Hello World

👋 Hello World

Let’s build your first Zuno application using CMake FetchContent. This example shows how to create a minimal HTTP server with no external package manager—just modern C++ and CMake.

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🧱 Project Structure

hello-world/
├── CMakeLists.txt
└── main.cpp

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📄 CMakeLists.txt

cmake_minimum_required(VERSION 3.20)
project(hello_world)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

include(FetchContent)

FetchContent_Declare(
zuno
GIT_REPOSITORY https://github.com/zuno-framework/zuno.git
GIT_TAG        main
)

FetchContent_MakeAvailable(zuno)

add_executable(hello-world main.cpp)
target_link_libraries(hello-world PRIVATE Zuno::Zuno)

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📄 main.cpp

#include <zuno/zuno.hpp>

int main() {
zuno::App app;

app.get("/", [](Request& req, Response& res) {
  res.send("Hello from Zuno!");
});

app.listen(3000);
}

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🚀 Run the App

cmake -B build
cmake --build build
./build/hello-world

You should see:

Zuno server running on http://localhost:3000

Visit http://localhost:3000 in your browser and you’ll see:

Hello from Zuno!

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🧭 What’s Next?

Now that you’ve built your first Zuno app, try:

• Modular Routing
• Middleware Extensions
• TLS & Security

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Zuno + FetchContent = zero friction. Build fast, stay modern.