net
108 articles tagged “net”.
Forex.com API REST & Lightstreamer
The next sgcWebSockets release — version 2026.5.0 — adds native support for the Forex.com / StoneX / CityIndex Trading API: REST order management plus real-time Lightstreamer streaming, all delivered...
sgcWebSockets 2026.4
Rad Studio [+] : Added Support for Rad Studio 13.1: the new platform WinARM64EC is supported. [+] : New TsgcWSFirewall component: full-featured firewall for WebSocket servers with IP blacklist/whitel...
Gemini API Delphi Client
Google Gemini is one of the most powerful multimodal AI model families available today, excelling at text generation, image understanding, structured outputs, and function calling across a wide range...
Faster WebSocket Compression
WebSocket compression is essential for reducing bandwidth and improving responsiveness, especially when transmitting repetitive data like JSON payloads. The permessage-deflate extension compresses ev...
OAuth2 dPoP Delphi
OAuth 2.0 access tokens are the keys to your API kingdom — and if someone steals one, they can use it from anywhere. DPoP (Demonstrating Proof of Possession), defined in RFC 9449, solves this by cryp...
Firewall for sgcWebSockets Servers
Security is no longer optional. Every WebSocket server exposed to the internet is a target for brute force attacks, injection attempts, connection flooding, and automated abuse. Defending against the...
SChannel Indy Server Delphi
For years, Delphi developers deploying TLS-enabled servers on Windows have faced the same challenge: bundling the correct OpenSSL libraries with their application. Version mismatches, missing DLLs at...
Anthropic API Delphi
Integrate Anthropic Claude API in Your Delphi Applications sgcWebSockets delivers a production-ready Delphi component for the full Anthropic Claude API — from text generation and vision to tool use,...
AMQP 1 Client Delphi Update
The AMQP 1.0 protocol implementation in sgcWebSockets has undergone a comprehensive review against the OASIS AMQP 1.0 specification. This article documents the 30 fixes applied across 8 source files,...
AMQP 0.9.1 Delphi Client Update
The AMQP 0-9-1 implementation in sgcWebSockets has received a comprehensive update: 11 bug fixes covering critical parameter ordering, type mismatches, thread safety, and data loss issues, plus 6 new...
New Binance API Methods in sgcWebSockets
The sgcWebSockets library continues to expand its Binance integration with a significant batch of new methods covering the Spot REST API, Futures REST API, and WebSocket streams. This article provide...
OpenAI Delphi Client Update
sgcWebSockets 2026.4.0 introduces a major expansion of the OpenAI API integration, bringing full support for the new Responses API (the official replacement for the deprecated Assistants API), Audio...
sgcWebSockets 2025.10
Rad Studio [+] : New Component TsgcWSAPIClient_MCP implements the MCP Cilent specification. [+] : New Demo MCP Client showing the main features of the MCP Client, can be found in the folder "Demos\15...
Building Crypto Apps with the Binance Component
The TsgcWSAPI_Binance component was designed to let Delphi teams ship Binance-enabled experiences fast: from launching customer-facing trading desks to embedding market data widgets inside your finan...
Telegram Delphi Client
The sgcTelegram component family blends the power of the official Telegram Database Library with the rapid productivity of Delphi. This article describes how to configure and embed the component in y...
Whatsapp Delphi Component
The sgcWebSockets WhatsApp component empowers Delphi teams to deliver instant, personalized conversations at scale. Whether you build CRM integrations, help-desk portals or transactional notification...
Telegram Updated
The Telegram Library has been updated to the version 1.8.54 for the following Rad Studio Personalities:Win32Win64Android64iOS64OSX64OSXARM64Linux64Now the Android64 version is built with a page size...
sgcWebSockets Authorizations
The sgcWebSockets library supports multiple authentication methods to secure WebSocket communication in Delphi and C++Builder applications. Since the WebSocket protocol itself doesn't define an authe...
