diff --git a/src/Prospect.Server.Api/Controllers/ClientController.cs b/src/Prospect.Server.Api/Controllers/ClientController.cs
new file mode 100644
index 0000000..c807999
--- /dev/null
+++ b/src/Prospect.Server.Api/Controllers/ClientController.cs
@@ -0,0 +1,200 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.AspNetCore.Mvc;
+using Prospect.Server.Api.Models.Client;
+using Prospect.Server.Api.Models.Client.Data;
+
+namespace Prospect.Server.Api.Controllers
+{
+    [Route("Client")]
+    [ApiController]
+    public class ClientController : Controller
+    {
+        [HttpPost("LoginWithSteam")]
+        [Produces("application/json")]
+        public IActionResult LoginWithSteam(ClientLoginWithSteamRequest request)
+        {
+            var playerIdOne = "AAAABBBBCCCCDDDD"; // PlayFabId
+            var playerIdTwo = "0000111122223333"; // EntityId 
+            var playerName = "AeonLucid";
+            
+            var titleId = "A22AB";
+            var publisherId = "850902E5B40508ED";
+            
+            if (!string.IsNullOrEmpty(request.SteamTicket))
+            {
+                return Ok(new ClientResponse<FServerLoginResult>
+                {
+                    Code = 200,
+                    Status = "OK",
+                    Data = new FServerLoginResult
+                    {
+                        EntityToken = new FEntityTokenResponse
+                        {
+                            Entity = new FEntityKey
+                            {
+                                Id = playerIdTwo,
+                                Type = "title_player_account",
+                                TypeString = "title_player_account"
+                            },
+                            EntityToken = "RW50aXR5VG9rZW4=",
+                            TokenExpiration = DateTime.UtcNow.AddDays(1),
+                        },
+                        InfoResultPayload = new FGetPlayerCombinedInfoResultPayload
+                        {
+                            CharacterInventories = new List<object>(),
+                            PlayerProfile = new FPlayerProfileModel
+                            {
+                                DisplayName = playerName,
+                                PlayerId = playerIdOne,
+                                PublisherId = publisherId,
+                                TitleId = titleId
+                            },
+                            UserDataVersion = 0,
+                            UserInventory = new List<object>(),
+                            UserReadOnlyDataVersion = 0
+                        },
+                        LastLoginTime = DateTime.UtcNow,
+                        NewlyCreated = false,
+                        PlayFabId = playerIdOne,
+                        SessionTicket = "SOME",
+                        SettingsForUser = new FUserSettings
+                        {
+                            GatherDeviceInfo = true,
+                            GatherFocusInfo = true,
+                            NeedsAttribution = false,
+                        },
+                        TreatmentAssignment = new FTreatmentAssignment
+                        {
+                            Variables = new List<FVariable>(),
+                            Variants = new List<string>()
+                        }
+                    }
+                });
+            }
+            
+            return BadRequest(new ClientResponse
+            {
+                Code = 400,
+                Status = "BadRequest",
+                Error = "InvalidSteamTicket",
+                ErrorCode = 1010,
+                ErrorMessage = "Steam API AuthenticateUserTicket error response .."
+            });
+        }
+
+        [HttpPost("AddGenericID")]
+        [Produces("application/json")]
+        public IActionResult AddGenericId(FAddGenericIDRequest request)
+        {
+            return Ok(new ClientResponse
+            {
+                Code = 200,
+                Status = "OK"
+            });
+        }
+
+        [HttpPost("UpdateUserTitleDisplayName")]
+        [Produces("application/json")]
+        public IActionResult AddGenericId(FUpdateUserTitleDisplayNameRequest request)
+        {
+            return Ok(new ClientResponse<FUpdateUserTitleDisplayNameResult>
+            {
+                Code = 200,
+                Status = "OK",
+                Data = new FUpdateUserTitleDisplayNameResult
+                {
+                    DisplayName = request.DisplayName
+                }
+            });
+        }
+
+        [HttpPost("GetUserData")]
+        [Produces("application/json")]
+        public IActionResult GetUserData(FGetUserDataRequest request)
+        {
+            return Ok(new ClientResponse<FGetUserDataResult>
+            {
+                Code = 200,
+                Status = "OK",
+                Data = new FGetUserDataResult
+                {
+                    Data = new Dictionary<string, FUserDataRecord>(),
+                    DataVersion = 0
+                }
+            });
+        }
+
