- This project is being maintained by Fabian Sauter and Kilian Traub.
- For quick help, and discussion libcpr also offer a gitter chat.
Release | Min. C++ Standard | Status | Notes |
---|---|---|---|
master | cpp17 |
||
1.10.x | cpp17 |
||
1.9.x | cpp11 |
Supported until 01.01.2025 | |
<= 1.8.x | cpp11 |
C++ Requests is a simple wrapper around libcurl inspired by the excellent Python 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:
#include <cpr/cpr.h>
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.
You can find the latest documentation here. It's a work in progress, but it should give you a better idea of how to use the library than the tests currently do.
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
- 🍪 support!
- Proxy support
- Callback interfaces
- PUT methods
- DELETE methods
- HEAD methods
- OPTIONS methods
- PATCH methods
- Thread Safe access to libCurl
- OpenSSL and WinSSL support for HTTPS requests
For a quick overview about the planed features, have a look at the next Milestones.
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
.
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:
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.
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)
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 .
As an alternative if you want to switch between a static or shared version of cpr use '-DBUILD_SHARED_LIBS=ON/OFF'.
git clone https://github.com/libcpr/cpr.git
cd cpr && mkdir build && cd build
cmake .. -DCPR_USE_SYSTEM_CURL=ON -DBUILD_SHARED_LIBS=OFF
cmake --build . --parallel
sudo cmake --install .
In your CMakeLists.txt
:
find_package(cpr REQUIRED)
add_executable(your_target_name your_target_name.cpp)
target_link_libraries(your_target_name PRIVATE cpr::cpr)
cpr
provides a bunch of tests that can be executed via the following commands.
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
Please refer to hedronvision/bazel-make-cc-https-easy.
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:
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.
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
On macOS you may install cpr via MacPorts.org (arm64, x86_64, powerpc)
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 toC++17
as a requirement. - If you would like to perform https requests
OpenSSL
and its development libraries are required. - If you do not use the build in version of curl but instead use your systems version, make sure you use a version
>= 7.64.0
. Lower versions are not supported. This means you need Debian>= 10
or Ubuntu>= 20.04 LTS
.
You can download and install cpr using the vcpkg dependency manager:
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 on the vcpkg repository.
You can download and install cpr
using the Conan package manager. Setup your CMakeLists.txt (see Conan documentation on how to use MSBuild, Meson and others).
An example can be found here.
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 on the conan-center-index
repository.