Testing is complete!! And a nice build runner script to boot

shared_models/lib/jwt.dart

@@ -0,0 +1,17 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'jwt.g.dart';
+
+@JsonSerializable()
+class JWTBody {
+  String uuid;
+  String roomUuid;
+  int iat;
+  int exp;
+
+  JWTBody({required this.uuid, required this.roomUuid, required this.iat, required this.exp});
+
+  factory JWTBody.fromJson(Map<String, dynamic> json) => _$JWTBodyFromJson(json);
+
+  Map<String, dynamic> toJson() => _$JWTBodyToJson(this);
+}

shared_models/lib/user.dart

@@ -2,6 +2,8 @@ import 'package:json_annotation/json_annotation.dart';
 
 part 'user.g.dart';
 
+typedef JoinRoomRequest = CreateUserRequest;
+
 @JsonSerializable()
 class CreateUserRequest {
   final String username;
@@ -13,13 +15,16 @@ class CreateUserRequest {
   Map<String, dynamic> toJson() => _$CreateUserRequestToJson(this);
 }
 
+typedef JoinRoomResponse = CreateUserResponse;
+
 @JsonSerializable()
 class CreateUserResponse {
   final String? token;
   final String? error;
+  final String? uuid;
   final bool success;
 
-  CreateUserResponse({required this.token, required this.success, this.error});
+  CreateUserResponse({required this.token, required this.uuid, required this.success, this.error});
 
   factory CreateUserResponse.fromJson(Map<String, dynamic> json) => _$CreateUserResponseFromJson(json);