+        [HttpPost("GetUserReadOnlyData")]
+        [Produces("application/json")]
+        public IActionResult GetUserReadOnlyData(FGetUserDataRequest request)
+        {
+            return Ok(new ClientResponse<FGetUserDataResult>
+            {
+                Code = 200,
+                Status = "OK",
+                Data = new FGetUserDataResult
+                {
+                    Data = new Dictionary<string, FUserDataRecord>(),
+                    DataVersion = 0
+                }
+            });
+        }
+
+        [HttpPost("GetUserInventory")]
+        [Produces("application/json")]
+        public IActionResult GetUserReadOnlyData(FGetUserInventoryRequest request)
+        {
+            return Ok(new ClientResponse<FGetUserInventoryResult>
+            {
+                Code = 200,
+                Status = "OK",
+                Data = new FGetUserInventoryResult
+                {
+                    Inventory = new List<FItemInstance>
+                    {
+                        new FItemInstance
+                        {
+                            ItemId = "Helmet_03",
+                            ItemInstanceId = "0102030405060708",
+                            ItemClass = "Helmet",
+                            PurchaseDate = DateTime.Now.AddDays(-1),
+                            CatalogVersion = "StaticItems",
+                            DisplayName = "Helmet",
+                            UnitPrice = 0,
+                            CustomData = new Dictionary<string, string>
+                            {
+                                ["insurance"] = "None",
+                                ["mods"] = "{\"m\":[]}",
+                                ["vanity_misc_data"] = "{\"v\":\"\",\"s\":\"\",\"l\":3,\"a\":1,\"d\":300}"
+                            }
+                        }
+                    },
+                    VirtualCurrency = new Dictionary<string, int>
+                    {
+                        ["AE"] = 0,
+                        ["AS"] = 0,
+                        ["AU"] = 0,
+                        ["SC"] = 12345
+                    },
+                    VirtualCurrencyRechargeTimes = new Dictionary<string, FVirtualCurrencyRechargeTime>()
+                }
+            });
+        }
+
+        [HttpPost("GetTitleData")]
+        [Produces("application/json")]
+        public IActionResult GetTitleData(FGetTitleDataRequest request)
+        {
+            return Ok(new ClientResponse<FGetTitleDataResult>
+            {
+                Code = 200,
+                Status = "OK",
+                Data = new FGetTitleDataResult()
+                {
+                    Data = new Dictionary<string, string>()
+                }
+            });
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Middleware/RequestLoggerMiddleware.cs b/src/Prospect.Server.Api/Middleware/RequestLoggerMiddleware.cs
new file mode 100644
index 0000000..fd91bca
--- /dev/null
+++ b/src/Prospect.Server.Api/Middleware/RequestLoggerMiddleware.cs
@@ -0,0 +1,57 @@
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Extensions;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+
+namespace Prospect.Server.Api.Middleware
+{
+    public class RequestLoggerMiddleware
+    {
+        private readonly ILogger<RequestLoggerMiddleware> _logger;
+        private readonly RequestDelegate _next;
+
+        public RequestLoggerMiddleware(ILogger<RequestLoggerMiddleware> logger, RequestDelegate next)
+        {
+            _logger = logger;
+            _next = next;
+        }
+
+        public async Task Invoke(HttpContext context)
+        {
+            var body = await RequestAsync(context.Request);
+
+            if (context.Request.Method == "POST")
+            {
+                _logger.LogDebug("URL {Url} Body {Body}", context.Request.GetDisplayUrl(), body);
+            }
+            
+            await _next(context);
+        }
+
+        private static async Task<string> RequestAsync(HttpRequest request)
+        {
+            request.EnableBuffering();
+
+            try
+            {
+                using (var reader = new StreamReader(request.Body, Encoding.UTF8, false, 4096, true))
+                {
+                    var body = await reader.ReadToEndAsync();
+                    if (body.StartsWith("{"))
+                    {
+                        return JsonConvert.SerializeObject(JsonConvert.DeserializeObject(body), Formatting.Indented);
+                    }
+
+                    return body;
+                }
+            }
+            finally
+            {
+                request.Body.Position = 0;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/ClientLoginWithSteamRequest.cs b/src/Prospect.Server.Api/Models/Client/ClientLoginWithSteamRequest.cs
new file mode 100644
index 0000000..31e0480
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/ClientLoginWithSteamRequest.cs
@@ -0,0 +1,59 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class ClientLoginWithSteamRequest
+    {
+        [JsonPropertyName("CreateAccount")]
+        public bool CreateAccount { get; set; }
+        
