymbol(symbol)
+
+	t.pairCacheMutex.RLock()
+	defer t.pairCacheMutex.RUnlock()
+
+	if pair, ok := t.pairCache[pairID]; ok {
+		return pair, nil
+	}
+
+	// Try without underscore
+	noUnderscore := strings.ReplaceAll(pairID, "_", "")
+	if pair, ok := t.pairCache[noUnderscore]; ok {
+		return pair, nil
+	}
+
+	return nil, fmt.Errorf("pair not found: %s", symbol)
+}
+
+// clearCache clears cached data
+func (t *IndodaxTrader) clearCache() {
+	t.cacheMutex.Lock()
+	defer t.cacheMutex.Unlock()
+	t.cachedBalance = nil
+	t.cachedPositions = nil
+}
+
+// ============================================================
+// types.Trader interface implementation
+// ============================================================
+
+// GetBalance gets account balance from Indodax
+func (t *IndodaxTrader) GetBalance() (map[string]interface{}, error) {
+	// Check cache
+	t.cacheMutex.RLock()
+	if t.cachedBalance != nil && time.Since(t.balanceCacheTime) < t.cacheDuration {
+		cached := t.cachedBalance
+		t.cacheMutex.RUnlock()
+		return cached, nil
+	}
+	t.cacheMutex.RUnlock()
+
+	params := url.Values{}
+	params.Set("method", "getInfo")
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get account info: %w", err)
+	}
+
+	var result struct {
+		ServerTime  int64                  `json:"server_time"`
+		Balance     map[string]interface{} `json:"balance"`
+		BalanceHold map[string]interface{} `json:"balance_hold"`
+		UserID      string                 `json:"user_id"`
+		Name        string                 `json:"name"`
+		Email       string                 `json:"email"`
+	}
+
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, fmt.Errorf("failed to parse balance: %w", err)
+	}
+
+	// Calculate total balance in IDR
+	idrBalance := parseFloat(result.Balance["idr"])
+	idrHold := parseFloat(result.BalanceHold["idr"])
+	totalIDR := idrBalance + idrHold
+
+	balance := map[string]interface{}{
+		"totalWalletBalance":    totalIDR,
+		"availableBalance":      idrBalance,
+		"totalUnrealizedProfit": 0.0,
+		"totalEquity":           totalIDR,
+		"balance":               totalIDR,
+		"idr_balance":           idrBalance,
+		"idr_hold":              idrHold,
+		"currency":              "IDR",
+		"user_id":               result.UserID,
+		"server_time":           result.ServerTime,
+	}
+
+	// Add individual crypto balances
+	for currency, amount := range result.Balance {
+		if currency != "idr" {
+			balance["balance_"+currency] = parseFloat(amount)
+		}
+	}
+	for currency, amount := range result.BalanceHold {
+		if currency != "idr" {
+			balance["hold_"+currency] = parseFloat(amount)
+		}
+	}
+
+	// Update cache
+	t.cacheMutex.Lock()
+	t.cachedBalance = balance
+	t.balanceCacheTime = time.Now()
+	t.cacheMutex.Unlock()
+
+	return balance, nil
+}
+
+// GetPositions returns currently held crypto balances as "positions"
+// Since Indodax is spot-only, each non-zero crypto balance is treated as a position
+func (t *IndodaxTrader) GetPositions() ([]map[string]interface{}, error) {
+	// Check cache
+	t.cacheMutex.RLock()
+	if t.cachedPositions != nil && time.Since(t.positionCacheTime) < t.cacheDuration {
+		cached := t.cachedPositions
+		t.cacheMutex.RUnlock()
+		return cached, nil
+	}
+	t.cacheMutex.RUnlock()
+
+	params := url.Values{}
+	params.Set("method", "getInfo")
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get positions: %w", err)
+	}
+
+	var result struct {
+		Balance     map[string]interface{} `json:"balance"`
+		BalanceHold map[string]interface{} `json:"balance_hold"`
+	}
+
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, fmt.Errorf("failed to parse positions: %w", err)
+	}
+
+	var positions []map[string]interface{}
+
+	for currency, amountRaw := range result.Balance {
+		if currency == "idr" {
+			continue
+		}
+
+		amount := parseFloat(amountRaw)
+		holdAmount := parseFloat(result.BalanceHold[currency])
+		totalAmount := amount + holdAmount
+
+		if totalAmount <= 0 {
+			continue
+		}
+
+		// Get market price for this coin
+		markPrice, _ := t.GetMarketPrice(strings.ToUpper(currency) + "IDR")
+
+		// Calculate position value in IDR
+		notionalValue := totalAmount * markPrice
+
+		position := map[string]interface{}{
+			"symbol":           strings.ToUpper(currency) + "IDR",
+			"side":             "LONG",
+			"positionAmt":      totalAmount,
+			"entryPrice":       markPrice, // Spot doesn't track entry price
