implemented api handlers

pkg/haproxy/config.go

@@ -1,29 +1,43 @@
 package haproxy
 
+import "encoding/json"
+
 type Config struct {
-	LoadBalancers []LoadBalancer
+	LoadBalancers []*LoadBalancer
+}
+
+func NewConfig(m map[string][]byte) (c Config, err error) {
+	for _, v := range m {
+		lb := new(LoadBalancer)
+		err = json.Unmarshal(v, lb)
+		if err != nil {
+			return
+		}
+		c.LoadBalancers = append(c.LoadBalancers, lb)
+	}
+	return
 }
 
 type LoadBalancer struct {
-	Name    string
-	IP      string
-	Options Options
-	Ports   []Port
+	Name    string  `json:"name"`
+	IP      string  `json:"ip"`
+	Options Options `json:"options"`
+	Ports   []Port  `json:"ports"`
 }
 
 type Options struct {
-	Frontend      []string
-	Backend       []string
-	DefaultServer string
+	Frontend      []string `json:"frontend"`
+	Backend       []string `json:"backend"`
+	DefaultServer string   `json:"defaultServer"`
 }
 
 type Port struct {
-	Port    int
-	Servers []Server
+	Port    int      `json:"port"`
+	Servers []Server `json:"servers"`
 }
 
 type Server struct {
-	Name string
-	IP   string
-	Port int
+	Name string `json:"name"`
+	IP   string `json:"ip"`
+	Port int    `json:"port"`
 }