+        [JsonPropertyName("CustomTags")]
+        public JsonDocument CustomTags { get; set; }
+        
+        [JsonPropertyName("EncryptedRequest")]
+        public string EncryptedRequest { get; set; }
+        
+        [JsonPropertyName("InfoRequestParameters")]
+        public InfoParameters InfoRequestParameters { get; set; }
+        
+        [JsonPropertyName("PlayerSecret")]
+        public string PlayerSecret { get; set; }
+        
+        [JsonPropertyName("SteamTicket")]
+        public string SteamTicket { get; set; }
+    }
+
+    public class InfoParameters
+    {
+        [JsonPropertyName("GetCharacterInventories")]
+        public bool GetCharacterInventories { get; set; }
+
+        [JsonPropertyName("GetCharacterList")]
+        public bool GetCharacterList { get; set; }
+
+        [JsonPropertyName("GetPlayerProfile")]
+        public bool GetPlayerProfile { get; set; }
+
+        [JsonPropertyName("GetPlayerStatistics")]
+        public bool GetPlayerStatistics { get; set; }
+
+        [JsonPropertyName("GetTitleData")]
+        public bool GetTitleData { get; set; }
+
+        [JsonPropertyName("GetUserAccountInfo")]
+        public bool GetUserAccountInfo { get; set; }
+
+        [JsonPropertyName("GetUserData")]
+        public bool GetUserData { get; set; }
+
+        [JsonPropertyName("GetUserInventory")]
+        public bool GetUserInventory { get; set; }
+
+        [JsonPropertyName("GetUserReadOnlyData")]
+        public bool GetUserReadOnlyData { get; set; }
+
+        [JsonPropertyName("GetUserVirtualCurrency")]
+        public bool GetUserVirtualCurrency { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/ClientResponse.cs b/src/Prospect.Server.Api/Models/Client/ClientResponse.cs
new file mode 100644
index 0000000..ed483fb
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/ClientResponse.cs
@@ -0,0 +1,32 @@
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class ClientResponse
+    {
+        [JsonPropertyName("code")]
+        public int Code { get; set; }
+
+        [JsonPropertyName("status")]
+        public string Status { get; set; }
+
+        [JsonPropertyName("error")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string Error { get; set; }
+
+        [JsonPropertyName("errorCode")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public int ErrorCode { get; set; }
+
+        [JsonPropertyName("errorMessage")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string ErrorMessage { get; set; }
+    }
+
+    public class ClientResponse<T> : ClientResponse
+    {
+        [JsonPropertyName("data")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public T Data { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FEntityKey.cs b/src/Prospect.Server.Api/Models/Client/Data/FEntityKey.cs
new file mode 100644
index 0000000..26f4adf
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FEntityKey.cs
@@ -0,0 +1,23 @@
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FEntityKey
+    {
+        /// <summary>
+        ///     Unique ID of the entity.
+        /// </summary>
+        [JsonPropertyName("Id")]
+        public string Id { get; set; }
+
+        /// <summary>
+        ///     [optional] Entity type. See https://docs.microsoft.com/gaming/playfab/features/data/entities/available-built-in-entity-types
+        /// </summary>
+        [JsonPropertyName("Type")]
+        public string Type { get; set; }
+
+        // Not in PlayFab SDK
+        [JsonPropertyName("TypeString")]
+        public string TypeString { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FEntityTokenResponse.cs b/src/Prospect.Server.Api/Models/Client/Data/FEntityTokenResponse.cs
new file mode 100644
index 0000000..8c18309
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FEntityTokenResponse.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FEntityTokenResponse
+    {
+        /// <summary>
+        ///     [optional] The entity id and type.
+        /// </summary>
+        [JsonPropertyName("Entity")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public FEntityKey Entity { get; set; }
+        
+        /// <summary>
+        ///     [optional] The token used to set X-EntityToken for all entity based API calls.
+        /// </summary>
+        [JsonPropertyName("EntityToken")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string EntityToken { get; set; }
+
+        /// <summary>
+        ///     [optional] The time the token will expire, if it is an expiring token, in UTC.
+        /// </summary>
+        [JsonPropertyName("TokenExpiration")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public DateTime? TokenExpiration { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FGenericServiceId.cs b/src/Prospect.Server.Api/Models/Client/Data/FGenericServiceId.cs
new file mode 100644
index 0000000..31d00f3
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FGenericServiceId.cs
@@ -0,0 +1,19 @@
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FGenericServiceId
+    {
+        /// <summary>
+        ///     Name of the service for which the player has a unique identifier.