+			"markPrice":        markPrice,
+			"unRealizedProfit": 0.0, // Spot doesn't track unrealized PnL
+			"leverage":         1.0,
+			"mgnMode":          "spot",
+			"notionalValue":    notionalValue,
+			"currency":         currency,
+			"available":        amount,
+			"hold":             holdAmount,
+		}
+
+		positions = append(positions, position)
+	}
+
+	// Update cache
+	t.cacheMutex.Lock()
+	t.cachedPositions = positions
+	t.positionCacheTime = time.Now()
+	t.cacheMutex.Unlock()
+
+	return positions, nil
+}
+
+// OpenLong opens a spot buy order
+func (t *IndodaxTrader) OpenLong(symbol string, quantity float64, leverage int) (map[string]interface{}, error) {
+	t.clearCache()
+
+	pair := t.convertSymbol(symbol)
+	coin := t.getCoinFromSymbol(symbol)
+
+	// Get market price to calculate IDR amount
+	price, err := t.GetMarketPrice(symbol)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get market price: %w", err)
+	}
+
+	params := url.Values{}
+	params.Set("method", "trade")
+	params.Set("pair", pair)
+	params.Set("type", "buy")
+	params.Set("price", strconv.FormatFloat(price, 'f', 0, 64))
+	params.Set(coin, strconv.FormatFloat(quantity, 'f', 8, 64))
+	params.Set("order_type", "limit")
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to place buy order: %w", err)
+	}
+
+	var result map[string]interface{}
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, fmt.Errorf("failed to parse trade response: %w", err)
+	}
+
+	logger.Infof("[Indodax] Buy order placed: %s qty=%.8f price=%.0f", symbol, quantity, price)
+
+	return map[string]interface{}{
+		"orderId": result["order_id"],
+		"symbol":  symbol,
+		"side":    "BUY",
+		"price":   price,
+		"qty":     quantity,
+		"status":  "NEW",
+	}, nil
+}
+
+// OpenShort is not supported on Indodax (spot-only exchange)
+func (t *IndodaxTrader) OpenShort(symbol string, quantity float64, leverage int) (map[string]interface{}, error) {
+	return nil, fmt.Errorf("short selling is not supported on Indodax (spot-only exchange)")
+}
+
+// CloseLong closes a spot position by selling
+func (t *IndodaxTrader) CloseLong(symbol string, quantity float64) (map[string]interface{}, error) {
+	t.clearCache()
+
+	pair := t.convertSymbol(symbol)
+	coin := t.getCoinFromSymbol(symbol)
+
+	// If quantity is 0, sell all available balance
+	if quantity <= 0 {
+		balance, err := t.GetBalance()
+		if err != nil {
+			return nil, fmt.Errorf("failed to get balance for close all: %w", err)
+		}
+		available := parseFloat(balance["balance_"+coin])
+		if available <= 0 {
+			return nil, fmt.Errorf("no %s balance to sell", coin)
+		}
+		quantity = available
+	}
+
+	// Get market price
+	price, err := t.GetMarketPrice(symbol)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get market price: %w", err)
+	}
+
+	params := url.Values{}
+	params.Set("method", "trade")
+	params.Set("pair", pair)
+	params.Set("type", "sell")
+	params.Set("price", strconv.FormatFloat(price, 'f', 0, 64))
+	params.Set(coin, strconv.FormatFloat(quantity, 'f', 8, 64))
+	params.Set("order_type", "limit")
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to place sell order: %w", err)
+	}
+
+	var result map[string]interface{}
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, fmt.Errorf("failed to parse trade response: %w", err)
+	}
+
+	logger.Infof("[Indodax] Sell order placed: %s qty=%.8f price=%.0f", symbol, quantity, price)
+
+	return map[string]interface{}{
+		"orderId": result["order_id"],
+		"symbol":  symbol,
+		"side":    "SELL",
+		"price":   price,
+		"qty":     quantity,
+		"status":  "NEW",
+	}, nil
+}
+
+// CloseShort is not supported on Indodax (spot-only exchange)
+func (t *IndodaxTrader) CloseShort(symbol string, quantity float64) (map[string]interface{}, error) {
+	return nil, fmt.Errorf("short selling is not supported on Indodax (spot-only exchange)")
+}
+
+// SetLeverage is a no-op for Indodax (spot-only, no leverage)
+func (t *IndodaxTrader) SetLeverage(symbol string, leverage int) error {
+	logger.Infof("[Indodax] SetLeverage ignored (spot-only exchange, no leverage support)")
+	return nil
+}
+
+// SetMarginMode is a no-op for Indodax (spot-only, no margin)
+func (t *IndodaxTrader) SetMarginMode(symbol string, isCrossMargin bool) error {
+	logger.Infof("[Indodax] SetMarginMode ignored (spot-only exchange, no margin support)")
