Poloniex connection.

[perso/Immae/Projets/Cryptomonnaies/Cryptoportfolio/Front.git] / api / market_config.go

diff --git a/api/market_config.go b/api/market_config.go
index 3fd10ae000d19fba89f6e86b4911a1dde21bf294..d85af4de9e3c5f3a7e6f18c65d162ce130aa1d1e 100644 (file)
--- a/api/market_config.go
+++ b/api/market_config.go
@@ -2,7 +2,13 @@ package api
 
 import (
        "fmt"
+       "strings"
+       "time"
 
+       "immae.eu/Immae/Projets/Cryptomonnaies/Cryptoportfolio/Front/markets"
+
+       "github.com/jloup/utils"
+       "github.com/shopspring/decimal"
        "immae.eu/Immae/Projets/Cryptomonnaies/Cryptoportfolio/Front/db"
 )
 
@@ -42,6 +48,73 @@ func (q MarketConfigQuery) Run() (interface{}, *Error) {
        return config.Config, nil
 }
 
+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]decimal.Decimal `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 err != nil {
+                       return NewInternalError(err)
+               }
+
+               value, err := Poloniex.ComputeAccountBalanceValue(balance, q.In.Currency)
+               if err != nil {
+                       return NewInternalError(err)
+               }
+
+               result.Balance = balance
+               result.ValueCurrency = q.In.Currency
+               result.Value = value.Round(8)
+
+               return nil
+       })
+
+       if resultErr != nil {
+               return nil, resultErr
+       }
+
+       return &result, nil
+}
+
 type UpdateMarketConfigQuery struct {
        In struct {
                User   db.User
@@ -56,6 +129,9 @@ func (q UpdateMarketConfigQuery) ValidateParams() *Error {
                return &Error{BadRequest, "invalid market name", fmt.Errorf("'%v' is not a valid market name", q.In.Market)}
        }
 
+       q.In.Secret = strings.TrimSpace(q.In.Secret)
+       q.In.Key = strings.TrimSpace(q.In.Key)
+
        return nil
 }