add partial share ownership support (float)... and penny rounding errors.

providers/staticjsonYahooFinance/providerImpl.go

@@ -9,8 +9,8 @@ import (
 )
 
 type security struct {
-	Symbol   string `json:"symbol"`
-	Quantity int    `json:"quantity"`
+	Symbol   string  `json:"symbol"`
+	Quantity float64 `json:"quantity"`
 }
 
 type account struct {
@@ -63,7 +63,7 @@ func (p *Provider) GetBalances() ([]int, []string, error) {
 			if err != nil {
 				return balances, ynabAccountIDs, fmt.Errorf("failed to get quote for security with symbol '%s': %v", p.data.Accounts[i].Securities[j].Symbol, err)
 			}
-			balance += price * p.data.Accounts[i].Securities[j].Quantity
+			balance += int(float64(price) * p.data.Accounts[i].Securities[j].Quantity)
 		}
 		balances = append(balances, balance)
 		ynabAccountIDs = append(ynabAccountIDs, p.data.Accounts[i].YnabAccountID)