Azure Function State Storage

A simple key-value storage implementation using Azure Blob Storage as backend.

Features

• Key-value storage with string values
• Automatic container creation
• Time marker functionality
• Thread-safe operations

Installation

pip install az-func-state

Usage

from azfuncstate import AzFuncState

# Initialize with your connection string
conn_str = "YOUR_CONNECTION_STRING"
state = AzFuncState(connection_string=conn_str, container_name="mystate")

# Basic key-value operations
state.set("user:123", "active")
status = state.get("user:123")  # Returns "active"

# Time marker operations
state.set_time_marker("last_updated")
last_update = state.get_time_marker("last_updated")

API Reference

AzFuncState(connection_string: str, container_name: str)

Initialize the state storage.

• connection_string: Azure Storage account connection string
• container_name: Name of the container to use

Methods

set(key: str, value: str) -> None

Store a key-value pair.

get(key: str) -> Optional[str]

Retrieve a value by key. Returns None if key doesn't exist.

set_time_marker(key: str) -> None

Store current UTC timestamp under the given key.

get_time_marker(key: str) -> datetime

Retrieve a stored timestamp. Raises ValueError if key doesn't exist.

Requirements

• Python 3.12+
• azure-storage-blob package