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README.md
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README.md
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# TDLib
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This repository contains the code of the Telegram Database library (`TDLib`).
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TDLib (Telegram Database library) is a cross-platform library for building [Telegram](https://telegram.org) clients. It can be easily used from almost any programming language.
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## Table of Content
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- [About](#about)
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## Table of Contents
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- [Features](#features)
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- [License](#license)
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- [Examples and documentation](#usage)
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- [Dependencies](#dependencies)
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- [Build with cmake](#build-cmake)
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- [Using `TDLib` in CMake C++ projects](#using-cmake)
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- [Using `TDLib` with other programming languages](#using-json)
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- [Building](#building)
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- [Installing dependencies](#installing-dependencies)
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- [Usage](#usage)
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<a name="about"></a>
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## About
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`TDLib` is a cross-platform, fully functional Telegram client.
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- [Using in CMake C++ projects](#using-cxx)
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- [Using in Java projects](#using-java)
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- [Using with other programming languages](#using-json)
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- [License](#license)
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<a name="features"></a>
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## Features
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@ -26,73 +21,42 @@ This repository contains the code of the Telegram Database library (`TDLib`).
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* **Cross-platform**: `TDLib` can be used on Android, iOS, Windows, macOS, Linux, Windows Phone, WebAssembly, watchOS, tvOS, Tizen, Cygwin. It should also work on other *nix systems with or without minimal effort.
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* **Multilanguage**: `TDLib` can be easily used with any programming language that is able to execute C functions. Additionally it already has native bindings to Java (using JNI) and C# (using C++/CLI).
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* **Easy to use**: `TDLib` takes care of all network implementation details, encryption and local data storage.
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* **High-performance**: in the Telegram Bot API, each `TDLib` instance handles more than 18000 active bots simultaneously.
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* **High-performance**: in the [Telegram Bot API](https://core.telegram.org/bots/api), each `TDLib` instance handles more than 18000 active bots simultaneously.
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* **Well-documented**: all `TDLib` API methods and public interfaces are fully documented.
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* **Consistent**: `TDLib` guarantees that all updates will be delivered in the right order.
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* **Reliable**: `TDLib` remains stable on slow and unstable Internet connections.
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* **Secure**: all local data is encrypted using a user-provided encryption key.
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* **Fully-asynchronous**: requests to `TDLib` don't block each other or anything else, responses will be sent when they are available.
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<a name="license"></a>
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## License
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The Telegram Database library is licensed under the terms of the
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Boost Software License. See [LICENSE](http://www.boost.org/LICENSE_1_0.txt) for more information.
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## Build
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<a name="usage"></a>
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## Examples and documentation
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Take a look at our [examples](https://github.com/tdlib/td/tree/master/example) and [documentation](https://core.telegram.org/tdlib/docs/).
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<a name="dependencies"></a>
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### Dependencies
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## Dependencies
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`TDLib` depends on:
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* C++14 compatible compiler (clang 3.4+, GCC 4.9+, MSVC 19.0+ (Visual Studio 2015+), Intel C++ Compiler 17+)
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* C++14 compatible compiler (Clang 3.4+, GCC 4.9+, MSVC 19.0+ (Visual Studio 2015+), Intel C++ Compiler 17+)
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* OpenSSL
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* zlib
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* gperf
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* CMake (3.0.2+)
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* php (optional, for docs generation)
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* doxygen (optional, for docs generation)
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* gperf (build only)
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* CMake (3.0.2+, build only)
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* PHP (optional, for docs generation)
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* Doxygen (optional, for docs generation)
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<a name="build-cmake"></a>
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### Build with CMake
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<a name="building"></a>
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## Building
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Install all `TDLib` dependencies as described in [Installing dependencies](#installing-dependencies).
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Then enter directory containing `TDLib` sources and compile them using CMake:
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```
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mkdir build
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cd build
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cmake ..
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cmake -DCMAKE_BUILD_TYPE=Release ..
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cmake --build .
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cmake --build . --target install
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```
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<a name="using-cmake"></a>
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### Using `TDLib` in CMake C++ projects
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For C++ projects that use CMake, the best approach is to build `TDLib` as part of your project.
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There are several libraries that you could use in your CMake project:
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* Td::TdJson, Td::TdJsonStatic — dynamic and static version of a json interface. Has a simple C interface, so it can be easily used with any language that supports C bindings.
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* Td::TdStatic — static library with C++ interface.
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* Td::TdCoreStatic — static library with low-level C++ interface intended mostly for internal usage.
