+type MarketBalanceQuery struct {
+ In struct {
+ User db.User
+ Market string
+ Currency string
+ }
+}
+
+func (q MarketBalanceQuery) ValidateParams() *Error {
+ if q.In.Market != "poloniex" {
+ return &Error{BadRequest, "invalid market name", fmt.Errorf("'%v' is not a valid market name", q.In.Market)}
+ }
+
+ // TODO: we should request market for available currencies.
+ if q.In.Currency != "BTC" && q.In.Currency != "USDT" && q.In.Currency != "ETH" {
+ return &Error{BadRequest, "invalid currency, accept [BTC, USDT, ETH]", fmt.Errorf("'%v' is not a valid currency", q.In.Currency)}
+ }
+
+ return nil
+}
+
+func (q MarketBalanceQuery) Run() (interface{}, *Error) {
+ config, err := db.GetUserMarketConfig(q.In.User.Id, q.In.Market)
+ if err != nil {
+ return nil, NewInternalError(err)
+ }
+
+ if config.Config["key"] == "" || config.Config["secret"] == "" {
+ return nil, &Error{BadRequest, "your credentials for this market are not setup", fmt.Errorf("'%v' credentials are not setup", q.In.Market)}
+ }
+
+ result := struct {
+ Value decimal.Decimal `json:"value"`
+ ValueCurrency string `json:"valueCurrency"`
+ Balance map[string]markets.Balance `json:"balance"`
+ }{}
+
+ resultErr := CallExternalService(fmt.Sprintf("'%s' GetBalanceValue", q.In.Market), EXTERNAL_SERVICE_TIMEOUT_SECONDS*time.Second, func() *Error {
+ balance, err := Poloniex.GetBalance(config.Config["key"], config.Config["secret"])
+
+ if utils.ErrIs(err, markets.InvalidCredentials) {
+ return &Error{InvalidMarketCredentials, "wrong market credentials", fmt.Errorf("wrong '%v' market credentials", q.In.Market)}
+ }
+
+ if utils.ErrIs(err, markets.IPRestricted) {
+ return &Error{IPRestrictedApiKey, "ip restricted api key", fmt.Errorf("'%v' ip restricted", q.In.Market)}
+ }
+
+ if err != nil {
+ return NewInternalError(err)
+ }
+
+ for currency, value := range balance.Balances {
+ if value.BTCValue.Abs().LessThan(decimal.NewFromFloat(0.0001)) {
+ delete(balance.Balances, currency)
+ }
+ }
+
+ result.Balance = balance.Balances
+ result.ValueCurrency = "BTC"
+ result.Value = balance.BTCValue.Round(8)
+
+ return nil
+ })
+
+ if resultErr != nil {
+ return nil, resultErr
+ }
+
+ return &result, nil
+}
+