Using WebSocket Client in .NET
TsgcWebSocketClient is the .NET wrapper around the sgcWebSockets runtime client. It inherits all core WebSocket capabilities from TsgcWebSocketClient_base, giving .NET applications a component-style...
sgcWebSockets 2025.7
Rad Studio [+] : Improved WebAuthn: added support for PS256, PS384 and PS512 algorithms. [+] : Improved WebAuthn: new property WebAuthnOptions.MDS to configure the Fido Metadata Service. [+] : Improv...
sgcWebSockets 2025.6
Rad Studio [+] : Improved OpenAI Assistant: new event OnFunctionCall which allows to interface OpenAI models with your code, database, applications... [+] : Updated the OpenAI Assistant Demo with a n...
sgcWebSockets 2025.5
Rad Studio [+] : Improved WebAuthn Server: new events to handle better the Options request/response for the Registration and Authentication flows. - OnWebAuthnRegistrationOptionsRequest: allows to ca...
sgcWebSockets 2025.4
Rad Studio [+] : New WebAuthn Server Component: Implements the WebAuthn Server Specification, a web standard for secure, passwordless authentication. Currently in BETA. [+] : New WebAuthn Demo: Demon...
sgcWebSockets 2025.3
Rad Studio [+] : Added Support for Rad Studio 12.3 [+] : Improved Setup, a new option "Build Rad Studio IDE Win64" allows to install the package for the 64-bit IDE, by default is disabled. [+] : Impr...
sgcWebSockets 2024.10
Rad Studio [+] : Improved OpenAI Assistant, now allows to upload files and ask questions about the content of these files. [+] : Improved OpenAI Assistant Demo, a new option has been added to upload...
OpenSSL 3 Legacy support
OpenSSL 3.0 moved several deprecated or insecure algorithms into an internal library module called legacy provider. It is not loaded by default, so apps (or their language runtimes) that use OpenSSL...
sgcWebSockets 2024.5
Rad Studio [+] : Improved Binance API Client, new place order functions: PlaceMarketQuoteOrder, PlaceStopTrailingOrder, PlaceTakeProfitOrder, PlaceTakeProfitTrailingOrder and PlaceLimitMakerOrder. [+...
Delphi PKCE OAuth2
From sgcWebSockets 2024.5.0 PKCE, which stands for "Proof of Key Code Exchange" is an extension of the OAuth 2.0 protocol that helps prevent code interception attacks.PKCE is supported on OAuth2 Serv...
sgcWebSockets 2024.4
Rad Studio [+] : Improved Binance API Client, the convert endpoints have been added to the REST_API class. [+] : Added the property Options.Software to customize the Server HTTP Header value. [+] : N...
sgcWebSockets 2024.3.0
Rad Studio [+] : Updated the OpenSSL 1.1.1 libraries to the version 1.1.1w. This is the latest release for the Api 1.1.1. [+] : Updated the OpenSSL 3.0.0 libraries to the version 3.0.13. [+] : Update...
Updated Telegram Libraries for Delphi, CBuilder & .NET
sgcWebSockets supports Telegram TDLib, so you can build your own Telegram Client for any Delphi personality:Windows 32Windows 64Mac OSXMac OSXARM64iOSAndroidLinux64 The Telegram libraries have been u...
OpenSSL 1.1 and 3.*
While the openSSL libraries 1.0 and 1.1 are not receiving any more updates, users should consider to use the latest openSSL 3.0 or 3.1 APIs. Find below the differences between 3.0 and 3.1:OpenSSL 3.0...
sgcWebSockets 2024.2
Rad Studio [+] : New Component TsgcWSPClient_AMQP1, implements AMQP 1.0.0 protocol. [+] : - Authentication: anonymous or SASLPlain [+] : - Plain TCP / TLS. [+] : - Create / Close Sessions. [+] : - Cr...
