[DX-3548] feat: swap api key

sample/Assets/Scenes/SelectAuthMethod.unity

@@ -206,8 +206,8 @@ MonoBehaviour:
   m_TargetGraphic: {fileID: 416242725}
   m_HandleRect: {fileID: 416242724}
   m_Direction: 0
-  m_Value: 1
-  m_Size: 0.9999999
+  m_Value: 0
+  m_Size: 1
   m_NumberOfSteps: 0
   m_OnValueChanged:
     m_PersistentCalls:
@@ -1324,7 +1324,7 @@ MonoBehaviour:
   m_HandleRect: {fileID: 167431871}
   m_Direction: 2
   m_Value: 1
-  m_Size: 0.99999994
+  m_Size: 1
   m_NumberOfSteps: 0
   m_OnValueChanged:
     m_PersistentCalls:
@@ -1673,8 +1673,8 @@ RectTransform:
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
-  m_AnchoredPosition: {x: 1222.7355, y: 0}
-  m_SizeDelta: {x: 2405.471, y: 0}
+  m_AnchoredPosition: {x: 1016.24, y: 0}
+  m_SizeDelta: {x: 1992.48, y: 0}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!114 &1661390145
 MonoBehaviour:
@@ -1768,8 +1768,8 @@ RectTransform:
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
-  m_AnchoredPosition: {x: 1222.7355, y: 0}
-  m_SizeDelta: {x: 2405.471, y: 0}
+  m_AnchoredPosition: {x: 1016.24, y: 0}
+  m_SizeDelta: {x: 1992.48, y: 0}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!114 &1688502349
 MonoBehaviour:
@@ -1822,21 +1822,21 @@ MonoBehaviour:
 
 
     1.
-    Device Code Authorisation Device Code Authorisation is available for all supported
-    platforms. This method opens the player''s default browser and guides them through
-    the authentication flow.
+    Authorisation Code Flow with Proof Key for Code Exchange (PKCE) is available
+    for Android, iOS, macOS and WebGL (not officially supported). This method provides
+    a seamless and secure authentication experience by opening a pop-up window on
+    macOS or an in-app browser on mobile devices. Players are automatically redirected
+    back to the game once authenticated, eliminating manual switching.
 
 
-    2. Authorisation Code Flow with Proof Key for
-    Code Exchange (PKCE) PKCE is available for Android, iOS and macOS. This method
-    simplifies the process by opening a pop-up window on macOS or an in-app browser
-    on mobile devices, guiding users through the authentication flow. Once authenticated,
-    players are automatically redirected back to the game, eliminating the need for
-    manual switching.
+    2. Device
+    Code Authorisation is available for Windows, Android, iOS and macOS. This method
+    opens the player''s default browser and guides them through the authentication
+    flow.
 
 
-    Recommendation: For an optimal gaming experience on Android,
-    iOS, macOS or WebGL, it is recommended to use the PKCE flow.'
+    Recommendation: Whenever possible, use the PKCE flow as it is the
+    most secure and seamless method for authentication on Android, iOS and macOS.'
 --- !u!222 &1688502351
 CanvasRenderer:
   m_ObjectHideFlags: 0
@@ -1912,7 +1912,7 @@ MonoBehaviour:
     m_PersistentCalls:
       m_Calls: []
   m_FontData:
-    m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 3}
+    m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
     m_FontSize: 20
     m_FontStyle: 0
     m_BestFit: 0

src/Packages/Marketplace/Runtime/OnRamp/OnRamp.cs

@@ -39,18 +39,18 @@ public OnRamp(string environment, string email, string address)
         }
 
