separate trading212 logic

internal/record.go

@@ -0,0 +1,18 @@
+package internal
+
+import (
+	"math/big"
+	"time"
+)
+
+type Record interface {
+	Symbol() string
+	Price() *big.Float
+	Quantity() *big.Float
+	Direction() Direction
+	Timestamp() time.Time
+}
+
+type RecordReader interface {
+	ReadRecord() (Record, error)
+}