HTTP/2 Server Threads
From sgcWebSockets 2024.2.0 the HTTP/2 server has been improved when receiving HTTP/2 requests. Now, by default, when the server receives a new HTTP/2 request, this is queued and dispatched by one of...
sgcWebSockets 2024.1
Rad Studio [+] : Added support for Lazarus 3.0 [+] : Improved Bybit API Client, the client has been upgraded to V5 API. [+] : Improved Demo "05.Crypto\01.CryptoAPI", it has been updated to show how t...
sgcWebSockets 2023.8
Rad Studio [+] : Added support for Rad Studio 12 Athens. [+] : Updated the Indy version to the latest. [+] : New Client API: CEX PLUS: cryptocurrency exchange and trading platform. Implement WebSocke...
sgcWebSockets 2023.7
Rad Studio [+] : Improved the Presence Server Protocol, new "Broadcast" method which allows to send a message to all connected clients using this protocol or to clients subscribed to a specific chann...
sgcWebSockets 2023.6
Rad Studio [+] : New Pinecone API Client, it's a vector database which provides long-term memory for AI using embeddings from AI models. [+] : New Demo showing the main features of Pinecone API, it's...
sgcWebSockets 2023.3
Rad Studio [+] : Added Support for OpenAI API, which allows to interact with models like gpt-3.5-turbo, speech to text, translations, Image AI generation and much more. [+] : New Demos which show how...
sgcWebSockets 2023.2
Rad Studio [+] : Added Support for Rad Studio 11.3. [+] : New OpenAPI Pascal Parser, imports any openAPI 3.0, Swagger 1.0 or 2.0 specification and creates a pascal interface file. [+] : Improved HTTP...
sgcWebSockets 2023.1
Rad Studio [+] : Updated Telegram libraries to version 1.8.9. [+] : Improved Telegram Client, when there is an error while loading the library on MacOS, now the error message with the reason is caugh...
Updated Telegram Libraries for Delphi, CBuilder & .NET
sgcWebSockets supports Telegram TDLib, so you can build your own Telegram Client for any Delphi personality:Windows 32Windows 64Mac OSXMac OSXARM64iOSAndroidLinux64 The Telegram libraries have been u...
sgcWebSockets 2022.10
Rad Studio [+] : New Client API: Bybit: cryptocurrency exchange and trading platform. Implement WebSocket protocol for: Spot, Inverse Perpetual, USDT Perpetual and Inverse Futures. [+] : Improved Dem...
sgcWebSockets 2022.9
Rad Studio [+] : Added support for EPOLL on Linux Indy Servers (Websocket and HTTPs Servers). The property IOHandlerOptions.IOHandlerType has a new value called iohEPOLL. [+] : New Property "IOHandle...
Indy Servers - IOCP Windows (2 / 3)
From sgcWebSockets 2022.9.0 the Indy Server IOCP IOHandler has been rewritten from scratch and performance improved. The IOCP IOHandler is only available on sgcWebSockets Enterprise Package.Using IOC...
Indy Servers - Thread Model (1 / 3)
Indy Servers use threads to handle the client connections, every time a new client connects to the server, a new thread is created and this thread handles the connection, so if you have 100 connectio...
OpenSSL Libraries Updated
The openSSL libraries have been updated to the latest version:- OpenSSL 1.1.1s- OpenSSL 3.0.7 (fixes critical vulnerability from version 3.0.0 to 3.0.6)
OpenSSL 3.0.7 Fixes Critical Vulnerability
OpenSSL has released a new version, 3.0.7 that fixes a Critical Vulnerability from openSSL versions 3.0.0 to 3.0.6. Registered users can download the latest openSSL version from the private account.T...
WinHTTP Security Error 12175
After the Windows Update KB5018410 (10 October 2022) TLS 1.0 and TLS 1.1 were not supported anymore, but this seems has affected to TLS 1.2 protocol, so when using WinHTTP to connect using TLS 1.2, t...
sgcWebSockets 2022.8
Rad Studio Here is the comprehensive list of new features and bug fixes included in this version:[+] : Added support for new iOS Simulator for ARM64 (Rad Studio 11.2). [+] : Added support for DTLS ov...
sgcWebSockets 2022.7
Rad Studio Here is the comprehensive list of new features and bug fixes included in this version:[+] : New Client Component TsgcWSAPI_XTB. FX and CFD trading, providing access to over +2000 financial...
WhatsApp API Send Local Files
From sgcWebSockets 2022.7.0, now you can upload local files (like pdf, videos, audios...) to WhatsApp Servers and send a message to your users. Previously to this improvement, you can only send files...
sgcWebSockets 2022.6
Rad Studio Here is the comprehensive list of new features and bug fixes included in this version:[+] : New Client Component TsgcWSAPI_OKX. OKX, formerly known as OKEx, is one of the largest crypto sp...
