ToStringDictionary

src/Spoleto.Common/Helpers/HttpHelper.cs

@@ -18,7 +18,7 @@ namespace Spoleto.Common.Helpers
     public static class HttpHelper
     {
         /// <summary>
-        /// Converts the given object to HTTP query string.
+        /// Converts the given object to the HTTP query string.
         /// </summary>
         public static string ToQueryString<T>(T body)
         {
@@ -46,6 +46,39 @@ public static string ToQueryString<T>(T body)
             return string.Join("&", args);
         }
 
+        /// <summary>
+        /// Converts the given object to the string <see cref="Dictionary{String, String}"/>.
+        /// </summary>
+        public static Dictionary<string,string> ToStringDictionary<T>(T body)
+        {
+            var bodyJson = JsonHelper.ToJson(body);
+            var dictionaryAsObjectValues = JsonHelper.FromJson<Dictionary<string, object>>(bodyJson);
+
+            var dictionary = new Dictionary<string, string>();
+            foreach (var key in dictionaryAsObjectValues.Keys)
+            {
+                var jsonValue = (JsonElement)dictionaryAsObjectValues[key];
+                var objValue = FlattenJsonValue(jsonValue);
+                if (objValue is string str)
+                {
+                    dictionary.Add(HttpUtility.UrlEncode(key), HttpUtility.UrlEncode(str));
+                }
+                else if (objValue is IEnumerable enumerable)
+                {
+                    var count = 0;
+                    foreach (string item in enumerable)
+                    {
+                        if (count++ > 0)
+                            throw new ArgumentException("Cannot use IEnumerable argument with more than 1 element to convert to the Dictionary.");
+
+                        dictionary.Add(HttpUtility.UrlEncode(key), HttpUtility.UrlEncode(item));
+                    }
+                }
+            }
+
+            return dictionary;
+        }
+
         private static object FlattenJsonValue(JsonElement objValue)
         {
             return objValue.ValueKind switch