1、反向下单 暂时提交

pkg/maphelper/maphelper.go

@@ -0,0 +1,46 @@
+package maphelper
+
+import (
+	"fmt"
+
+	"github.com/shopspring/decimal"
+)
+
+func GetString(m map[string]interface{}, key string) (string, error) {
+	val, ok := m[key]
+	if !ok {
+		return "", fmt.Errorf("参数错误，缺少字段 %s", key)
+	}
+	strVal, ok := val.(string)
+	if !ok {
+		return "", fmt.Errorf("字段 %s 类型错误", key)
+	}
+	return strVal, nil
+}
+
+func GetFloat64(m map[string]interface{}, key string) (float64, error) {
+	val, ok := m[key]
+	if !ok {
+		return 0, fmt.Errorf("参数错误，缺少字段 %s", key)
+	}
+	f, ok := val.(float64)
+	if !ok {
+		return 0, fmt.Errorf("字段 %s 类型错误", key)
+	}
+	return f, nil
+}
+
+func GetBool(m map[string]interface{}, key string) bool {
+	if val, ok := m[key].(bool); ok {
+		return val
+	}
+	return false
+}
+
+func GetDecimal(m map[string]interface{}, key string) decimal.Decimal {
+	if val, ok := m[key].(string); ok {
+		d, _ := decimal.NewFromString(val)
+		return d
+	}
+	return decimal.Zero
+}