.NET WhatsApp Cloud API
From sgcWebSockets 2022.6.0 WhatsApp Cloud API is supported for .NET.Send and receive messages using a cloud-hosted version of the WhatsApp Business Platform. The Cloud API allows you to implement Wh...
sgcWebSockets 2022.4.0
Enter your text here ... Rad Studio Here is the comprehensive list of new features and bug fixes included in this version:[+] : ZLib has been updated to 1.2.12, includes the latest security fix (*onl...
sgcWebSockets 2022.3.0
Rad Studio Here is the comprehensive list of new features and bug fixes included in this version:[+] : New sgcWebSockets Package Installer, install and register sgcWebSockets Library. [+] : New IDE A...
Telegram Sponsored Messages
From sgcWebSockets 2022.3.0, Sponsored Messages are supported. Sponsored Messages requires Telegram 1.8.0+, so the Telegram libraries have been updated to support this feature.Sponsored messages on T...
sgcWebSockets 2022.2.0
Rad Studio Here is the comprehensive list of new features and bug fixes included in this version:[+] : Improved Amazon AWS IoT Client, SignatureV4 has a new property "OpenSSL_Options" which allows to...
sgcWebSockets 2022.1.0
Rad Studio Here is the comprehensive list of new features and bug fixes included in this version:[+] : New Component TsgcWSPClient_AMQP, implements AMQP 0.9.1 protocol. [+] : New Demo AMQP which show...
Binance.us API Delphi and .NET
From sgcWebSockets 2022.1, the Binance.us Servers are supported by our Binance API Client. The following APIs are supported:WebSocket streams: allows to subscribe to some methods and get data in real...
Telegram TDLib error: UPDATE_APP_TO_LOGIN
If you get the error code 406 "UPDATE_APP_TO_LOGIN", means that the TDLib version is outdated and must be updated to latest 1.7.9 version, the reason is that Telegram has migrate to 64-Bit identifier...
Telegram Request Phone Number or Location
From sgcWebSockets 2022.1 the Telegram Client component is able to request the user the Phone Number or the location when has login as a bot.Find below an example code in Delphi, CBuilder and .NET De...
sgcWebSockets 4.5.4
Rad Studio Here is the comprehensive list of new features and bug fixes included in sgcWebSockets 4.5.4: [+] : Improved TLSOptions.Version property, now if the value is tlsUndefined (the default), th...
sgcWebSockets .NET Community nuget package
sgcWebSockets .NET has a new edition called sgcWebSockets .NET Community Edition which is free for non-commercial applications.The package can be downloaded from nuget.org from the following linkhttp...
sgcWebSockets .NET MacOS 64
From sgcWebSockets .NET 4.5.4, MacOS 64 bits is supported, so now you can compile Visual Studio Mac Applications for Mac OS 64 bits.The components supported by MacOS are the same that for Windows, so...
MacOS Monterey error loading openSSL libraries
After upgrading to MacOS Monterey, you may experience an error trying to load the openSSL libraries.Invalid dylib load. Clients should not load the unversioned libcrypto dylib as it does not have a s...
sgcWebSockets 4.5.3
Rad Studio Here is the comprehensive list of new features and bug fixes included in sgcWebSockets 4.5.3: [+] : Added support for OpenSSL 3.0.0 [+] : New Component TsgcWSAPIServer_RTCMultiConnection,...
OpenSSL 3.0 Indy Delphi and .NET
From sgcWebSockets 4.5.3, the openSSL 3.0 libraries are supported for the following compilers:Delphi 7 - Rad Studio 11Windows 32/64OSX 64Android 32/64iOS 64Linux 64.NETWindows 32/64 OpenSSL 3.0 OpenS...
RTCMultiConnection Delphi Server API
From sgcWebSockets 4.5.3, RTCMultiConnection is supported. RTCMultiConnection is a WebRTC JavaScript library for peer-to-peer applications (screen sharing, audio/video conferencing, file sharing, med...