+        /// </summary>
+        [JsonPropertyName("ServiceName")]
+        public string ServiceName { get; set; }
+        
+        /// <summary>
+        ///     Unique identifier of the player in that service.
+        /// </summary>
+        [JsonPropertyName("UserId")]
+        public string UserId { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FGetPlayerCombinedInfoResultPayload.cs b/src/Prospect.Server.Api/Models/Client/Data/FGetPlayerCombinedInfoResultPayload.cs
new file mode 100644
index 0000000..d496608
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FGetPlayerCombinedInfoResultPayload.cs
@@ -0,0 +1,60 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FGetPlayerCombinedInfoResultPayload
+    {
+        // TSharedPtr<FUserAccountInfo> AccountInfo;
+        
+        /// <summary>
+        ///     [optional] Inventories for each character for the user.
+        /// </summary>
+        [JsonPropertyName("CharacterInventories")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public List<object> CharacterInventories { get; set; }
+        
+        // TArray<FCharacterResult> CharacterList;
+
+        /// <summary>
+        ///     [optional] The profile of the players. This profile is not guaranteed to be up-to-date. For a new player, this profile will not
+        ///     exist.
+        /// </summary>
+        [JsonPropertyName("PlayerProfile")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public FPlayerProfileModel PlayerProfile { get; set; }
+        
+        // TArray<FStatisticValue> PlayerStatistics;
+        
+        // TMap<FString, FString> TitleData;
+        
+        // TMap<FString, FUserDataRecord> UserData;
+        
+        /// <summary>
+        ///     The version of the UserData that was returned.
+        /// </summary>
+        [JsonPropertyName("UserDataVersion")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public uint? UserDataVersion { get; set; }
+        
+        /// <summary>
+        ///     [optional] Array of inventory items in the user's current inventory.
+        /// </summary>
+        [JsonPropertyName("UserInventory")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public List<object> UserInventory { get; set; }
+
+        // TMap<FString, FUserDataRecord> UserReadOnlyData;
+        
+        /// <summary>
+        ///     The version of the Read-Only UserData that was returned.
+        /// </summary>
+        [JsonPropertyName("UserReadOnlyDataVersion")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public uint? UserReadOnlyDataVersion { get; set; }
+        
+        // TMap<FString, int32> UserVirtualCurrency;
+        
+        // TMap<FString, FVirtualCurrencyRechargeTime> UserVirtualCurrencyRechargeTimes;
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FItemInstance.cs b/src/Prospect.Server.Api/Models/Client/Data/FItemInstance.cs
new file mode 100644
index 0000000..36f46b1
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FItemInstance.cs
@@ -0,0 +1,116 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FItemInstance
+    {
+        /// <summary>
+        ///     [optional] Game specific comment associated with this instance when it was added to the user inventory.
+        /// </summary>
+        [JsonPropertyName("Annotation")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string Annotation { get; set; }
+        
+        /// <summary>
+        ///     [optional] Array of unique items that were awarded when this catalog item was purchased.
+        /// </summary>
+        [JsonPropertyName("BundleContents")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public List<string> BundleContents { get; set; }
+        
+        /// <summary>
+        ///     [optional] Unique identifier for the parent inventory item, as defined in the catalog, for object which were added from a bundle or
+        ///     container.
+        /// </summary>
+        [JsonPropertyName("BundleParent")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string BundleParent { get; set; }
+        
+        /// <summary>
+        ///     [optional] Catalog version for the inventory item, when this instance was created.
+        /// </summary>
+        [JsonPropertyName("CatalogVersion")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string CatalogVersion { get; set; }
+        
+        /// <summary>
+        ///     [optional] A set of custom key-value pairs on the instance of the inventory item, which is not to be confused with the catalog
+        ///     item's custom data.
+        /// </summary>
+        [JsonPropertyName("CustomData")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public Dictionary<string, string> CustomData { get; set; }
+        
+        /// <summary>
+        ///     [optional] CatalogItem.DisplayName at the time this item was purchased.
+        /// </summary>
+        [JsonPropertyName("DisplayName")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string DisplayName { get; set; }
+        
+        /// <summary>
+        ///     [optional] Timestamp for when this instance will expire.
+        /// </summary>
+        [JsonPropertyName("Expiration")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public DateTime? Expiration { get; set; }
+        
+        /// <summary>
+        ///     [optional] Class name for the inventory item, as defined in the catalog.
+        /// </summary>
+        [JsonPropertyName("ItemClass")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string ItemClass { get; set; }
+        
+        /// <summary>
+        ///     [optional] Unique identifier for the inventory item, as defined in the catalog.
