feat: add json.swift

json.swift

@@ -0,0 +1,21 @@
+#!/usr/bin/env swift
+
+// Reference
+// - https://stackoverflow.com/questions/29599005/how-to-serialize-or-convert-swift-objects-to-json
+
+import Foundation
+
+struct Dog: Codable {
+    var name: String
+    var owner: String
+}
+
+// Encode
+let dog = Dog(name: "Rex", owner: "Etgar")
+
+let jsonEncoder = JSONEncoder()
+jsonEncoder.outputFormatting = .prettyPrinted
+let jsonData = try jsonEncoder.encode(dog)
+let json = String(data: jsonData, encoding: .utf8)
+
+print(json!)