+	return nil
+}
+
+// GetMarketPrice gets the current market price for a symbol
+func (t *IndodaxTrader) GetMarketPrice(symbol string) (float64, error) {
+	pairID := strings.ToLower(strings.ReplaceAll(t.convertSymbol(symbol), "_", ""))
+
+	data, err := t.doPublicRequest("/ticker/" + pairID)
+	if err != nil {
+		return 0, fmt.Errorf("failed to get ticker: %w", err)
+	}
+
+	var tickerResp IndodaxTickerResponse
+	if err := json.Unmarshal(data, &tickerResp); err != nil {
+		return 0, fmt.Errorf("failed to parse ticker: %w", err)
+	}
+
+	price, err := strconv.ParseFloat(tickerResp.Ticker.Last, 64)
+	if err != nil {
+		return 0, fmt.Errorf("failed to parse price '%s': %w", tickerResp.Ticker.Last, err)
+	}
+
+	return price, nil
+}
+
+// SetStopLoss is not supported on Indodax (spot-only exchange)
+func (t *IndodaxTrader) SetStopLoss(symbol string, positionSide string, quantity, stopPrice float64) error {
+	return fmt.Errorf("stop-loss orders are not supported on Indodax (spot-only exchange)")
+}
+
+// SetTakeProfit is not supported on Indodax (spot-only exchange)
+func (t *IndodaxTrader) SetTakeProfit(symbol string, positionSide string, quantity, takeProfitPrice float64) error {
+	return fmt.Errorf("take-profit orders are not supported on Indodax (spot-only exchange)")
+}
+
+// CancelStopLossOrders is a no-op for Indodax
+func (t *IndodaxTrader) CancelStopLossOrders(symbol string) error {
+	return nil
+}
+
+// CancelTakeProfitOrders is a no-op for Indodax
+func (t *IndodaxTrader) CancelTakeProfitOrders(symbol string) error {
+	return nil
+}
+
+// CancelAllOrders cancels all open orders for a given symbol
+func (t *IndodaxTrader) CancelAllOrders(symbol string) error {
+	t.clearCache()
+
+	pair := t.convertSymbol(symbol)
+
+	// First get open orders
+	params := url.Values{}
+	params.Set("method", "openOrders")
+	params.Set("pair", pair)
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return fmt.Errorf("failed to get open orders: %w", err)
+	}
+
+	var result struct {
+		Orders []struct {
+			OrderID   json.Number `json:"order_id"`
+			Type      string      `json:"type"`
+			OrderType string      `json:"order_type"`
+		} `json:"orders"`
+	}
+
+	if err := json.Unmarshal(data, &result); err != nil {
+		return fmt.Errorf("failed to parse open orders: %w", err)
+	}
+
+	// Cancel each order
+	for _, order := range result.Orders {
+		cancelParams := url.Values{}
+		cancelParams.Set("method", "cancelOrder")
+		cancelParams.Set("pair", pair)
+		cancelParams.Set("order_id", order.OrderID.String())
+		cancelParams.Set("type", order.Type)
+
+		if _, err := t.doPrivateRequest(cancelParams); err != nil {
+			logger.Warnf("[Indodax] Failed to cancel order %s: %v", order.OrderID, err)
+		} else {
+			logger.Infof("[Indodax] Cancelled order: %s", order.OrderID)
+		}
+	}
+
+	return nil
+}
+
+// CancelStopOrders is a no-op for Indodax (no stop orders)
+func (t *IndodaxTrader) CancelStopOrders(symbol string) error {
+	return nil
+}
+
+// FormatQuantity formats quantity to correct precision for Indodax
+func (t *IndodaxTrader) FormatQuantity(symbol string, quantity float64) (string, error) {
+	pair, err := t.getPair(symbol)
+	if err != nil {
+		// Default: 8 decimal places
+		return strconv.FormatFloat(quantity, 'f', 8, 64), nil
+	}
+
+	precision := pair.PriceRound
+	if precision <= 0 {
+		precision = 8
+	}
+
+	// Round down to avoid exceeding balance
+	factor := math.Pow(10, float64(precision))
+	rounded := math.Floor(quantity*factor) / factor
+
+	return strconv.FormatFloat(rounded, 'f', precision, 64), nil
+}
+
+// GetOrderStatus gets the status of a specific order
+func (t *IndodaxTrader) GetOrderStatus(symbol string, orderID string) (map[string]interface{}, error) {
+	pair := t.convertSymbol(symbol)
+
+	params := url.Values{}
+	params.Set("method", "getOrder")
+	params.Set("pair", pair)
+	params.Set("order_id", orderID)
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get order status: %w", err)
+	}
+
+	var result struct {
+		Order struct {
+			OrderID       string `json:"order_id"`
+			Price         string `json:"price"`
+			Type          string `json:"type"`
+			Status        string `json:"status"`
+			SubmitTime    string `json:"submit_time"`
+			FinishTime    string `json:"finish_time"`
+			ClientOrderID string `json:"client_order_id"`
+		} `json:"order"`
+	}
+
