diff --git a/CMakeLists.txt b/CMakeLists.txt
index 719a92e..d04a180 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -200,6 +200,7 @@ if(PRAAS_WITH_TESTING)
   set(TESTS
     #tests/integration/invocation.cpp
     tests/integration/allocation_invocation.cpp
+    tests/integration/state_swap.cpp
   )
   foreach(test ${TESTS})
 
diff --git a/examples/state-cpp/CMakeLists.txt b/examples/state-cpp/CMakeLists.txt
new file mode 100644
index 0000000..34e2ebb
--- /dev/null
+++ b/examples/state-cpp/CMakeLists.txt
@@ -0,0 +1,11 @@
+cmake_minimum_required(VERSION 3.11)
+project(praas-benchmarks)
+
+find_package(runtime)
+
+add_library(state SHARED state.cpp)
+target_link_libraries(state PRIVATE praas::runtime)
+target_link_libraries(state PRIVATE praas::cereal)
+set_target_properties(state PROPERTIES LIBRARY_OUTPUT_DIRECTORY functions)
+set(FUNCTIONS_DIRECTORY ${CMAKE_BINARY_DIR})
+configure_file(functions.json.in functions/functions.json @ONLY)
diff --git a/examples/state-cpp/functions.json.in b/examples/state-cpp/functions.json.in
new file mode 100644
index 0000000..d05dcf2
--- /dev/null
+++ b/examples/state-cpp/functions.json.in
@@ -0,0 +1,26 @@
+{
+  "functions": {
+    "cpp": {
+      "state-put": {
+        "code": {
+          "module": "@FUNCTIONS_DIRECTORY@/libstate.so",
+          "function": "state_put"
+        },
+        "trigger": {
+          "type": "direct",
+          "nargs": 1
+        }
+      },
+      "state-get": {
+        "code": {
+          "module": "@FUNCTIONS_DIRECTORY@/libstate.so",
+          "function": "state_get"
+        },
+        "trigger": {
+          "type": "direct",
+          "nargs": 1
+        }
+      }
+    }
+  }
+}
diff --git a/examples/state-cpp/state.cpp b/examples/state-cpp/state.cpp
new file mode 100644
index 0000000..dea568f
--- /dev/null
+++ b/examples/state-cpp/state.cpp
@@ -0,0 +1,72 @@
+
+#include <praas/process/runtime/context.hpp>
+#include <praas/process/runtime/invocation.hpp>
+
+#include <cereal/cereal.hpp>
+#include <cereal/types/string.hpp>
+
+#include <fstream>
+#include <filesystem>
+#include <ios>
+#include <string>
+
+struct IO {
+  std::string message;
+
+  template<typename Ar>
+  void save(Ar & archive) const
+  {
+    archive(CEREAL_NVP(message));
+  }
+
+  template<typename Ar>
+  void load(Ar & archive)
+  {
+    archive(CEREAL_NVP(message));
+  }
+};
+
+extern "C" int state_put(
+  praas::process::runtime::Invocation invocation, praas::process::runtime::Context& context
+)
+{
+  IO msg;
+  invocation.args[0].deserialize(msg);
+
+  praas::process::runtime::Buffer buf = context.state("STATE_MSG_1");
+
+  auto send_buf = context.get_buffer(1024);
+  send_buf.serialize(msg);
+
+  context.state("STATE_MSG_1", send_buf);
+
+  msg.message = "second_state_msg";
+  send_buf.serialize(msg);
+  context.state("STATE_MSG_2", send_buf);
+
+  msg.message = "42424242";
+  send_buf.serialize(msg);
+  context.state("STATE_MSG_3", send_buf);
+
+  std::filesystem::create_directories("/state/test1/test2/");
+  std::ofstream out{"/state/test1/test2/TEST"};
+  out << "newfiledata";
+  out.close();
+
+  return 0;
+}
+
+extern "C" int state_get(
+  praas::process::runtime::Invocation invocation, praas::process::runtime::Context& context
+)
+{
+  IO key;
+  praas::process::runtime::Buffer buf = context.state("STATE_MSG_1");
+  buf.deserialize(key);
+
+  auto& output_buf = context.get_output_buffer(1024);
+  output_buf.serialize(key);
+  context.set_output_buffer(output_buf);
+
+  return 0;
+}
diff --git a/tests/integration/state_swap.cpp b/tests/integration/state_swap.cpp
new file mode 100644
index 0000000..94d6d7f
--- /dev/null
+++ b/tests/integration/state_swap.cpp
@@ -0,0 +1,93 @@
+
+#include <praas/common/http.hpp>
+#include <praas/control-plane/config.hpp>
+#include <praas/control-plane/server.hpp>
+#include <praas/sdk/praas.hpp>
+
+#include <boost/interprocess/streams/bufferstream.hpp>
+#include <chrono>
+#include <thread>
+
+#include <boost/iostreams/stream.hpp>
+#include <cereal/archives/binary.hpp>
+#include <cereal/types/string.hpp>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+struct Result {
+  std::string msg;
+
+  template <typename Ar>
+  void save(Ar& archive) const
+  {
+    archive(CEREAL_NVP(msg));
+  }
+
+  template <typename Ar>
+  void load(Ar& archive)
+  {
+    archive(CEREAL_NVP(msg));
+  }
+};
+
+class IntegrationLocalInvocation : public ::testing::Test {};
+
+std::string get_output_binary(const char* buffer, size_t size)
+{
+  Result out;
+  boost::iostreams::stream<boost::iostreams::array_source> stream(buffer, size);
+  cereal::BinaryInputArchive archive_in{stream};
+  out.load(archive_in);
+
+  return out.msg;
+}
+
+std::string get_input_binary(Result& msg)
+{
+  std::string result;
+  result.resize(1024);
+
+  boost::interprocess::bufferstream out_stream(reinterpret_cast<char*>(result.data()), 1024);
+  cereal::BinaryOutputArchive archive_out{out_stream};
+  archive_out(msg);
+
+  return result;
+}
+
+TEST_F(IntegrationLocalInvocation, AllocationInvoke)
+{
+  praas::common::http::HTTPClientFactory::initialize(1);
+  {
+    praas::sdk::PraaS praas{fmt::format("http://127.0.0.1:{}", 9000)};
+
+    std::string app_name("test_alloc_invoc");
+    ASSERT_TRUE(
+        praas.create_application(app_name, "spcleth/praas:proc-local") //spcleth/praas-examples:hello-world-cpp")
+    );
+
+    auto proc = praas.create_process(app_name, "alloc_invoc_process", "1", "1024");
+    ASSERT_TRUE(proc.has_value());
+    spdlog::info("Created process");
+
+    ASSERT_TRUE(proc->connect());
+
+    Result msg;
+    msg.msg = "TEST_SWAP";
+    auto res = get_input_binary(msg);
+
+    auto invoc = proc->invoke("state-put", "invocation-id", res.data(), res.size());
+    spdlog::info("Invoked");
+
+    // auto invoc = praas.invoke("test_app", "hello-world", "");
+
+    ASSERT_EQ(invoc.return_code, 0);
+
+    auto swap_res = praas.swap_process(proc.value());
+    ASSERT_TRUE(swap_res.has_value());
+    spdlog::info(swap_res.value());
+
+    ASSERT_TRUE(praas.delete_process(proc.value()));
+
+    ASSERT_TRUE(praas.delete_application(app_name));
+  }
+}