+        /// </summary>
+        [JsonPropertyName("ItemId")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string ItemId { get; set; }
+        
+        /// <summary>
+        ///     [optional] Unique item identifier for this specific instance of the item.
+        /// </summary>
+        [JsonPropertyName("ItemInstanceId")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string ItemInstanceId { get; set; }
+        
+        /// <summary>
+        ///     [optional] Timestamp for when this instance was purchased.
+        /// </summary>
+        [JsonPropertyName("PurchaseDate")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public DateTime? PurchaseDate { get; set; }
+        
+        /// <summary>
+        ///     [optional] Total number of remaining uses, if this is a consumable item.
+        /// </summary>
+        [JsonPropertyName("RemainingUses")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public int? RemainingUses { get; set; }
+        
+        /// <summary>
+        ///     [optional] Currency type for the cost of the catalog item. Not available when granting items.
+        /// </summary>
+        [JsonPropertyName("UnitCurrency")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string UnitCurrency { get; set; }
+        
+        /// <summary>
+        ///     Cost of the catalog item in the given currency. Not available when granting items.
+        /// </summary>
+        [JsonPropertyName("UnitPrice")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public uint? UnitPrice { get; set; }
+        
+        /// <summary>
+        ///     [optional] The number of uses that were added or removed to this item in this call.
+        /// </summary>
+        [JsonPropertyName("UsesIncrementedBy")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public int? UsesIncrementedBy { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FPlayerProfileModel.cs b/src/Prospect.Server.Api/Models/Client/Data/FPlayerProfileModel.cs
new file mode 100644
index 0000000..e11a50d
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FPlayerProfileModel.cs
@@ -0,0 +1,35 @@
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FPlayerProfileModel
+    {
+        /// <summary>
+        ///     [optional] Player display name
+        /// </summary>
+        [JsonPropertyName("DisplayName")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string DisplayName { get; set; }
+        
+        /// <summary>
+        ///     [optional] PlayFab player account unique identifier
+        /// </summary>
+        [JsonPropertyName("PlayerId")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string PlayerId { get; set; }
+        
+        /// <summary>
+        ///     [optional] Publisher this player belongs to
+        /// </summary>
+        [JsonPropertyName("PublisherId")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string PublisherId { get; set; }
+
+        /// <summary>
+        ///     [optional] Title ID this player profile applies to
+        /// </summary>
+        [JsonPropertyName("TitleId")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string TitleId { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FTreatmentAssignment.cs b/src/Prospect.Server.Api/Models/Client/Data/FTreatmentAssignment.cs
new file mode 100644
index 0000000..0cfeb15
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FTreatmentAssignment.cs
@@ -0,0 +1,22 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FTreatmentAssignment
+    {
+        /// <summary>
+        ///     [optional] List of the experiment variables.
+        /// </summary>
+        [JsonPropertyName("Variables")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public List<FVariable> Variables { get; set; }
+        
+        /// <summary>
+        ///     [optional] List of the experiment variants.
+        /// </summary>
+        [JsonPropertyName("Variants")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public List<string> Variants { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FUserDataRecord.cs b/src/Prospect.Server.Api/Models/Client/Data/FUserDataRecord.cs
new file mode 100644
index 0000000..2c4eb74
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FUserDataRecord.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FUserDataRecord
+    {
+        /// <summary>
+        ///     Timestamp for when this data was last updated.
+        /// </summary>
+        [JsonPropertyName("LastUpdated")]
+        public DateTime LastUpdated { get; set; }
+        
+        /// <summary>
+        ///     [optional] Indicates whether this data can be read by all users (public) or only the user (private). This is used for GetUserData
+        ///     requests being made by one player about another player.
+        /// </summary>
+        [JsonPropertyName("Permission")]
+        [JsonConverter(typeof(JsonStringEnumConverter))]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public UserDataPermission Permission { get; set; }
+        
+        /// <summary>
+        ///     [optional] Data stored for the specified user data key.
+        /// </summary>
+        [JsonPropertyName("Value")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string Value { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FUserSettings.cs b/src/Prospect.Server.Api/Models/Client/Data/FUserSettings.cs
new file mode 100644
index 0000000..509a816
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FUserSettings.cs
@@ -0,0 +1,25 @@
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FUserSettings
+    {
+        /// <summary>
+        ///     Boolean for whether this player is eligible for gathering device info.
+        /// </summary>
+        [JsonPropertyName("GatherDeviceInfo")]
+        public bool GatherDeviceInfo { get; set; }
+        
+        /// <summary>
+        ///     Boolean for whether this player should report OnFocus play-time tracking.
