added error handling

models/bill/bill.go

@@ -2,6 +2,7 @@ package bill
 
 import (
 	"encoding/json"
+	"fmt"
 	"sync"
 	"time"
 
@@ -186,7 +187,11 @@ type PeerItemOrder struct {
 func (d *PeerItemOrder) GetPrice(request *tools.APIRequest) (float64, error) {
 	var priced *resources.PricedResource
 	b, _ := json.Marshal(d.Item)
-	json.Unmarshal(b, priced)
+	err := json.Unmarshal(b, priced)
+	if err != nil {
+		fmt.Println(err)
+		return 0, err
+	}
 	accessor := purchase_resource.NewAccessor(request)
 	search, code, _ := accessor.Search(&dbs.Filters{
 		And: map[string][]dbs.Filter{