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https://github.com/libcpr/cpr

C++ Requests: Curl for People, a spiritual port of Python Requests.
https://github.com/libcpr/cpr

c-plus-plus cpp hacktoberfest http libcurl library requests

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C++ Requests: Curl for People, a spiritual port of Python Requests.

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README 

        
# C++ Requests: Curl for People 



[![Documentation](https://img.shields.io/badge/docs-online-informational?style=flat&link=https://docs.libcpr.org/)](https://docs.libcpr.org/)

![CI](https://github.com/libcpr/cpr/workflows/CI/badge.svg)

[![Gitter](https://badges.gitter.im/libcpr/community.svg)](https://gitter.im/libcpr/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)



## Announcements



* This project is being maintained by [Fabian Sauter](https://github.com/com8) and [Kilian Traub](https://github.com/KingKili).

* For quick help, and discussion libcpr also offer a [gitter](https://gitter.im/libcpr/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link) chat.



## Supported Releases

| Release  | Min. C++ Standard | Status | Notes |

|----------|-------------------|--------|-------|

| master   | `cpp17` | ![alt text][preview] | |

| 1.10.x   | `cpp17` | ![alt text][supported] | |

| 1.9.x    | `cpp11` | ![alt text][supported] | Supported until 01.01.2025 |

| <= 1.8.x | `cpp11` | ![alt text][unsupported] | |



[unsupported]: https://img.shields.io/badge/-unsupported-red "unsupported"

[supported]: https://img.shields.io/badge/-supported-green "supported"

[preview]: https://img.shields.io/badge/-preview-orange "preview"



## TLDR



C++ Requests is a simple wrapper around [libcurl](http://curl.haxx.se/libcurl) inspired by the excellent [Python Requests](https://github.com/kennethreitz/requests) project.



Despite its name, libcurl's easy interface is anything but, and making mistakes, misusing it is a common source of error and frustration. Using the more expressive language facilities of `C++17` (or `C++11` in case you use cpr < 1.10.0), this library captures the essence of making network calls into a few concise idioms.



Here's a quick GET request:



```c++

#include 



int main(int argc, char** argv) {

    cpr::Response r = cpr::Get(cpr::Url{"https://api.github.com/repos/whoshuu/cpr/contributors"},

                      cpr::Authentication{"user", "pass", cpr::AuthMode::BASIC},

                      cpr::Parameters{{"anon", "true"}, {"key", "value"}});

    r.status_code;                  // 200

    r.header["content-type"];       // application/json; charset=utf-8

    r.text;                         // JSON text string

    return 0;

}

```



And here's [less functional, more complicated code, without cpr](https://gist.github.com/whoshuu/2dc858b8730079602044).



## Documentation



[![Documentation](https://img.shields.io/badge/docs-online-informational?style=for-the-badge&link=https://docs.libcpr.org/)](https://docs.libcpr.org/)  

You can find the latest documentation [here](https://docs.libcpr.org/). It's a work in progress, but it should give you a better idea of how to use the library than the [tests](https://github.com/libcpr/cpr/tree/master/test) currently do.



## Features



C++ Requests currently supports:



* Custom headers

* Url encoded parameters

* Url encoded POST values

* Multipart form POST upload

* File POST upload

* Basic authentication

* Bearer authentication

* Digest authentication

* NTLM authentication

* Connection and request timeout specification

* Timeout for low speed connection

* Asynchronous requests

* :cookie: support!

* Proxy support

* Callback interfaces

* PUT methods

* DELETE methods

* HEAD methods

* OPTIONS methods

* PATCH methods

* Thread Safe access to [libCurl](https://curl.haxx.se/libcurl/c/threadsafe.html)

* OpenSSL and WinSSL support for HTTPS requests



## Planned



For a quick overview about the planed features, have a look at the next [Milestones](https://github.com/libcpr/cpr/milestones).



## Usage



### CMake



#### fetch_content:

If you already have a CMake project you need to integrate C++ Requests with, the primary way is to use `fetch_content`.

