DaaS-IoT Python SDK – Developer Technical Manual (Windows)

Version: 1.0
Date: October 2025
Author: Sebyone Srl
License:
Project: DaaS-IoT Python SDK (Windows)

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Table of Contents #

• 1. Introduction
• 2. Architecture
• 3. Directory Structure
• 4. Build & Installation
• 5. Python API
• 6. Usage Example
• 7. CLI Usage
• 8. Contact

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1. Introduction #

This manual documents the DaaS-IoT Python SDK for Windows (MSVC), which provides Python bindings for the native libdaas.lib library using pybind11.
The SDK exposes the full set of core DaaS APIs through the DaasWrapper class and IDaasApiEvent interface.

The SDK uses CMake FetchContent to automatically download and link the LibDaaS package during the build — no headers or libraries are stored in the repository.

2. Architecture #

+---------------------------+
| Python Application        |
+---------------------------+
           |
           v
+---------------------------+
| pydaasiot (pybind11)      |
| - DaasWrapper             |
| - DDO                     |
| - IDaasApiEvent           |
+---------------------------+
           |
           v
+---------------------------+
| libdaas.lib (C++ core)    |
+---------------------------+

3. Directory Structure #

daasiot-python-win/
├── include/                      # C++ wrapper headers
├── src/                          # pybind11 sources
├── examples/                     # Python usage examples
└── CMakeLists.txt                # MSVC build configuration

4. Build & Installation #

Prerequisites #

• Python 3.9+ (x64)
• Visual Studio 2022 (Desktop development with C++)
• pybind11 (pip install pybind11)
• CMake >= 3.20

1) Get MD5 checksum #

https://daasiot.com/releases/libdaas/v-0.20.01/windows/msvc/libdaas-0201-windows-msvc.tar.gz.md5

2) Configure with CMake #

Open x64 Native Tools Command Prompt or Developer PowerShell for VS 2022:

cmake -S . -B build -G "Visual Studio 17 2022" -A x64 `
  -DDAAS_VERSION=0.20.01 `
  -DDAAS_FILETAG=0201 `
  -DDAAS_MD5=<paste_the_md5_here> `
  -DCMAKE_BUILD_TYPE=Release

3) Build #

cmake --build build --config Release -- /m

The resulting .pyd file will be generated in build/Release.

Note: GitHub Actions automatically fetch and verify the SDK during CI builds.

4) Upgrading to a new version #

When a new LibDaaS release is available, update:

• DAAS_VERSION
• DAAS_FILETAG (if changed)
• DAAS_MD5 (copied from the new .md5 file)

No other changes are required.

5. Python API #

DaasWrapper(config: str = None, eventHandler: IDaasApiEvent = None)

Main Methods are identical to the Linux version.

6. Usage Example #

import pydaasiot

class MyHandler(pydaasiot.IDaasApiEvent):
    def __init__(self, node):
        super().__init__()
        self.node = node

    def ddoReceivedEvent(self, payload_size, typeset, din):
        print(f"DDO received from {din}")
        err, ddo = self.node.pull(din)
        if err == pydaasiot.daas_error_t.ERROR_NONE:
            print(ddo.getPayloadAsBinary())

node = pydaasiot.DaasWrapper("config.json", None)
handler = MyHandler(node)
node.doInit(100, 101)
node.enableDriver(pydaasiot.link_t._LINK_INET4, "127.0.0.1:2222")
node.map(102, pydaasiot.link_t._LINK_INET4, "127.0.0.1:2223")
node.doPerform(pydaasiot.performs_mode_t.PERFORM_CORE_THREAD)

7. CLI Usage #

The SDK includes a demo CLI based on Typer.

python -m venv venv
venv\Scripts\activate
pip install -r requirements.txt

Run the CLI from the build directory:

cd build\Release
set PYTHONPATH=.
python ..\..\examples\cli.py --help

8. Contact #

• Sebyone Srl
• Email: info@sebyone.com
• Project: DaaS-IoT Python SDK (Windows)

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© 2025 Sebyone Srl. All rights reserved.