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, fmt.Errorf("failed to parse order: %w", err)
+	}
+
+	// Map Indodax status to standard status
+	status := "NEW"
+	switch result.Order.Status {
+	case "filled":
+		status = "FILLED"
+	case "cancelled":
+		status = "CANCELED"
+	case "open":
+		status = "NEW"
+	}
+
+	price, _ := strconv.ParseFloat(result.Order.Price, 64)
+
+	return map[string]interface{}{
+		"status":      status,
+		"avgPrice":    price,
+		"executedQty": 0.0, // Indodax doesn't return executed qty in getOrder
+		"commission":  0.0,
+		"orderId":     result.Order.OrderID,
+	}, nil
+}
+
+// GetClosedPnL gets closed position PnL records (trade history)
+func (t *IndodaxTrader) GetClosedPnL(startTime time.Time, limit int) ([]types.ClosedPnLRecord, error) {
+	// Indodax trade history is limited to 7 days range
+	params := url.Values{}
+	params.Set("method", "tradeHistory")
+	params.Set("pair", "btc_idr") // Default pair; Indodax requires a pair
+	if limit > 0 {
+		params.Set("count", strconv.Itoa(limit))
+	}
+	if !startTime.IsZero() {
+		params.Set("since", strconv.FormatInt(startTime.Unix(), 10))
+	}
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get trade history: %w", err)
+	}
+
+	var result struct {
+		Trades []struct {
+			TradeID       string `json:"trade_id"`
+			OrderID       string `json:"order_id"`
+			Type          string `json:"type"`
+			Price         string `json:"price"`
+			Fee           string `json:"fee"`
+			TradeTime     string `json:"trade_time"`
+			ClientOrderID string `json:"client_order_id"`
+		} `json:"trades"`
+	}
+
+	if err := json.Unmarshal(data, &result); err != nil {
+		// Trade history might return empty, that's fine
+		return nil, nil
+	}
+
+	var records []types.ClosedPnLRecord
+	for _, trade := range result.Trades {
+		price, _ := strconv.ParseFloat(trade.Price, 64)
+		fee, _ := strconv.ParseFloat(trade.Fee, 64)
+		tradeTime, _ := strconv.ParseInt(trade.TradeTime, 10, 64)
+
+		side := "long"
+		if trade.Type == "sell" {
+			side = "long" // Selling from a spot position is closing long
+		}
+
+		records = append(records, types.ClosedPnLRecord{
+			Symbol:    "BTCIDR",
+			Side:      side,
+			ExitPrice: price,
+			Fee:       fee,
+			ExitTime:  time.Unix(tradeTime, 0),
+			OrderID:   trade.OrderID,
+			CloseType: "manual",
+		})
+	}
+
+	return records, nil
+}
+
+// GetOpenOrders gets open/pending orders
+func (t *IndodaxTrader) GetOpenOrders(symbol string) ([]types.OpenOrder, error) {
+	pair := t.convertSymbol(symbol)
+
+	params := url.Values{}
+	params.Set("method", "openOrders")
+	if pair != "" {
+		params.Set("pair", pair)
+	}
+
+	data, err := t.doPrivateRequest(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get open orders: %w", err)
+	}
+
+	var result struct {
+		Orders []struct {
+			OrderID       json.Number `json:"order_id"`
+			ClientOrderID string      `json:"client_order_id"`
+			SubmitTime    string      `json:"submit_time"`
+			Price         string      `json:"price"`
+			Type          string      `json:"type"`
+			OrderType     string      `json:"order_type"`
+		} `json:"orders"`
+	}
+
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, fmt.Errorf("failed to parse open orders: %w", err)
+	}
+
+	var orders []types.OpenOrder
+	for _, order := range result.Orders {
+		price, _ := strconv.ParseFloat(order.Price, 64)
+
+		side := "BUY"
+		if order.Type == "sell" {
+			side = "SELL"
+		}
+
+		orders = append(orders, types.OpenOrder{
+			OrderID:      order.OrderID.String(),
+			Symbol:       t.convertSymbolBack(pair),
+			Side:         side,
+			PositionSide: "LONG",
+			Type:         "LIMIT",
+			Price:        price,
+			Status:       "NEW",
+		})
+	}
+
+	return orders, nil
+}
+
+// ============================================================
+// Helper functions
+// ============================================================
+
+// parseFloat safely parses a float from interface{}
+func parseFloat(v interface{}) float64 {
+	if v == nil {
+		return 0
+	}
+	switch val := v.(type) {
+	case float64:
+		return val
+	case string:
+		f, _ := strconv.ParseFloat(val, 64)
+		return f
+	case json.Number:
+		f, _ := val.Float64()
+		return f
+	case int:
+		return float64(val)
+	case int64:
+		return float64(val)
+	default:
+		return 0
+	}
+}
@@ -0,0 +1,374 @@
+package indodax
+
+import (
+	"os"
+	"testing"
+	"time"
+
+	"nofx/trader/types"
