MinIO C++ Client SDK for Amazon S3 Compatible Cloud Storage

MinIO C++ SDK is Simple Storage Service (aka S3) client to perform bucket and object operations to any Amazon S3 compatible object storage service.

For a complete list of APIs and examples, please take a look at the MinIO C++ Client API Reference

Build Requirements

• cmake 3.10 or higher.
• vcpkg package manager.
• A working C++ compiler that supports at least C++17.

Installation via vcpkg

MinIO C++ client SDK can be installed via vcpkg package manager:

$ vcpkg install minio-cpp

Typically minio-cpp will be part of dependencies specified in vcpkg.json file:

{
  "$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
  "name": "your-project",
  "version": "0.0.1",
  "dependencies": [
    { "name": "minio-cpp" }
  ]
}

Using minio-cpp with cmake

MinIO C++ cliend SDK can be consumed as a dependency in CMakeLists.txt, the following can be used as an example:

cmake_minimum_required(VERSION 3.10)

project(miniocpp_example LANGUAGES C CXX)

# This will try to find miniocpp package and all its dependencies.
find_package(miniocpp REQUIRED)

# Create an executable called miniocpp-example:
add_executable(miniocpp-example example.cpp)

# Link the executable to miniocpp and all its dependencies:
target_link_libraries(miniocpp-example PRIVATE miniocpp::miniocpp)

# Make sure you are using at least C++17:
target_compile_features(miniocpp-example PUBLIC cxx_std_17)

Note that miniocpp::miniocpp is a cmake imported target, which contains all the instructions necessary to use minio-cpp library from your cmake projet file.

Hacking minio-cpp

In order to run minio-cpp tests and examples, you can do the following assuming VCPKG_ROOT points to a valid vcpkg installation:

$ git clone https://github.com/minio/minio-cpp
$ cd minio-cpp
$ ${VCPKG_ROOT}/vcpkg install
$ cmake . -B build/Debug -DCMAKE_BUILD_TYPE=Debug -DMINIO_CPP_TEST=ON -DCMAKE_TOOLCHAIN_FILE=${VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake
$ cmake --build ./build/Debug

Note that cmake also supports multi-configuration generators. Multi-configuration generators don't use CMAKE_BUILD_TYPE during configure time. For example a Visual Studio project can be setup the following way:

$ git clone https://github.com/minio/minio-cpp
$ cd minio-cpp
$ ${VCPKG_ROOT}/vcpkg install
$ cmake . -B build -DMINIO_CPP_TEST=ON -DCMAKE_TOOLCHAIN_FILE=${VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake
$ cmake --build ./build --config Debug

The examples above assumed that you have vcpkg already installed and you have a VCPKG_ROOT environment variable set. This is common if you use vcpkg to handle dependencies of multiple projects as only a single installation of vcpkg is required in that case. If you don't have vcpkg installed and you only want to use it to test minio-cpp, it's possible to install it locally like this:

$ git clone https://github.com/minio/minio-cpp
$ cd minio-cpp
$ git clone https://github.com/microsoft/vcpkg.git
$ ./vcpkg/bootstrap-vcpkg.sh
$ ./vcpkg/vcpkg install
$ cmake . -B ./build/Debug -DCMAKE_BUILD_TYPE=Debug -DMINIO_CPP_TEST=ON -DCMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake
$ cmake --build ./build/Debug

We recommend the setup with VCPKG_ROOT for development. In that case there is a configure.sh script, that can be used to create both Debug and Release projects:

$ git clone https://github.com/minio/minio-cpp
$ cd minio-cpp
$ ./configure.sh -DMINIO_CPP_TEST=ON

Example:: file-uploader.cc

#include <miniocpp/client.h>

int main(int argc, char* argv[]) {
  // Create S3 base URL.
  minio::s3::BaseUrl base_url("play.min.io");

  // Create credential provider.
  minio::creds::StaticProvider provider(
      "Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG");

  // Create S3 client.
  minio::s3::Client client(base_url, &provider);
  std::string bucket_name = "asiatrip";

  // Check 'asiatrip' bucket exist or not.
  bool exist;
  {
    minio::s3::BucketExistsArgs args;
    args.bucket = bucket_name;

    minio::s3::BucketExistsResponse resp = client.BucketExists(args);
    if (!resp) {
      std::cout << "unable to do bucket existence check; " << resp.Error()
                << std::endl;
      return EXIT_FAILURE;
    }

    exist = resp.exist;
  }

  // Make 'asiatrip' bucket if not exist.
  if (!exist) {
    minio::s3::MakeBucketArgs args;
    args.bucket = bucket_name;

    minio::s3::MakeBucketResponse resp = client.MakeBucket(args);
    if (!resp) {
      std::cout << "unable to create bucket; " << resp.Error() << std::endl;
      return EXIT_FAILURE;
    }
  }

  // Upload '/home/user/Photos/asiaphotos.zip' as object name
  // 'asiaphotos-2015.zip' to bucket 'asiatrip'.
  minio::s3::UploadObjectArgs args;
  args.bucket = bucket_name;
  args.object = "asiaphotos-2015.zip";
  args.filename = "/home/user/Photos/asiaphotos.zip";

  minio::s3::UploadObjectResponse resp = client.UploadObject(args);
  if (!resp) {
    std::cout << "unable to upload object; " << resp.Error() << std::endl;
    return EXIT_FAILURE;
  }

  std::cout << "'/home/user/Photos/asiaphotos.zip' is successfully uploaded as "
            << "object 'asiaphotos-2015.zip' to bucket 'asiatrip'."
            << std::endl;

  return EXIT_SUCCESS;
}

License

This SDK is distributed under the Apache License, Version 2.0, see LICENSE for more information.