tonyhb · June 20, 2013 00:19 · Jun 20, 2013
diff --git a/main.go b/main.go
@@ -0,0 +1,55 @@
+package main
+
+import (
+	"fmt"
+	"net/url"
+	"reflect"
+	"strconv"
+)
+
+type Person struct {
+	Name string
+	Age  uint
+}
+
+func main() {
+	betty := Person{
+		Name: "Betty",
+		Age: 82,
+	}
+
+	urlValues := structToMap(&betty)
+	fmt.Printf("%#v", urlValues)
+	// Response...
+	// url.Values{"Name":[]string{"Betty"}, "Age":[]string{"82"}}
+	// It works! Play with it @ http://play.golang.org/p/R8jhzfI_ac
+}
+
+func structToMap(i interface{}) (values url.Values) {
+	values = url.Values{}
+	iVal := reflect.ValueOf(i).Elem()
+	typ := iVal.Type()
+	for i := 0; i < iVal.NumField(); i++ {
+		f := iVal.Field(i)
+		// You ca use tags here...
+		// tag := typ.Field(i).Tag.Get("tagname")
+		// Convert each type into a string for the url.Values string map
+		var v string
+		switch f.Interface().(type) {
+		case int, int8, int16, int32, int64:
+			v = strconv.FormatInt(f.Int(), 10)
+		case uint, uint8, uint16, uint32, uint64:
+			v = strconv.FormatUint(f.Uint(), 10)
+		case float32:
+			v = strconv.FormatFloat(f.Float(), 'f', 4, 32)
+		case float64:
+			v = strconv.FormatFloat(f.Float(), 'f', 4, 64)
+		case []byte:
+			v = string(f.Bytes())
+		case string:
+			v = f.String()
+		}
+		values.Set(typ.Field(i).Name, v)
+	}
+	return
+}