Energy Tracker API Client

Async Python client for the Energy Tracker public REST API.

Installation

pip install energy-tracker-api

Requirements

• Python 3.14+
• Personal Access Token from Energy Tracker

Quick Start

import asyncio
from decimal import Decimal
from energy_tracker_api import EnergyTrackerClient, CreateMeterReadingDto

async def main():
    async with EnergyTrackerClient(access_token="your-token") as client:
        # List devices
        devices = await client.devices.list_standard()

        # Create a meter reading
        reading = CreateMeterReadingDto(value=Decimal("12345.67"))
        await client.meter_readings.create(
            device_id="your-device-id",
            meter_reading=reading,
        )

asyncio.run(main())

Resources

The client exposes five resource groups — all endpoints, parameters, and DTOs are documented in the OpenAPI specification.

Starting with version 3.0.0, meter-reading CSV exports default to semicolon (;). To preserve the comma-separated output of version 2.x, explicitly set delimiter=CsvDelimiter.COMMA in ExportMeterReadingsDto.

Configuration

client = EnergyTrackerClient(
    access_token="your-token",
    base_url="https://custom-api.example.com",  # Optional
    timeout=30,                                 # Optional, default: 10s
    calculation_timeout=60,                     # Optional, calculations only
)

Error Handling

All API errors inherit from EnergyTrackerAPIError and carry an api_message list with details from the server. Each operation accepts only its documented success status (200, 201 or 204). Unexpected statuses and redirects raise EnergyTrackerAPIError; redirects are not followed.

from energy_tracker_api import (
    EnergyTrackerAPIError,
    ValidationError,
    AuthenticationError,
    ForbiddenError,
    ResourceNotFoundError,
    ConflictError,
    RateLimitError,
)

try:
    await client.meter_readings.create(device_id, reading)
except RateLimitError as e:
    print(f"Retry after {e.retry_after}s")
except EnergyTrackerAPIError as e:
    print(e.api_message)

Development

make install-dev  # Install dependencies
make test         # Run tests
make type-check   # mypy
make format       # black + isort
make lint         # Linters
make check-dist   # Build, validate and import an isolated wheel installation

Package metadata, version and dependencies are maintained in pyproject.toml. The requirements files are compatibility entry points for installing the package and its development extra. The Makefile uses python3.14 by default; override it with make install-dev PYTHON=/path/to/python3.14 when needed.

Meter reading values must be finite Decimal values. The client serializes them as fixed-point strings without redundant fractional zeros and never rounds them. Server-side range and precision validation still applies. When creating and deleting the same reading, reuse its timestamp; prefer UTC-aware timestamps with whole seconds as shown in example.py.

License

MIT