emon_tools

emon-tools is a Python library that provides a streamlined API interface for seamless interactions with EmonCMS, along with tools designed to analyze and visualize PhpFina files.

Explore the project Wiki for detailed documentation and guides: emon_tools Wiki.

Table of Contents

1. Installation

   • Best Practices for Installation

   • Global Installation

   • Module-Specific Installation

2. Modules

   • emon_fina

   • emon_api

3. Optional Full-Stack Visualization App

   • Overview
   • Local Development Setup
   • Docker Compose Deployment

4. Running Tests

5. Contributing

6. License

Installation

The emon-tools package offers flexible installation options tailored to various use cases. Depending on your requirements, you can choose to install the complete package or specific subsets of dependencies.

Best Practices for Installation

1. Environment Management: Always use a virtual environment (e.g., venv or conda) to isolate your dependencies and prevent conflicts with other projects.

2. Upgrading Dependencies: Keep your dependencies up to date by running pip install --upgrade emon-tools periodically.

3. Check Requirements: Review the module's requirements in the setup.cfg file or on the PyPI page to ensure compatibility with your system.

Global Installation

To install the entire emon-tools package along with all dependencies—and to ensure you get the latest version—run:

pip install emon-tools["all"] --upgrade

Included Dependencies:

• aiohttp
• numpy
• pandas
• matplotlib

Tip: This is the best option if you plan to use all features, including data manipulation and visualization.

Module-Specific Installation

You can install specific modules and their dependencies as needed. For example:

• To enable emon_fina module:

pip install emon-tools["fina"] --upgrade

• To enable pandas time-series output functionality:

pip install emon-tools["fina, time_series"] --upgrade

• To include graph plotting capabilities:

pip install emon-tools["fina, plot"] --upgrade

• To enable emon_api module:

pip install emon-tools["api"] --upgrade

• To enable emon_fina and emon_api modules:

pip install emon-tools["api, fina"] --upgrade

Modules

emon_tools is modular, allowing you to install and use individual components as needed.

1. emon_fina

The emon_fina module facilitates the analysis and processing of time-series data, particularly from PhpFina file formats.

Features

• Data Reading: Efficiently read data from PhpFina file formats.
• Time-Series Analysis: Compute daily statistics such as min, max, mean, and more.
• Filtering: Validate and filter data based on custom thresholds.
• Utilities: Timestamp manipulation and interval computation tools.

Usage Example

from emon_tools.fina_time_series import FinaDataFrame
from emon_tools.emon_fina.fina_plot import PlotData
from emon_tools.emon_fina.fina_models import FinaByTimeParamsModel

fdf = FinaDataFrame(
    file_name="1",
    data_dir="/path/to/phpfina/files"
)
# Access metadata of the .meta file:
print("Meta: ", fdf.meta)

# get height days of data points from meta start_time
ts = fdf.get_df_data(
    props=FinaByTimeParamsModel(
        start_time=fr.meta.start_time,
        time_window=8 * 24 * 3600,
        time_interval=10
    )
)

PlotData.plot(data=ts)

• Wiki: See emon_fina module wiki section.

• Jupiter NoteBook: See emon_fina NoteBook

2. emon_api

The emon_api module is Emoncms python api interface, used to easy interract with an EmonCMS instance via its JSON API.

Features

• Streamlined Interface: A user-friendly Python API for EmonCMS.
• RESTful Communication: Perform seamless data exchanges with EmonCMS through JSON APIs.
• Data Management: Retrieve and manage feeds, inputs, and other EmonCMS structures with ease.

Usage Example

from emon_tools.emon_api.emon_api import EmonFeedsApi
cli = EmonApi(
    url="http://127.0.0.1:8080",
    api_key="MyAPIKey123"
)
# Get current inputs and feeds on Emoncms server
inputs = cli.list_inputs()
print("Inputs: ", inputs)
feeds = cli.list_feeds()
print("Feeds: ", feeds)

• Wiki: See emon_api module wiki section.
• Examples: Explore api_bulk_structure for input and feed supervision, as well as posting bulk dummy data.

🚀 Full-Stack Visualization App Deployment

This optional full-stack application offers a graphical interface to visualize data from any EmonCMS instance and explore archived PhpFina file backups. It comprises:

• FastAPI Backend: Exposes the emon-tools functionalities via a RESTful API.
• Vite React Frontend: A modern dashboard built using React, TypeScript, and Tailwind CSS.

Overview

The full-stack app enables users to:

• Interactively browse and monitor live data from EmonCMS instances.
• Visualize historical time-series data from archived PhpFina files.
• Manage EmonCMS feeds and inputs via an intuitive web interface.

🧰 Prerequisites

Ensure the following are installed on your system:

• Docker
• Docker Compose

📦 Deployment Steps

This repository now includes a Docker Compose example that leverages the provided Dockerfiles for both backend and frontend. This approach is ideal for quickly deploying the full-stack app in a containerized environment.

1. Clone the Repository

git clone https://github.com/vemonitor/emon_tools.git
cd emon_tools

2. Set Up Environment Variables

Navigate to the Docker Compose development directory and create a .env file by copying the provided example:

cd docker-compose\dev
copy .example_env .env

Edit the .env file to replace placeholder values (changethis) with your actual configuration:

MYSQL_HOST=your_mysql_host
MYSQL_PORT=3306
MYSQL_DB=your_database_name
MYSQL_USER=your_username
MYSQL_PASSWORD=your_password
MYSQL_ROOT_PASSWORD=your_root_password

Note: The .env file is utilized by Docker Compose for variable substitution in the docker-compose.yml file. Ensure all required variables are defined to prevent runtime errors.

3. Build containers and start the containers:

From the docker-compose/dev directory, execute:

docker-compose up --build

This command builds the Docker images and starts the containers as defined in the docker-compose.yml file.

4. Access the Application

Once the containers are running:

• Frontend: Access the React dashboard at http://localhost:3000
• Backend: Access the FastAPI backend at http://localhost:8000
  • Swagger UI: http://localhost:8000/docs
  • ReDoc: http://localhost:8000/redoc

🪟 Accessing from Windows Host (WSL2 Users)

If you're running Docker within WSL2 and need to access the application from your Windows host:

1. Determine the IP address of your WSL2 instance:

   ip addr show eth0 | grep inet
   

   Look for an output similar to:

   inet 172.20.39.89/20 brd 172.20.47.255 scope global eth0
   

2. Use the extracted IP address to access the application from your Windows browser:

• Frontend: http://172.20.39.89:3000​

• Backend: http://172.20.39.89:8000

Note: WSL2 has a separate network interface, so localhost on Windows does not directly map to localhost within WSL2. Using the WSL2 IP address bridges this gap. ​

Running Tests

To ensure everything is functioning correctly, run the test suite:

pytest -v

Contributing

Contributions are welcome! To contribute:

1. Fork the repository.
2. Create a feature branch.
3. Submit a pull request with a clear description.

License

This project is licensed under the MIT License. See LICENSE for more details.