+)
+
+// Test credentials - set via environment variables
+func getIndodaxTestCredentials(t *testing.T) (string, string) {
+	apiKey := os.Getenv("INDODAX_TEST_API_KEY")
+	secretKey := os.Getenv("INDODAX_TEST_SECRET_KEY")
+
+	if apiKey == "" || secretKey == "" {
+		t.Skip("Indodax test credentials not set (INDODAX_TEST_API_KEY, INDODAX_TEST_SECRET_KEY)")
+	}
+
+	return apiKey, secretKey
+}
+
+func createIndodaxTestTrader(t *testing.T) *IndodaxTrader {
+	apiKey, secretKey := getIndodaxTestCredentials(t)
+	trader := NewIndodaxTrader(apiKey, secretKey)
+	return trader
+}
+
+// TestIndodaxTrader_InterfaceCompliance tests that IndodaxTrader implements types.Trader
+func TestIndodaxTrader_InterfaceCompliance(t *testing.T) {
+	var _ types.Trader = (*IndodaxTrader)(nil)
+}
+
+// TestNewIndodaxTrader tests creating Indodax trader instance
+func TestNewIndodaxTrader(t *testing.T) {
+	trader := NewIndodaxTrader("test_api_key", "test_secret_key")
+
+	if trader == nil {
+		t.Fatal("Expected non-nil trader")
+	}
+	if trader.apiKey != "test_api_key" {
+		t.Errorf("Expected apiKey 'test_api_key', got '%s'", trader.apiKey)
+	}
+	if trader.secretKey != "test_secret_key" {
+		t.Errorf("Expected secretKey 'test_secret_key', got '%s'", trader.secretKey)
+	}
+	if trader.httpClient == nil {
+		t.Error("Expected non-nil httpClient")
+	}
+	if trader.cacheDuration != 15*time.Second {
+		t.Errorf("Expected cacheDuration 15s, got %v", trader.cacheDuration)
+	}
+}
+
+// TestIndodaxTrader_SymbolConversion tests symbol format conversion
+func TestIndodaxTrader_SymbolConversion(t *testing.T) {
+	trader := NewIndodaxTrader("test", "test")
+
+	tests := []struct {
+		name     string
+		input    string
+		expected string
+	}{
+		{"BTCIDR to btc_idr", "BTCIDR", "btc_idr"},
+		{"ETHIDR to eth_idr", "ETHIDR", "eth_idr"},
+		{"SOLIDR to sol_idr", "SOLIDR", "sol_idr"},
+		{"Already converted", "btc_idr", "btc_idr"},
+		{"BTC pair", "ETHBTC", "eth_btc"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := trader.convertSymbol(tt.input)
+			if result != tt.expected {
+				t.Errorf("convertSymbol(%s) = %s, want %s", tt.input, result, tt.expected)
+			}
+		})
+	}
+}
+
+// TestIndodaxTrader_SymbolConversionBack tests symbol reversion
+func TestIndodaxTrader_SymbolConversionBack(t *testing.T) {
+	trader := NewIndodaxTrader("test", "test")
+
+	tests := []struct {
+		name     string
+		input    string
+		expected string
+	}{
+		{"btc_idr to BTCIDR", "btc_idr", "BTCIDR"},
+		{"eth_idr to ETHIDR", "eth_idr", "ETHIDR"},
+		{"Already standard", "BTCIDR", "BTCIDR"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := trader.convertSymbolBack(tt.input)
+			if result != tt.expected {
+				t.Errorf("convertSymbolBack(%s) = %s, want %s", tt.input, result, tt.expected)
+			}
+		})
+	}
+}
+
+// TestIndodaxTrader_GetCoinFromSymbol tests coin extraction
+func TestIndodaxTrader_GetCoinFromSymbol(t *testing.T) {
+	trader := NewIndodaxTrader("test", "test")
+
+	tests := []struct {
+		input    string
+		expected string
+	}{
+		{"BTCIDR", "btc"},
+		{"ETHIDR", "eth"},
+		{"btc_idr", "btc"},
+		{"eth_idr", "eth"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.input, func(t *testing.T) {
+			result := trader.getCoinFromSymbol(tt.input)
+			if result != tt.expected {
+				t.Errorf("getCoinFromSymbol(%s) = %s, want %s", tt.input, result, tt.expected)
+			}
+		})
+	}
+}
+
+// TestIndodaxTrader_Sign tests HMAC-SHA512 signature generation
+func TestIndodaxTrader_Sign(t *testing.T) {
+	trader := NewIndodaxTrader("api_key", "secret_key")
+
+	body := "method=getInfo&nonce=1000"
+	signature := trader.sign(body)
+
+	if signature == "" {
+		t.Error("Expected non-empty signature")
+	}
+	if len(signature) != 128 { // SHA-512 hex = 128 chars
+		t.Errorf("Expected signature length 128, got %d", len(signature))
+	}
+
+	// Same input should produce same signature
+	signature2 := trader.sign(body)
+	if signature != signature2 {
+		t.Error("Signature should be deterministic")
+	}
+
+	// Different input should produce different signature
+	signature3 := trader.sign("method=getInfo&nonce=1001")
+	if signature == signature3 {
+		t.Error("Different input should produce different signature")
+	}
+}
+
+// TestIndodaxTrader_Nonce tests nonce incrementation
+func TestIndodaxTrader_Nonce(t *testing.T) {
+	trader := NewIndodaxTrader("test", "test")
+