Add the following to your `CMakeLists.txt`.



```cmake

include(FetchContent)

FetchContent_Declare(cpr GIT_REPOSITORY https://github.com/libcpr/cpr.git

                         GIT_TAG 3b15fa82ea74739b574d705fea44959b58142eb8) # Replace with your desired git commit from: https://github.com/libcpr/cpr/releases

FetchContent_MakeAvailable(cpr)

```



This will produce the target `cpr::cpr` which you can link against the typical way:



```cmake

target_link_libraries(your_target_name PRIVATE cpr::cpr)

```



That should do it!

There's no need to handle `libcurl` yourself. All dependencies are taken care of for you.  

All of this can be found in an example [**here**](https://github.com/libcpr/example-cmake-fetch-content).



#### find_package():

If you prefer not to use `fetch_content`, you can download, build, and install the library and then use CMake `find_package()` function to integrate it into a project.



**Note:** this feature is feasible only if CPR_USE_SYSTEM_CURL is set. (see [#645](https://github.com/libcpr/cpr/pull/645))

```Bash

git clone https://github.com/libcpr/cpr.git

cd cpr && mkdir build && cd build

cmake .. -DCPR_USE_SYSTEM_CURL=ON

cmake --build . --parallel

sudo cmake --install .

```

In your `CMakeLists.txt`:

```cmake

find_package(cpr REQUIRED)

add_executable(your_target_name your_target_name.cpp)

target_link_libraries(your_target_name PRIVATE cpr::cpr)

```



#### Tests

`cpr` provides a bunch of tests that can be executed via the following commands.

```Bash

git clone https://github.com/libcpr/cpr.git

cd cpr && mkdir build && cd build

cmake .. -DCPR_BUILD_TESTS=ON # There are other test related options like 'CPR_BUILD_TESTS_SSL' and 'CPR_BUILD_TESTS_PROXY'

cmake --build . --parallel

ctest -VV # -VV is optional since it enables verbose output

```



### Bazel



Please refer to [hedronvision/bazel-make-cc-https-easy](https://github.com/hedronvision/bazel-make-cc-https-easy).



### Packages for Linux Distributions



Alternatively, you may install a package specific to your Linux distribution. Since so few distributions currently have a package for cpr, most users will not be able to run your program with this approach.



Currently, we are aware of packages for the following distributions:



* [Arch Linux (AUR)](https://aur.archlinux.org/packages/cpr)

* [Fedora Linux](https://src.fedoraproject.org/rpms/cpr)



If there's no package for your distribution, try making one! If you do, and it is added to your distribution's repositories, please submit a pull request to add it to the list above. However, please only do this if you plan to actively maintain the package.



### NuGet Package



For Windows, there is also a libcpr NuGet package available. Currently, x86 and x64 builds are supported with release and debug configuration.



The package can be found here: [NuGet.org](https://www.nuget.org/packages/libcpr/)



## Requirements



The only explicit requirements are:



* a `C++17` compatible compiler such as Clang or GCC. The minimum required version of GCC is unknown, so if anyone has trouble building this library with a specific version of GCC, do let us know

* in case you only have a `C++11` compatible compiler available, all versions below cpr 1.9.x are for you. The 1.10.0 release of cpr switches to `C++17` as a requirement.

* If you would like to perform https requests `OpenSSL` and its development libraries are required.



## Building cpr - Using vcpkg



You can download and install cpr using the [vcpkg](https://github.com/Microsoft/vcpkg) dependency manager:

```Bash

git clone https://github.com/Microsoft/vcpkg.git

cd vcpkg

./bootstrap-vcpkg.sh

./vcpkg integrate install

./vcpkg install cpr

```

The `cpr` port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.



## Building cpr - Using Conan



You can download and install `cpr` using the [Conan](https://conan.io/) package manager. Setup your CMakeLists.txt (see [Conan documentation](https://docs.conan.io/en/latest/integrations/build_system.html) on how to use MSBuild, Meson and others).

An example can be found [**here**](https://github.com/libcpr/example-cmake-conan).



The `cpr` package in Conan is kept up to date by Conan contributors. If the version is out of date, please [create an issue or pull request](https://github.com/conan-io/conan-center-index) on the `conan-center-index` repository.