DevExtreme Datagrid WebSocket Protocol
DevExtreme Data Grid, from DevExpress, it's a powerful Data Grid for Javascript. One of the features it's partial updates which allows to update a record of a grid without updating the full page. Usu...
Telegram Libraries Updated
sgcWebSockets supports Telegram TDLib, so you can build your own Telegram Client for any Delphi personality:Windows 32Windows 64Mac OSXiOSAndroidLinux64The Telegram libraries have been updated to the...
SChannel Cipher List and Connection Info
From sgcWebSockets 4.5.1 SChannel has been improved with 2 new features:1. There is a new property in TLSOptions.SChannel_Options called CipherList where you can set which Ciphers will be used.2. The...
Telegram Get Members
Telegram API allows to get information about members of a SuperGroup. Use the method GetSuperGroupMembers to get information about members or banned users in a supergroup or channel. Can be used only...
TIME_WAIT TCP Connections
When a client initiates a disconnection from server, there is an exchange between client and server to inform about the state of disconnection. When the process is finished, the client socket connect...
OAuth2 Client Credentials
OAuth2 Client Component now supports Client Credentials as grant type, this type of grant is commonly used for server-to-server interactions that must run in the background, without immediate interac...
HTTP Post Big Files
sgcWebSockets Servers allow to Post Big Files without affecting the server memory. When a HTTP client sends a multipart/form-data stream, the stream is saved by server in memory. When the files are b...
openSSL 1.1.1k
The latest openSSL libraries have been compiled and updated for sgcWebSockets users with an active license, the following libraries are available:1. Windows322. Windows643. OSX644. Android645. iOS64R...
sgcWebSockets 4.4.8
Here is the comprehensive list of new features and bug fixes included in sgcWebSockets 4.4.8:[+] : New Component TsgcHTTP_JWT_Client, allows to encode and sign JWT Tokens as Authentication Bearers in...
WebSocket Send File .NET
From sgcWebSockets 4.4.8, WebSocket Protocol Files is supported by sgcWebSockets .NET Library.This protocol allows sending files using binary WebSocket transport. It can handle big files with a low m...
Kraken Futures API
From sgcWebSockets 4.4.8 Kraken Futures API is supportedhttps://futures.kraken.com/The following APIs are supported:WebSockets Public API: connects to a public WebSocket server.WebSockets Private API...
OpenSSL Perfect Forward Secrecy
From sgcWebSockets 4.4.8 there are small modifications in library to improve security of connections. One of them is Perfect Forward SecrecyWhen you use the RSA key exchange mechanism, it creates a l...
WebSocket Masked Messages
From sgcWebSockets 4.4.8 the Log of websocket messages has been improved. Till now, the messages were saved as was sent/received by socket, this means that when a websocket message was sent by websoc...
sgcWebSockets 4.4.7
Here is the comprehensive list of new features and bug fixes included in sgcWebSockets 4.4.7:[+] : New Client Component TsgcWSAPI_Coinbase, Coinbase is a platform that allows to buy, sell and store c...
SChannel Certificates
From sgcWebSockets 4.4.7 the use of Certificates using SChannel as crypto library is supported.The SChannel implementation supports 2 types of certificate authentication:1. Using a PFX certificate2....
Telegram Bot Chat not found
When you log as bot, the GetChats method cannot be used, so you don't get All available chats. If it's the first time you login as Bot and you try to send a message to a known Chat, you will get this...
Telegram Send Message Bold, Italic...
Telegram client has been improved with a new method, SendRichTextMessages, which supports the use of styles like: bold, italic, underline, strike and code.The use is very simple, if you want send a t...
AWS Cognito and OAuth2
sgcWebSockets library supports OAuth2 Authentication in Server and Client components, next version will include a new feature required by AWS Cognito service, when you try to authenticate using OAuth...
HTTP/2 Alternate Service
The Alt-Svc HTTP header is used to inform the clients that the same resource can be reached from another service or protocol, this is useful if you want inform the HTTP clients that your server suppo...
WebSocket Client Before Connect and Before WatchDog
WebSocket Client can be customized with some of the events available. There are 2 new events added to the latest version:OnBeforeConnect: this event is called just before the client tries to connect...
sgcWebSockets 4.4.6
Here is the comprehensive list of new features and bug fixes included in sgcWebSockets 4.4.6:[+] : New Event OnBeforeForwardHTTP on Server Components, allows to forward an HTTP request to another ser...