+	nonce1 := trader.getNonce()
+	nonce2 := trader.getNonce()
+	nonce3 := trader.getNonce()
+
+	if nonce2 <= nonce1 {
+		t.Errorf("Nonce should be increasing: %d <= %d", nonce2, nonce1)
+	}
+	if nonce3 <= nonce2 {
+		t.Errorf("Nonce should be increasing: %d <= %d", nonce3, nonce2)
+	}
+}
+
+// TestIndodaxTrader_SpotOnlyRestrictions tests that futures-only methods return errors
+func TestIndodaxTrader_SpotOnlyRestrictions(t *testing.T) {
+	trader := NewIndodaxTrader("test", "test")
+
+	// OpenShort should fail
+	_, err := trader.OpenShort("BTCIDR", 0.001, 1)
+	if err == nil {
+		t.Error("OpenShort should return error on spot exchange")
+	}
+
+	// CloseShort should fail
+	_, err = trader.CloseShort("BTCIDR", 0.001)
+	if err == nil {
+		t.Error("CloseShort should return error on spot exchange")
+	}
+
+	// SetStopLoss should fail
+	err = trader.SetStopLoss("BTCIDR", "LONG", 0.001, 500000000)
+	if err == nil {
+		t.Error("SetStopLoss should return error on spot exchange")
+	}
+
+	// SetTakeProfit should fail
+	err = trader.SetTakeProfit("BTCIDR", "LONG", 0.001, 600000000)
+	if err == nil {
+		t.Error("SetTakeProfit should return error on spot exchange")
+	}
+
+	// SetLeverage should NOT fail (no-op)
+	err = trader.SetLeverage("BTCIDR", 10)
+	if err != nil {
+		t.Errorf("SetLeverage should not fail (no-op): %v", err)
+	}
+
+	// SetMarginMode should NOT fail (no-op)
+	err = trader.SetMarginMode("BTCIDR", true)
+	if err != nil {
+		t.Errorf("SetMarginMode should not fail (no-op): %v", err)
+	}
+}
+
+// TestIndodaxTrader_ParseFloat tests parseFloat helper
+func TestIndodaxTrader_ParseFloat(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    interface{}
+		expected float64
+	}{
+		{"float64", 123.45, 123.45},
+		{"string", "123.45", 123.45},
+		{"int", 123, 123.0},
+		{"int64", int64(123), 123.0},
+		{"nil", nil, 0.0},
+		{"zero string", "0", 0.0},
+		{"empty string", "", 0.0},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := parseFloat(tt.input)
+			if result != tt.expected {
+				t.Errorf("parseFloat(%v) = %f, want %f", tt.input, result, tt.expected)
+			}
+		})
+	}
+}
+
+// TestIndodaxTrader_ClearCache tests cache clearing
+func TestIndodaxTrader_ClearCache(t *testing.T) {
+	trader := NewIndodaxTrader("test", "test")
+
+	// Set some cached data
+	trader.cachedBalance = map[string]interface{}{"test": "data"}
+	trader.cachedPositions = []map[string]interface{}{{"test": "data"}}
+
+	// Clear cache
+	trader.clearCache()
+
+	if trader.cachedBalance != nil {
+		t.Error("Cache should be cleared")
+	}
+	if trader.cachedPositions != nil {
+		t.Error("Position cache should be cleared")
+	}
+}
+
+// ============================================================
+// Integration tests (require INDODAX_TEST_API_KEY env vars)
+// ============================================================
+
+// TestIndodaxConnection tests basic API connectivity
+func TestIndodaxConnection(t *testing.T) {
+	trader := createIndodaxTestTrader(t)
+
+	balance, err := trader.GetBalance()
+	if err != nil {
+		t.Fatalf("Failed to get balance: %v", err)
+	}
+
+	t.Logf("✅ Connection OK")
+	t.Logf("  totalWalletBalance: %v", balance["totalWalletBalance"])
+	t.Logf("  availableBalance: %v", balance["availableBalance"])
+	t.Logf("  totalEquity: %v", balance["totalEquity"])
+	t.Logf("  currency: %v", balance["currency"])
+	t.Logf("  user_id: %v", balance["user_id"])
+}
+
+// TestIndodaxGetPositions tests position retrieval
+func TestIndodaxGetPositions(t *testing.T) {
+	trader := createIndodaxTestTrader(t)
+
+	positions, err := trader.GetPositions()
+	if err != nil {
+		t.Fatalf("Failed to get positions: %v", err)
+	}
+
+	t.Logf("📊 Found %d positions (crypto balances):", len(positions))
+	for i, pos := range positions {
+		t.Logf("  [%d] %s: qty=%.8f markPrice=%.0f value=%.0f IDR",
+			i+1,
+			pos["symbol"],
+			pos["positionAmt"],
+			pos["markPrice"],
+			pos["notionalValue"],
+		)
+	}
+}
+
+// TestIndodaxGetMarketPrice tests market price retrieval
+func TestIndodaxGetMarketPrice(t *testing.T) {
+	trader := createIndodaxTestTrader(t)
+
+	pairs := []string{"BTCIDR", "ETHIDR"}
+
+	for _, pair := range pairs {
+		price, err := trader.GetMarketPrice(pair)
+		if err != nil {
+			t.Errorf("Failed to get price for %s: %v", pair, err)
+			continue
+		}
+		t.Logf("  %s: %.0f IDR", pair, price)
+	}
+}
+
