Delphi framework for multi-tier REST/JSON HTTP/HTTPS application server development and ORM remoting.


v4.2 (December 26, 2018)

Version history

TMS XData can be simultaneously used on these frameworks:

TMS XData can be simultaneously used on these operating systems/browsers:

TMS XData can be simultaneously used on these IDE's:


Feature overview

  • Server based on REST/JSON architecture style
  • Easily accessible from different client platforms like .NET, Java, JavaScript, since it's REST/JSON based
  • Uses standard POST, GET, PUT and DELETE HTTP methods for data request and data modification operations
  • Partial update of objects (PATCH)
  • Full-featured query mechanism
  • Multi-Model design makes it easy to create multiple servers with different mapping, types and service operations
  • Service Operations allow adding custom business logic to your server using interfaces and methods
  • Well-defined JSON representation of resources including entities, associations, streams and proxies
  • Support for streams (blobs)
  • Several databases supported in back end: SQL Server, MySQL, PostgreSQL, Oracle, Firebird, etc.. (through TMS Aurelius)
  • Design based on standard OData protocol
Based on TMS Sparkle HTTP/HTPS server architecture, which provides:
  • HTTP(s) server based on Windows http.sys stack
  • Support for HTTP Secure (HTTPS)
  • Kernel-mode caching and kernel-mode request queuing (less overhead in context switching)
  • Multiple applications/process can share (respond) the same port (at different addresses)
  • Secure Sockets Layer (SSL) support in kernel-mode

Feature details

TMS XData is a full-featured Delphi framework that allows you to create HTTP/HTTPS servers that exposes TMS Aurelius objects through REST/JSON.

Example of an Aurelius class mapped:
  [Entity, Automapping]
  TCustomer = class
  strict private
    FId: integer;
    FName: string;
    FTitle: string;
    FBirthday: TDateTime;
    FCountry: TCountry;
    property Id: Integer read FId write FId;
    property Name: string read FName write FName;
    property Title: string read FTitle write FTitle;
    property Birthday: TDateTime read FDateTime write FDateTime;
    property Country: TCountry read FCountry write FCountry;
XData enables access via a simple HTTP GET:
GET /tms/xdata/Customer(3) HTTP/1.1
Host: server:2001
Example JSON representation of the customer object returned in the body of HTTP response:
  "$id": 1,
  "@xdata.type": "XData.Default.Customer",
  "Id": 3,
  "Name": "Maria Anders",
  "Title": "Sales Representative",
  "Birthday": "1980-05-20",
  "Country": null
Use a HTTP POST to create new objects, HTTP DELETE to remove objects, HTTP PUT or HTTP PATCH to update objects.

Example: Change the value of Title property of the customer resource:
PATCH /tms/xdata/Customer(1) HTTP/1.1
Host: server:2001
  "Title": "Marketing Manager" 
Easily perform queries on existing objects.

Example of retrieving customers with country name equal to "USA", ordered by customer's name:
GET /tms/xdata/Customer?$filter=Country/Name eq 'USA'&$orderby=Name&$top=10 HTTP/1.1
Host: server:2001
Server will return with a JSON array of objects containing all the filtered objects.

Query paging built-in to restrict the number of objects returned in each request.

Sample source Aurelius integrated full server-side logic using methods


BTW I am VERY happy with XDATA in a project I am developing at the moment. Great way to develop distributed applications.

Roland Kossow, via email



for Delphi XE2, XE3, XE4, XE5, XE6, XE7, XE8, 10 Seattle, 10.1 Berlin, 10.2 Tokyo (Prof/Enterprise/Architect)

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