+        /// </summary>
+        [JsonPropertyName("GatherFocusInfo")]
+        public bool GatherFocusInfo { get; set; }
+        
+        /// <summary>
+        ///     Boolean for whether this player is eligible for ad tracking.
+        /// </summary>
+        [JsonPropertyName("NeedsAttribution")]
+        public bool NeedsAttribution { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FVariable.cs b/src/Prospect.Server.Api/Models/Client/Data/FVariable.cs
new file mode 100644
index 0000000..718c2cf
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FVariable.cs
@@ -0,0 +1,20 @@
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FVariable
+    {
+        /// <summary>
+        ///     Name of the variable.
+        /// </summary>
+        [JsonPropertyName("Name")]
+        public string Name { get; set; }
+        
+        /// <summary>
+        ///     [optional] Value of the variable.
+        /// </summary>
+        [JsonPropertyName("Value")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string Value { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/FVirtualCurrencyRechargeTime.cs b/src/Prospect.Server.Api/Models/Client/Data/FVirtualCurrencyRechargeTime.cs
new file mode 100644
index 0000000..f17edc3
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/FVirtualCurrencyRechargeTime.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public class FVirtualCurrencyRechargeTime
+    {
+        /// <summary>
+        ///     Maximum value to which the regenerating currency will automatically increment. Note that it can exceed this value
+        ///     through use of the AddUserVirtualCurrency API call. However, it will not regenerate automatically until it has fallen
+        ///     below this value.
+        /// </summary>
+        [JsonPropertyName("RechargeMax")]
+        public int RechargeMax { get; set; }
+        
+        /// <summary>
+        ///     Server timestamp in UTC indicating the next time the virtual currency will be incremented.
+        /// </summary>
+        [JsonPropertyName("RechargeTime")]
+        public DateTime RechargeTime { get; set; }
+        
+        /// <summary>
+        ///     Time remaining (in seconds) before the next recharge increment of the virtual currency.
+        /// </summary>
+        [JsonPropertyName("SecondsToRecharge")]
+        public int SecondsToRecharge { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/Data/UserDataPermission.cs b/src/Prospect.Server.Api/Models/Client/Data/UserDataPermission.cs
new file mode 100644
index 0000000..4ab44ab
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/Data/UserDataPermission.cs
@@ -0,0 +1,8 @@
+namespace Prospect.Server.Api.Models.Client.Data
+{
+    public enum UserDataPermission
+    {
+        Public,
+        Private
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FAddGenericIDRequest.cs b/src/Prospect.Server.Api/Models/Client/FAddGenericIDRequest.cs
new file mode 100644
index 0000000..fa44472
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FAddGenericIDRequest.cs
@@ -0,0 +1,11 @@
+using System.Text.Json.Serialization;
+using Prospect.Server.Api.Models.Client.Data;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FAddGenericIDRequest
+    {
+        [JsonPropertyName("GenericId")]
+        public FGenericServiceId GenericId { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FGetTitleDataRequest.cs b/src/Prospect.Server.Api/Models/Client/FGetTitleDataRequest.cs
new file mode 100644
index 0000000..01c5280
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FGetTitleDataRequest.cs
@@ -0,0 +1,21 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FGetTitleDataRequest
+    {
+        /// <summary>
+        ///     [optional] Specific keys to search for in the title data (leave null to get all keys)
+        /// </summary>
+        [JsonPropertyName("Keys")]
+        public List<string> Keys { get; set; }
+        
+        /// <summary>
+        ///     [optional] Name of the override. This value is ignored when used by the game client; otherwise, the overrides are applied
+        ///     automatically to the title data.
+        /// </summary>
+        [JsonPropertyName("OverrideLabel")]
+        public string OverrideLabel { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FGetTitleDataResult.cs b/src/Prospect.Server.Api/Models/Client/FGetTitleDataResult.cs
new file mode 100644
index 0000000..0ae60d6
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FGetTitleDataResult.cs
@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FGetTitleDataResult
+    {
+        /// <summary>
+        ///     [optional] a dictionary object of key / value pairs
+        /// </summary>
+        [JsonPropertyName("Data")]
+        public Dictionary<string, string> Data { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FGetUserDataRequest.cs b/src/Prospect.Server.Api/Models/Client/FGetUserDataRequest.cs
new file mode 100644
index 0000000..aa91c67
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FGetUserDataRequest.cs
@@ -0,0 +1,28 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FGetUserDataRequest
+    {
+        /// <summary>
+        ///     [optional] The version that currently exists according to the caller. The call will return the data for all of the keys if the
+        ///     version in the system is greater than this.
