feat(phase2): register event for rpc endpoint

graphql/event.go

@@ -1,8 +1,14 @@
 package graphql
 
-import "encoding/json"
+import (
+	"encoding/json"
+	"net/url"
+)
 
-const GenTXSubmittedEventType = "gentx-submitted"
+const (
+	GenTXSubmittedEventType      = "gentx-submitted"
+	RegisterRPCEndpointEventType = "register-rpc-endpoint"
+)
 
 type GenTXSubmittedEvent struct {
 	Twitter *string                `json:"twitter,omitempty"`
@@ -30,3 +36,28 @@ func Unmarshall(data map[string]interface{}) (*GenTXSubmittedEvent, error) {
 	err = json.Unmarshal(d, &event)
 	return event, err
 }
+
+type RegisterRPCEndpointEvent struct {
+	Validator string   `json:"validator"`
+	url       *url.URL `json:"url"`
+}
+
+func (e *RegisterRPCEndpointEvent) Marshall() (map[string]interface{}, error) {
+	var event map[string]interface{}
+	data, err := json.Marshal(&e)
+	if err != nil {
+		return nil, err
+	}
+	err = json.Unmarshal(data, &event)
+	return event, err
+}
+
+func UnmarshallRegisterRPCEndpointEvent(data map[string]interface{}) (*RegisterRPCEndpointEvent, error) {
+	var event *RegisterRPCEndpointEvent
+	d, err := json.Marshal(data)
+	if err != nil {
+		return nil, err
+	}
+	err = json.Unmarshal(d, &event)
+	return event, err
+}