HTTP/2 Conformance Tests
sgcWebSockets supports HTTP/2 protocol on Server and Client components, implementation is made in 100% pure Delphi code without using any external library. We have tested our HTTP/2 implementation us...
OAuth2 Customize Sign-In HTML
When an OAuth2 client do a request to get a new Access Token, a Web-Page is shown in a web-browser to Allow this connection and login with an User and Password.The HTML page is included by default in...
OAuth2 Server Allow none authenticated requests
By default, when OAuth2 is enabled on Server Side, all the HTTP Requests require Authentication using Bearer Tokens.If you want allow some URLs to be accessed without the need of use a Bearer Token,...
OAuth2 Server Register Apps
Before a new OAuth2 is requested by a client, the App must be registered in the server.Register a new App requires the following information: App Name: is the name of the Application. Example: MyApp...
OAuth2 Server Endpoints
By default, the OAuth2 Server uses the following Endpoints: Authorization: /sgc/oauth2/auth Token: /sgc/oauth2/tokenWhich means that if your server listens on IP 80.54.41.30 and port 8443, the full O...
OAuth2 Server Authorization
From sgcWebSockets 4.4.5 OAuth2 protocol is supported on Server Components.OAuth2 allows third-party applications to receive a limited access to an HTTP service which is either on behalf of a resourc...
WatchDog Monitor Server
From sgcWebSockets 4.4.4 a new property Monitor has been added to WatchDog feature, WatchDog.Monitor allows to verify if new clients can connect to server, this is done by an internal client that tri...
Telegram Client and Proxies
From sgcWebSockets 4.4.4, the Telegram Client supports Proxy connections. Telegram Client can be configured to make of use of a proxy. Currently, Telegram supports 3 types of proxies:1. HTTP2. MTProt...
MQTT Publish Message and Wait Response
From sgcWebSockets 4.4.4 the MQTT client has a new method called PublishAndWait. Till now, when a client publishes a message using QoS levels 1 or 2, the only way to know if the message was processed...
HTTP/2 Server Test Performance
From sgcWebSockets 4.4.3, HTTP/2 is initially supported and new features will be added on next versions. In a prior entry blog we compared the performance between HTTP 1.1 and HTTP/2 protocols, to do...
HTTP/2 Initial Server Support
From sgcWebSockets 4.4.3 HTTP/2 protocol is initially supported (it's still on beta) from TsgcWebSocketHTTPServer. Fast HTTP.SYS based server will receive support for HTTP/2 on next versions.By defau...
sgcWebSockets 4.4.1
Changes included in sgcWebSockets 4.4.1[+] : Improved Telegram API Component, added support for Android. [+] : New property "DatabaseDirectory" in Telegram Client. Allows to set the directory where i...
TCP Half-Open Connections
Once the connection has been established, if no peer sends any data, then no packets are sent over the net. TCP is an idle protocol, so it assumes that the connection is active. Disconnection reasons...
SignalR Server and Client C#
sgcWebSockets supports SignalR and SignalRCore protocols, now we will see an example of how connect to a SignalR Server using a c# sample from CodeProject webpage, you can access to article using the...
Could not load SSL library
Some libraries, like Indy, use openssl to connect to secure servers using TLS. As some components from sgcWebSockets package are based on Indy library, make use of openssl libraries and sometimes you...
WebSocket Upload File Demo
This is a demo which shows how upload a file to a websocket server. Follow the next steps:Select a file which will be sent to server.Then press connect. If connection is successful a message will sho...
Obsolete Connection String using RSA
sgcWebSockets library allows to run Secure WebSocket Servers using openSSL libraries, if you start a new secure server and try to connect with a web browser like chrome, will run fine and shows a gre...
Indy supports ALPN (Application Layer Protocol Negotiation)
ALPN or Application Layer Protocol Name is a TLS extension that includes the protocol negotiation within the exchange of hello messages. ALPN is able to negotiate which protocol should be handled ove...