+// TestIndodaxGetOpenOrders tests open orders retrieval
+func TestIndodaxGetOpenOrders(t *testing.T) {
+	trader := createIndodaxTestTrader(t)
+
+	orders, err := trader.GetOpenOrders("BTCIDR")
+	if err != nil {
+		t.Fatalf("Failed to get open orders: %v", err)
+	}
+
+	t.Logf("📋 Found %d open orders:", len(orders))
+	for i, order := range orders {
+		t.Logf("  [%d] %s %s: price=%.0f orderID=%s",
+			i+1, order.Symbol, order.Side, order.Price, order.OrderID)
+	}
+}
+
+// TestIndodaxGetClosedPnL tests trade history retrieval
+func TestIndodaxGetClosedPnL(t *testing.T) {
+	trader := createIndodaxTestTrader(t)
+
+	startTime := time.Now().Add(-7 * 24 * time.Hour)
+	records, err := trader.GetClosedPnL(startTime, 10)
+	if err != nil {
+		t.Fatalf("Failed to get closed PnL: %v", err)
+	}
+
+	t.Logf("📋 Found %d trade records:", len(records))
+	for i, record := range records {
+		t.Logf("  [%d] %s %s: price=%.0f fee=%.4f time=%s",
+			i+1, record.Symbol, record.Side, record.ExitPrice, record.Fee,
+			record.ExitTime.Format("2006-01-02 15:04:05"))
+	}
+}
+
+// TestIndodaxLoadPairs tests loading trading pairs
+func TestIndodaxLoadPairs(t *testing.T) {
+	trader := createIndodaxTestTrader(t)
+
+	err := trader.loadPairs()
+	if err != nil {
+		t.Fatalf("Failed to load pairs: %v", err)
+	}
+
+	trader.pairCacheMutex.RLock()
+	defer trader.pairCacheMutex.RUnlock()
+
+	t.Logf("📊 Loaded %d pairs", len(trader.pairCache))
+
+	// Check some known pairs
+	knownPairs := []string{"btc_idr", "eth_idr"}
+	for _, pairID := range knownPairs {
+		if pair, ok := trader.pairCache[pairID]; ok {
+			t.Logf("  %s: min_base=%v, min_traded=%v, precision=%d",
+				pair.Description, pair.TradeMinBaseCurrency, pair.TradeMinTradedCurrency, pair.PriceRound)
+		} else {
+			t.Errorf("Expected pair %s not found", pairID)
+		}
+	}
+}
@@ -0,0 +1,3 @@
+<svg width="300" height="300" viewBox="0 0 300 300" fill="none" xmlns="http://www.w3.org/2000/svg">
+    <path d="M23.8095 0.263396C16.8864 1.28889 10.9524 4.62174 6.15385 10.2253C3.99267 12.7524 1.50183 17.8066 0.659341 21.3592C0.03663 24.1061 0 29.3434 0 150.022C0 270.7 0.03663 275.938 0.659341 278.684C1.50183 282.274 3.99267 287.291 6.26374 289.928C10.1832 294.58 15.7143 298.022 21.3187 299.341C24.0659 299.963 29.304 300 150 300C270.696 300 275.934 299.963 278.681 299.341C284.286 298.022 289.817 294.58 293.736 289.928C296.007 287.291 298.498 282.274 299.341 278.684C299.963 275.938 300 270.7 300 150.022C300 29.3434 299.963 24.1061 299.341 21.3592C297.033 11.6171 289.341 3.66949 279.414 0.849391L276.557 0.0436474L151.282 0.00702266C81.3919 -0.0296021 25.0549 0.0802721 23.8095 0.263396ZM92.381 77.2119C96.1905 81.0941 104.469 89.5911 110.769 96.037L122.234 107.83L124.249 108.05C126.777 108.343 128.645 109.295 130.293 111.126C131.905 112.921 132.564 114.789 132.527 117.426C132.454 122.517 128.645 126.216 123.443 126.216C118.681 126.216 115.421 123.432 114.322 118.525C114.139 117.682 108.901 112.189 89.1209 91.9717L85.1648 87.9429L77.3993 95.7074L69.5971 103.508L89.7436 123.652L109.89 143.796H116.374C119.963 143.796 122.894 143.905 122.894 144.089C122.894 144.235 110.952 156.065 96.337 170.349C81.7216 184.669 69.7802 196.425 69.7802 196.535C69.7802 196.645 73.2967 200.234 77.5824 204.519L85.4212 212.32L110.842 186.537L136.264 160.716L150.403 160.68L164.506 160.643L168.901 165.148C174.249 170.642 177.729 174.231 198.169 195.546L214.249 212.32L222.051 204.519C226.337 200.234 229.817 196.608 229.744 196.425C229.707 196.279 224.286 190.492 217.692 183.57C206.557 171.887 205.568 170.971 203.956 170.495C201.685 169.872 198.718 166.979 198.059 164.818C196.337 158.922 199.927 153.318 205.824 152.695C211.136 152.146 215.348 155.772 215.897 161.339L216.117 163.829L231.319 180.054C239.67 188.954 246.557 196.462 246.63 196.682C246.667 196.901 239.414 204.483 230.476 213.529L214.286 229.974L189.194 203.824C175.421 189.43 162.821 176.318 161.209 174.634L158.278 171.63H150.733H143.187L133.333 181.592C127.912 187.086 114.908 200.198 104.432 210.746L85.3846 229.9L68.6813 213.199L52.0147 196.535L75.2747 173.279L98.5348 150.022L75.2747 126.765L52.0147 103.508L68.6813 86.8442C77.8388 77.688 85.348 70.18 85.3846 70.18C85.4212 70.18 88.5348 73.3663 92.381 77.2119ZM231.355 86.5512C240.403 95.5243 247.802 103.032 247.802 103.215C247.802 103.435 242.381 109.039 235.788 115.704C209.121 142.697 191.209 161.009 191.209 