Merge pull request #10 from elevenlabs/angelo/add_dynamic_variables

add support for dynamic variables

Author: AngeloGiacco

Sources/ElevenLabsSwift/ElevenLabsSwift.swift

@@ -217,24 +217,34 @@ public class ElevenLabsSDK {
 
     // MARK: - Connection
 
+    public enum DynamicVariableValue: Sendable {
+        case string(String)
+        case number(Double)
+        case boolean(Bool)
+        case int(Int)
+    }
+
     public struct SessionConfig: Sendable {
         public let signedUrl: String?
         public let agentId: String?
         public let overrides: ConversationConfigOverride?
         public let customLlmExtraBody: [String: LlmExtraBodyValue]?
+        public let dynamicVariables: [String: DynamicVariableValue]?
 
-        public init(signedUrl: String, overrides: ConversationConfigOverride? = nil, customLlmExtraBody: [String: LlmExtraBodyValue]? = nil, clientTools _: ClientTools = ClientTools()) {
+        public init(signedUrl: String, overrides: ConversationConfigOverride? = nil, customLlmExtraBody: [String: LlmExtraBodyValue]? = nil, clientTools _: ClientTools = ClientTools(), dynamicVariables: [String: DynamicVariableValue]? = nil) {
             self.signedUrl = signedUrl
             agentId = nil
             self.overrides = overrides
             self.customLlmExtraBody = customLlmExtraBody
+            self.dynamicVariables = dynamicVariables
         }
 
-        public init(agentId: String, overrides: ConversationConfigOverride? = nil, customLlmExtraBody: [String: LlmExtraBodyValue]? = nil, clientTools _: ClientTools = ClientTools()) {
+        public init(agentId: String, overrides: ConversationConfigOverride? = nil, customLlmExtraBody: [String: LlmExtraBodyValue]? = nil, clientTools _: ClientTools = ClientTools(), dynamicVariables: [String: DynamicVariableValue]? = nil) {
             self.agentId = agentId
             signedUrl = nil
             self.overrides = overrides
             self.customLlmExtraBody = customLlmExtraBody
+            self.dynamicVariables = dynamicVariables
         }
     }
 
@@ -285,6 +295,11 @@ public class ElevenLabsSDK {
                 initEvent["custom_llm_extra_body"] = customBody.mapValues { $0.jsonValue }
             }
 
+            // add dynamic variables if present
+            if let dynamicVars = config.dynamicVariables {
+                initEvent["dynamic_variables"] = dynamicVars
+            }
+
             let jsonData = try JSONSerialization.data(withJSONObject: initEvent)
             let jsonString = String(data: jsonData, encoding: .utf8)!
             try await socket.send(.string(jsonString))