Added type for handling json types

tx0/message/message_event_response.go

@@ -4,12 +4,14 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+
+	"git.kundeng.us/phoenix/textsender-models/tx0/types"
 )
 
 type MessageEventResponse struct {
 	Id                      uuid.UUID `json:"id,omitempty"`
 	ScheduledMessageEventId uuid.UUID `json:"scheduled_message_event_id,omitempty"`
-	Response                []byte    `json:"response"`
+	Response                types.JSONB    `json:"response"`
 	UserId                  uuid.UUID `json:"user_id,omitempty"`
 	Sent                    time.Time `json:"sent"`
 }

tx0/types/jsonb.go

@@ -0,0 +1,42 @@
+package types
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"fmt"
+)
+
+
+type JSONB json.RawMessage
+
+// Scan implements sql.Scanner
+func (j *JSONB) Scan(value interface{}) error {
+    if value == nil {
+        *j = nil
+        return nil
+    }
+    
+    var data []byte
+    switch v := value.(type) {
+    case []byte:
+        // pgx may pass data as []byte in binary format
+        data = v
+    case string:
+        // pgx may pass data as string in text format
+        data = []byte(v)
+    default:
+        return fmt.Errorf("unsupported type: %T", v)
+    }
+    
+    *j = JSONB(data)
+    return nil
+}
+
+// Value implements driver.Valuer
+func (j JSONB) Value() (driver.Value, error) {
+    if j == nil {
+        return nil, nil
+    } else {
+	return []byte(j), nil
+    }
+}