ch3.5

internal/data/runtime.go

@@ -0,0 +1,15 @@
+package data
+
+import (
+	"fmt"
+	"strconv"
+)
+
+type Runtime int32
+
+func (r Runtime) MarshalJSON() ([]byte, error) {
+	jsonValue := fmt.Sprintf("%d mins", r)
+
+	quotedJSONValue := strconv.Quote(jsonValue)
+	return []byte(quotedJSONValue), nil
+}