         /// <summary>
-        /// Generates a link for the on-ramp flow.
+        /// Generates a URL for the on-ramp flow.
         /// </summary>
-        /// <param name="fiatCurrency">The fiat currency to be used (default is "USD").</param>
-        /// <param name="defaultFiatAmount">The default amount of fiat currency (default is "50").</param>
-        /// <param name="defaultCryptoCurrency">The default cryptocurrency (default is "IMX")..</param>
-        /// <param name="defaultCryptoCurrencyList">A comma-separated list of available cryptocurrencies to purchase (default is "imx,eth,usdc").</param>
-        /// <returns>An on-ramp URL</returns>
+        /// <param name="fiatCurrency">The fiat currency to use (default: "USD").</param>
+        /// <param name="fiatAmount">The amount of fiat currency to spend when purchasing cryptocurrency (default: "50").</param>
+        /// <param name="cryptoCurrency">The cryptocurrency to purchase (default: "IMX").</param>
+        /// <param name="cryptoCurrencyList">A comma-separated list of available cryptocurrencies for purchase (default: "imx,eth,usdc").</param>
+        /// <returns>The generated on-ramp URL.</returns>
         public string GetLink(
             string fiatCurrency = "USD",
-            string defaultFiatAmount = "50",
-            string defaultCryptoCurrency = "IMX",
-            string defaultCryptoCurrencyList = "imx,eth,usdc"
+            string fiatAmount = "50",
+            string cryptoCurrency = "IMX",
+            string cryptoCurrencyList = "imx,eth,usdc"
         )
         {
             var baseUrl = BaseUrls[_environment];
@@ -65,14 +65,14 @@ public string GetLink(
             {"productsAvailed", "buy"},
             {"exchangeScreenTitle", "Buy"},
             {"themeColor", "0D0D0D"},
-            {"defaultCryptoCurrency", defaultCryptoCurrency},
+            {"defaultCryptoCurrency", cryptoCurrency},
             {"email", Uri.EscapeDataString(_email)},
             {"isAutoFillUserData", "true"},
             {"disableWalletAddressForm", "true"},
-            {"defaultFiatAmount", defaultFiatAmount},
+            {"defaultFiatAmount", fiatAmount},
             {"defaultFiatCurrency", fiatCurrency},
             {"walletAddress", _address},
-            {"cryptoCurrencyList", defaultCryptoCurrencyList}
+            {"cryptoCurrencyList", cryptoCurrencyList}
         };
 
             var queryString = string.Join("&", queryParams.Select(kvp => $"{kvp.Key}={Uri.EscapeDataString(kvp.Value)}").ToArray());

src/Packages/Marketplace/Runtime/Swap/Swap.cs

@@ -11,25 +11,23 @@ namespace Immutable.Marketplace.Swap
     public class Swap
     {
         private readonly string _environment;
+        private readonly string _publishableKey;
         private static readonly Dictionary<string, string> BaseUrls = new()
         {
             { "sandbox", "https://checkout-playground.sandbox.immutable.com/checkout/swap" },
             { "production", "https://toolkit.immutable.com/checkout/swap" }
         };
 
-        private static readonly Dictionary<string, string> ApiKeys = new()
-        {
-            { "sandbox", "pk_imapik-test-7-hfC5T$W$eEDE8Mc5mp" }, // This can be hardcoded as it is a public API key
-            { "production", "pk_imapik-WGd9orNd8mLdtTCTb3CP" }
-        };
-
         /// <summary>
         /// Initialises a new instance of the <see cref="Swap"/> class.
         /// </summary>
-        /// <param name="environment">Specifies the environment (<c>sandbox</c> or <c>production</c>).</param>
-        public Swap(string environment)
+        /// <param name="environment">The environment to use (<c>sandbox</c> or <c>production</c>).</param>
+        /// <param name="publishableKey">The publishable key obtained from <a href="https://hub.immutable.com/">Immutable Hub</a>.  
+        /// See <a href="https://docs.immutable.com/api/zkEVM/apikeys">API keys</a> for more details.</param>
+        public Swap(string environment, string publishableKey)
         {
             _environment = environment;
+            _publishableKey = publishableKey;
         }
 
         /// <summary>
@@ -41,11 +39,10 @@ public Swap(string environment)
         public string GetLink(string? fromTokenAddress = null, string? toTokenAddress = null)
         {
             var baseUrl = BaseUrls[_environment];
-            var apiKey = ApiKeys[_environment];
 
             var queryParams = new Dictionary<string, string>
             {
-                {"publishableKey", apiKey}
+                {"publishableKey", _publishableKey}
             };
 
             if (!string.IsNullOrEmpty(fromTokenAddress))