+        /// </summary>
+        [JsonPropertyName("IfChangedFromDataVersion")]
+        public List<uint> IfChangedFromDataVersion { get; set; }
+        
+        /// <summary>
+        ///     [optional] List of unique keys to load from.
+        /// </summary>
+        [JsonPropertyName("Keys")]
+        public List<string> Keys { get; set; }
+        
+        /// <summary>
+        ///     [optional] Unique PlayFab identifier of the user to load data for. Optional, defaults to yourself if not set. When specified to a
+        ///     PlayFab id of another player, then this will only return public keys for that account.
+        /// </summary>
+        [JsonPropertyName("PlayFabId")]
+        public string PlayFabId { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FGetUserDataResult.cs b/src/Prospect.Server.Api/Models/Client/FGetUserDataResult.cs
new file mode 100644
index 0000000..cd00e9e
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FGetUserDataResult.cs
@@ -0,0 +1,22 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+using Prospect.Server.Api.Models.Client.Data;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FGetUserDataResult
+    {
+        /// <summary>
+        ///     [optional] User specific data for this title.
+        /// </summary>
+        [JsonPropertyName("Data")]
+        public Dictionary<string, FUserDataRecord> Data { get; set; }
+        
+        /// <summary>
+        ///     [optional] Indicates the current version of the data that has been set. This is incremented with every set call for that type of
+        ///     data (read-only, internal, etc). This version can be provided in Get calls to find updated data.
+        /// </summary>
+        [JsonPropertyName("DataVersion")]
+        public uint DataVersion { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FGetUserInventoryRequest.cs b/src/Prospect.Server.Api/Models/Client/FGetUserInventoryRequest.cs
new file mode 100644
index 0000000..de6ea89
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FGetUserInventoryRequest.cs
@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FGetUserInventoryRequest
+    {
+        /// <summary>
+        ///     [optional] The optional custom tags associated with the request (e.g. build number, external trace identifiers, etc.).
+        /// </summary>
+        [JsonPropertyName("CustomTags")]
+        public Dictionary<string, string> CustomTags { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FGetUserInventoryResult.cs b/src/Prospect.Server.Api/Models/Client/FGetUserInventoryResult.cs
new file mode 100644
index 0000000..d2cec94
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FGetUserInventoryResult.cs
@@ -0,0 +1,30 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+using Prospect.Server.Api.Models.Client.Data;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FGetUserInventoryResult
+    {
+        /// <summary>
+        ///     [optional] Array of inventory items belonging to the user.
+        /// </summary>
+        [JsonPropertyName("Inventory")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public List<FItemInstance> Inventory { get; set; }
+        
+        /// <summary>
+        ///     [optional] Array of virtual currency balance(s) belonging to the user.
+        /// </summary>
+        [JsonPropertyName("VirtualCurrency")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public Dictionary<string, int> VirtualCurrency { get; set; }
+        
+        /// <summary>
+        ///     [optional] Array of virtual currency balance(s) belonging to the user.
+        /// </summary>
+        [JsonPropertyName("VirtualCurrencyRechargeTimes")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public Dictionary<string, FVirtualCurrencyRechargeTime> VirtualCurrencyRechargeTimes { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FServerLoginResult.cs b/src/Prospect.Server.Api/Models/Client/FServerLoginResult.cs
new file mode 100644
index 0000000..416bafa
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FServerLoginResult.cs
@@ -0,0 +1,64 @@
+using System;
+using System.Text.Json.Serialization;
+using Prospect.Server.Api.Models.Client.Data;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FServerLoginResult
+    {        
+        /// <summary>
+        ///     [optional] If LoginTitlePlayerAccountEntity flag is set on the login request the title_player_account will also be logged in and
+        ///     returned.
+        /// </summary>
+        [JsonPropertyName("EntityToken")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public FEntityTokenResponse EntityToken { get; set; }
+        
+        /// <summary>
+        ///     [optional] Results for requested info.
+        /// </summary>
+        [JsonPropertyName("InfoResultPayload")]
+        public FGetPlayerCombinedInfoResultPayload InfoResultPayload { get; set; }
+        
+        /// <summary>
+        ///     [optional] The time of this user's previous login. If there was no previous login, then it's DateTime.MinValue
+        /// </summary>
+        [JsonPropertyName("LastLoginTime")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public DateTime? LastLoginTime { get; set; }
+        
+        /// <summary>
+        ///     True if the account was newly created on this login.
