Understanding Diskusage API Comprehensive Guide and Examples for Optimized Disk Space Management

Introduction to Diskusage API

Diskusage is an essential tool for managing and monitoring disk space within your applications. By leveraging diskusage APIs, developers can efficiently discover storage usage, prevent issues related to disk space, and optimize the overall performance of their systems. This article delves into the specifics of the diskusage API with comprehensive explanations and practical code snippets to help you master its usage.

Core Diskusage API Functions

1. Checking Disk Usage

 import shutil
# Check disk usage of a specific path def check_disk_usage(path):
    total, used, free = shutil.disk_usage(path)
    return {"total": total, "used": used, "free": free}

print(check_disk_usage("/")) 

2. Monitoring Disk Space

 import psutil
# Monitor disk space on all partitions def monitor_disk_space():
    partitions = psutil.disk_partitions()
    usage_details = []
    for partition in partitions:
        usage = psutil.disk_usage(partition.mountpoint)
        usage_details.append({
            "device": partition.device,
            "mountpoint": partition.mountpoint,
            "total": usage.total,
            "used": usage.used,
            "free": usage.free,
            "percent": usage.percent
        })
    return usage_details

print(monitor_disk_space()) 

3. Cleaning Up Disk Space

 import os import shutil
# Remove files to free up space def clean_disk_space(directory, threshold_mb):
    total_removed_size = 0
    for root, dirs, files in os.walk(directory):
        for file in files:
            file_path = os.path.join(root, file)
            if os.path.getsize(file_path) > (threshold_mb * 1024 * 1024):
                total_removed_size += os.path.getsize(file_path)
                os.remove(file_path)
                print(f"Removed: {file_path}")
    return total_removed_size

print(f"Total space reclaimed: {clean_disk_space('/path/to/cleanup', 100)} bytes") 

Application Example Using Diskusage API

Let’s build a basic application that uses the above-detailed APIs to monitor and manage disk space more efficiently.

 from flask import Flask, jsonify import shutil import psutil import os
app = Flask(__name__)
@app.route('/disk-usage', methods=['GET']) def disk_usage():
    total, used, free = shutil.disk_usage("/")
    return jsonify({"total": total, "used": used, "free": free})

@app.route('/monitor-disk-space', methods=['GET']) def monitor_disks():
    partitions = psutil.disk_partitions()
    usage_details = []
    for partition in partitions:
        usage = psutil.disk_usage(partition.mountpoint)
        usage_details.append({
            "device": partition.device,
            "mountpoint": partition.mountpoint,
            "total": usage.total,
            "used": usage.used,
            "free": usage.free,
            "percent": usage.percent
        })
    return jsonify(usage_details)

@app.route('/clean-disk-space/', methods=['DELETE']) def clean_disks(threshold_mb):
    def clean_directory(directory):
        total_removed_size = 0
        for root, dirs, files in os.walk(directory):
            for file in files:
                file_path = os.path.join(root, file)
                if os.path.getsize(file_path) > (threshold_mb * 1024 * 1024):
                    total_removed_size += os.path.getsize(file_path)
                    os.remove(file_path)
        return total_removed_size

    total_space_freed = clean_directory('/path/to/cleanup')
    return jsonify({"total_space_freed": total_space_freed})

if __name__ == '__main__':
    app.run(debug=True)

This application allows users to extract and monitor disk usage details and clean up files based on specified size thresholds through a RESTful API.

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