161.375C191.209 161.559 196.374 167.382 202.674 174.304L214.139 186.903L216.154 187.342C220.366 188.295 223.26 191.957 223.26 196.352C223.26 201.553 219.341 205.435 214.103 205.398C209.414 205.398 205.751 202.102 205.018 197.304C204.762 195.473 204.652 195.363 188.205 178.443C179.084 169.067 171.612 161.229 171.612 161.046C171.612 160.863 172.711 159.691 174.103 158.409C177.802 154.93 229.67 104.168 229.78 103.875C229.927 103.508 214.506 88.0528 214.139 88.1993C213.846 88.3092 194.029 107.684 169.78 131.563L161.172 140.06L136.813 139.877L112.454 139.694L99.0843 126.399C86.4103 113.8 85.641 113.104 84.1392 112.884C81.0256 112.408 78.0586 110.138 76.8865 107.317C76.1538 105.559 76.2637 101.787 77.0696 100.029C77.9487 98.1246 80.696 95.5975 82.4542 95.1214C87.9487 93.5831 93.2234 96.623 94.359 101.934L94.7985 104.058L107.106 116.217L119.414 128.377H137.912L156.41 128.413L185.531 99.2966C201.538 83.2916 214.689 70.18 214.762 70.18C214.835 70.18 222.271 77.5415 231.355 86.5512ZM216.813 95.4876C218.718 96.0004 221.978 99.26 222.491 101.164C224.103 106.915 220.733 112.481 215.128 113.251C213.626 113.47 212.344 114.642 191.392 135.042L169.231 156.578L151.832 156.614H134.432L114.615 176.465C96.63 194.484 94.7253 196.499 94.5055 197.817C93.2967 204.812 85.2747 207.742 79.4506 203.311C75.3846 200.198 75.4212 192.69 79.5238 189.284C80.9158 188.112 83.7729 187.013 85.3846 187.013C85.9341 187.013 92.3443 180.86 107.802 165.404L129.414 143.796H146.923H164.469L184.432 124.311C204.249 104.937 204.396 104.79 204.652 103.032C205.568 97.209 210.952 93.8761 216.813 95.4876Z" fill="#0184B5"/>
+</svg>
@@ -17,6 +17,7 @@ const ICON_PATHS: Record<string, string> = {
  hyperliquid: '/exchange-icons/hyperliquid.png',
  aster: '/exchange-icons/aster.svg',
  lighter: '/exchange-icons/lighter.png',
+  indodax: '/exchange-icons/indodax.png',
 }

 // 通用图标组件
@@ -101,7 +102,9 @@ export const getExchangeIcon = (
                  ? 'aster'
                  : lowerType.includes('lighter')
                    ? 'lighter'
-                    : lowerType
+                    : lowerType.includes('indodax')
+                      ? 'indodax'
+                      : lowerType

  const iconProps = {
    width: props.width || 24,
@@ -30,6 +30,7 @@ const SUPPORTED_EXCHANGE_TEMPLATES = [
  { exchange_type: 'hyperliquid', name: 'Hyperliquid', type: 'dex' as const },
  { exchange_type: 'aster', name: 'Aster DEX', type: 'dex' as const },
  { exchange_type: 'lighter', name: 'Lighter', type: 'dex' as const },
+  { exchange_type: 'indodax', name: 'Indodax', type: 'cex' as const },
 ]

 interface ExchangeConfigModalProps {
@@ -204,6 +205,7 @@ export function ExchangeConfigModal({
    hyperliquid: { url: 'https://app.hyperliquid.xyz/join/AITRADING', hasReferral: true },
    aster: { url: 'https://www.asterdex.com/en/referral/fdfc0e', hasReferral: true },
    lighter: { url: 'https://app.lighter.xyz/?referral=68151432', hasReferral: true },
+    indodax: { url: 'https://indodax.com/ref/Saep23/1', hasReferral: true },
  }

  // Initialize form when editing
@@ -312,7 +314,7 @@ export function ExchangeConfigModal({

    setIsSaving(true)
    try {
-      if (currentExchangeType === 'binance' || currentExchangeType === 'bybit') {
+      if (currentExchangeType === 'binance' || currentExchangeType === 'bybit' || currentExchangeType === 'indodax') {
        if (!apiKey.trim() || !secretKey.trim()) return
        await onSave(exchangeId, exchangeType, trimmedAccountName, apiKey.trim(), secretKey.trim(), '', testnet)
      } else if (currentExchangeType === 'okx' || currentExchangeType === 'bitget' || currentExchangeType === 'kucoin') {
@@ -503,7 +505,7 @@ export function ExchangeConfigModal({
              </div>

              {/* CEX Fields */}
-              {(currentExchangeType === 'binance' || currentExchangeType === 'bybit' || currentExchangeType === 'okx' || currentExchangeType === 'bitget' || currentExchangeType === 'gate' || currentExchangeType === 'kucoin') && (
+              {(currentExchangeType === 'binance' || currentExchangeType === 'bybit' || currentExchangeType === 'okx' || currentExchangeType === 'bitget' || currentExchangeType === 'gate' || currentExchangeType === 'kucoin' || currentExchangeType === 'indodax') && (
                <>
                  {currentExchangeType === 'binance' && (
                    <div