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For example, part of your CMakeList.txt may look like this:
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```
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add_subdirectory(td)
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target_link_library(YourLibrary Td::TdJson)
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```
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Or you could install `TDLib` and then reference it in your CMakeLists.txt like this:
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```
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find_package(Td 1.0.5)
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target_link_library(YourLibrary Td::TdJson)
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```
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See [example/cpp/CMakeLists.txt](https://github.com/tdlib/td/tree/master/example/cpp/CMakeLists.txt).
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<a name="using-json"></a>
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### Using `TDLib` from other languages
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`TDLib` provides efficient native C++, Java, and C# (will be released soon) interfaces.
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But for most use cases we suggest to use the JSON interface. It can be easily used with any language that supports C bindinds. See
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[example/python/tdjson_example.py](https://github.com/tdlib/td/tree/master/example/python/tdjson_example.py) for an
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example of such usage.
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<a name="installing-dependencies"></a>
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### Installing dependencies
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@ -102,23 +66,60 @@ example of such usage.
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```
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brew install gperf cmake openssl
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```
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* After that you may need to manually specify path to the installed OpenSSL to CMake, e.g.,
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* Build `TDLib` with CMake as explained in [building](#building). You may need to manually specify path to the installed OpenSSL to CMake, e.g.,
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```
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cmake -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl/ ..
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cmake -DCMAKE_BUILD_TYPE=Release -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl/ ..
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```
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#### Windows
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* Download and install [gperf](https://sourceforge.net/projects/gnuwin32/files/gperf/3.0.1/). Add the path to gperf to the PATH variable.
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* Download and install [gperf](https://sourceforge.net/projects/gnuwin32/files/gperf/3.0.1/). Add the path to gperf to the PATH environment variable.
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* Install [vcpkg](https://github.com/Microsoft/vcpkg#quick-start).
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* Run the following commands:
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```
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C:\src\vcpkg> .\vcpkg install openssl zlib
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```
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* Build `TDLib` with cmake as explained above, but instead of `cmake ..` use `cmake -DCMAKE_TOOLCHAIN_FILE=C:\src\vcpkg\scripts\buildsystems\vcpkg.cmake ..`.
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* Build `TDLib` with CMake as explained in [building](#building), but instead of `cmake -DCMAKE_BUILD_TYPE=Release ..` use
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```cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=C:\src\vcpkg\scripts\buildsystems\vcpkg.cmake ..```.
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#### Linux
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Install all dependencies using your package manager.
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* Install all dependencies using your package manager.
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<a name="usage"></a>
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### `TDLib` usage
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Take a look at our [examples](https://github.com/tdlib/td/tree/master/example) and [documentation](https://core.telegram.org/tdlib/docs/).
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<a name="using-cxx"></a>
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## Using in CMake C++ projects
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For C++ projects that use CMake, the best approach is to build `TDLib` as part of your project or to use a prebuilt installation.
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There are several libraries that you could use in your CMake project:
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* Td::TdJson, Td::TdJsonStatic — dynamic and static version of a json interface. Has a simple C interface, so it can be easily used with any programming language that supports C bindings.
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* Td::TdStatic — static library with C++ interface.
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* Td::TdCoreStatic — static library with low-level C++ interface intended mostly for internal usage.
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For example, part of your CMakeLists.txt may look like this:
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```
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add_subdirectory(td)
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target_link_libraries(YourTarget PRIVATE Td::TdStatic)
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```
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Or you could install `TDLib` and then reference it in your CMakeLists.txt like this:
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```
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find_package(Td 1.0.5 REQUIRED)
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target_link_libraries(YourTarget PRIVATE Td::TdStatic)
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```
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See [example/cpp/CMakeLists.txt](https://github.com/tdlib/td/tree/master/example/cpp/CMakeLists.txt).
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<a name="using-java"></a>
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## Using in Java projects
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TDLib provides native Java interface through JNI.
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See [example/java](https://github.com/tdlib/td/tree/master/example/java) for example of using TDLib from Java and detailed build and usage instructions.
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<a name="using-json"></a>
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## Using from other programming languages
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`TDLib` provides efficient native C++, Java, and C# (will be released soon) interfaces.
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But for most use cases we suggest to use the JSON interface. It can be easily used with any language that supports C bindinds. See
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[example/python/tdjson_example.py](https://github.com/tdlib/td/tree/master/example/python/tdjson_example.py) for an
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example of such usage.
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<a name="license"></a>
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## License
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The TDLib is licensed under the terms of the Boost Software License. See [LICENSE_1_0.txt](http://www.boost.org/LICENSE_1_0.txt) for more information.
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