+        /// </summary>
+        [JsonPropertyName("NewlyCreated")]
+        public bool NewlyCreated { get; set; }
+        
+        /// <summary>
+        ///     [optional] Player's unique PlayFabId.
+        /// </summary>
+        [JsonPropertyName("PlayFabId")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string PlayFabId { get; set; }
+        
+        /// <summary>
+        ///     [optional] Unique token authorizing the user and game at the server level, for the current session.
+        /// </summary>
+        [JsonPropertyName("SessionTicket")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public string SessionTicket { get; set; }
+        
+        /// <summary>
+        ///     [optional] Settings specific to this user.
+        /// </summary>
+        [JsonPropertyName("SettingsForUser")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public FUserSettings SettingsForUser { get; set; }
+
+        /// <summary>
+        ///     [optional] The experimentation treatments for this user at the time of login.
+        /// </summary>
+        [JsonPropertyName("TreatmentAssignment")]
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+        public FTreatmentAssignment TreatmentAssignment { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FUpdateUserTitleDisplayNameRequest.cs b/src/Prospect.Server.Api/Models/Client/FUpdateUserTitleDisplayNameRequest.cs
new file mode 100644
index 0000000..8fa99f3
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FUpdateUserTitleDisplayNameRequest.cs
@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FUpdateUserTitleDisplayNameRequest
+    {
+        /// <summary>
+        ///     [optional] The optional custom tags associated with the request (e.g. build number, external trace identifiers, etc.).
+        /// </summary>
+        [JsonPropertyName("CustomTags")]
+        public Dictionary<string, string> CustomTags { get; set; }
+        
+        /// <summary>
+        ///     New title display name for the user - must be between 3 and 25 characters.
+        /// </summary>
+        [JsonPropertyName("DisplayName")]
+        public string DisplayName { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Models/Client/FUpdateUserTitleDisplayNameResult.cs b/src/Prospect.Server.Api/Models/Client/FUpdateUserTitleDisplayNameResult.cs
new file mode 100644
index 0000000..3d0f130
--- /dev/null
+++ b/src/Prospect.Server.Api/Models/Client/FUpdateUserTitleDisplayNameResult.cs
@@ -0,0 +1,10 @@
+namespace Prospect.Server.Api.Models.Client
+{
+    public class FUpdateUserTitleDisplayNameResult
+    {
+        /// <summary>
+        ///     [optional] Current title display name for the user (this will be the original display name if the rename attempt failed).
+        /// </summary>
+        public string DisplayName { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Prospect.Server.Api/Program.cs b/src/Prospect.Server.Api/Program.cs
index ce0723e..b542c8a 100644
--- a/src/Prospect.Server.Api/Program.cs
+++ b/src/Prospect.Server.Api/Program.cs
@@ -11,6 +11,7 @@ namespace Prospect.Server.Api
         public static int Main(string[] args)
         {
             Log.Logger = new LoggerConfiguration()
+                .MinimumLevel.Debug()
                 .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
                 .MinimumLevel.Override("Microsoft.AspNetCore", LogEventLevel.Warning)
                 .Enrich.FromLogContext()
diff --git a/src/Prospect.Server.Api/Properties/launchSettings.json b/src/Prospect.Server.Api/Properties/launchSettings.json
index e4c9f57..3a338b1 100644
--- a/src/Prospect.Server.Api/Properties/launchSettings.json
+++ b/src/Prospect.Server.Api/Properties/launchSettings.json
@@ -4,7 +4,7 @@
       "commandName": "Project",
       "dotnetRunMessages": "true",
       "launchBrowser": false,
-      "applicationUrl": "http://localhost:8888",
+      "applicationUrl": "http://localhost:5000",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }
diff --git a/src/Prospect.Server.Api/Startup.cs b/src/Prospect.Server.Api/Startup.cs
index de03832..7cee2ae 100644
--- a/src/Prospect.Server.Api/Startup.cs
+++ b/src/Prospect.Server.Api/Startup.cs
@@ -2,6 +2,7 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
+using Prospect.Server.Api.Middleware;
 using Serilog;
 
 namespace Prospect.Server.Api
@@ -21,9 +22,8 @@ namespace Prospect.Server.Api
             }
             
             app.UseSerilogRequestLogging();
-            
+            app.UseMiddleware<RequestLoggerMiddleware>();
             app.UseRouting();
-
             app.UseEndpoints(endpoints =>
             {
                 endpoints.MapControllers();