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ReductStore Client SDK for C++

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The ReductStore Client SDK for C++ is an open source client for ReductStore written in C++20. It allows developers to easily interact with the database from their C++ applications.


  • Written in C++20
  • Support ReductStore HTTP API v1.9
  • Support HTTP and HTTPS protocols
  • Exception free
  • Support Linux AMD64


Here is a simple example of how to use the ReductStore Client SDK for C++ to create a bucket, write data to it, and read the data back:

#include <reduct/client.h>

#include <iostream>

using reduct::IBucket;
using reduct::IClient;

int main() {
  auto client = IClient::Build("");
  // Create a bucket
  auto [bucket, create_err] = client->GetOrCreateBucket("bucket");
  if (create_err) {
    std::cerr << "Error: " << create_err;
    return -1;

  // Write some data
  auto ts = IBucket::Time::clock::now();
  [[maybe_unused]] auto write_err = bucket->Write("entry-1", ts, [](auto rec) { rec->WriteAll("some_data1"); });

  // Read data via timestamp
  auto read_err = bucket->Read("entry-1", ts, [](auto rec) {
        std::cout << "Read blob: " <<  rec->ReadAll() << std::endl;

  // Walk through the data
  err = bucket->Query("entry-1", std::nullopt, IBucket::Time::clock::now(), {}, [](auto&& record) {
    std::string blob;

    auto read_err = record.Read([&blob](auto chunk) {
      return true;

    if (!read_err) {
      std::cout << "Read blob: " << blob;

    return true;


  • GCC 11.2 or higher (support C++20)
  • CMake 3.18 or higher
  • ZLib
  • OpenSSL 1.1 or 3.0
  • Conan 1.58 (optionally)

To build the library, follow these steps:

git clone
cd reduct-cpp
mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
cmake --build .
sudo cmake --build . --target install

CMake tries to use the conan package manager if it is installed. If it isn't, it downloads all the dependencies by using FetchContent. To use ReductStore SDK you need only to use find_pacakge in your cmake lists: