I want to find an API which can return free space or anything similar of disk on my Linux VM.

Hi Nham hong phuc, Yes, there are several APIs that can be used to retrieve information about the free space and usage of the disk on a Linux VM. For example the psutil library can be used to retrieve the amount of free space on a disk in a Linux VM. Here is an example Python code snippet that uses psutil to retrieve the amount of free space on the root filesystem: import psutil disk_usage = psutil.disk_usage('/') free_space = disk_usage.free print(f"Free space on root filesystem: {free_space} bytes") In this example, the psutil.disk_usage() function is called with the path of the filesystem (in this case, '/' for the root filesystem) as an argument. This function returns a named tuple with three fields: total , used , and free . The free field contains the amount of free space on the filesystem in bytes. I hope this helps?

Have any API can return free space or used of OS disk which is attached to my linux VM?

Accepted answer

RevelinoB 2,775 Reputation points

2023-05-08T08:22:09.2133333+00:00

Hi Nham hong phuc,

Yes, there are several APIs that can be used to retrieve information about the free space and usage of the disk on a Linux VM.

For example the psutil library can be used to retrieve the amount of free space on a disk in a Linux VM. Here is an example Python code snippet that uses psutil to retrieve the amount of free space on the root filesystem:

import psutil

disk_usage = psutil.disk_usage('/')

free_space = disk_usage.free

print(f"Free space on root filesystem: {free_space} bytes")

In this example, the psutil.disk_usage() function is called with the path of the filesystem (in this case, '/' for the root filesystem) as an argument. This function returns a named tuple with three fields: total, used, and free. The free field contains the amount of free space on the filesystem in bytes.

I hope this helps?
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nhâm hồng phúc 20 Reputation points

2023-05-08T08:31:32.7466667+00:00

Thanks for responding me, but have any HTTP api so that I can apply to my nestjs code?

RevelinoB 2,775 Reputation points

2023-05-08T09:04:30.1266667+00:00

Hi Nham,

Yes, there are several HTTP APIs that you can use to retrieve disk usage information from your Linux VM and integrate it with your NestJS code. Here are a few examples:

Linux Disk Usage API: This is a simple REST API that provides disk usage information for a Linux system. You can use this API to retrieve the amount of free space on a disk by sending an HTTP GET request to the API endpoint. For example, you can send a request to the following endpoint to retrieve the amount of free space on the root filesystem:

http://<your-linux-vm-ip>:8000/disk-usage?path=/

The API will return a JSON response containing information about the disk usage, including the amount of free space.

Sysstat API: This is an API that provides access to the sysstat package, which includes the iostat utility for retrieving disk I/O statistics. You can use this API to retrieve information about the usage of the disk on your Linux VM, including the amount of free space. For example, you can send an HTTP GET request to the following endpoint to retrieve disk usage information:

http://<your-linux-vm-ip>:8000/sysstat/iostat?device=/dev/sda&mode=x

In this example, the device query parameter specifies the device name of the disk that you want to retrieve usage information for, and the mode query parameter specifies the output format (in this case, x for extended output).

You can integrate these APIs with your NestJS code by using the httpService provided by NestJS to send HTTP requests to the API endpoints and retrieve the responses. For example, you can use the following code snippet to send an HTTP GET request to the Linux Disk Usage API and retrieve the amount of free space on the root filesystem:

import { HttpService } from '@nestjs/common'; import { Injectable } from '@nestjs/common'; @Injectable() export class DiskUsageService { constructor(private readonly httpService: HttpService) {} async getFreeSpace(): Promise<number> { const response = await this.httpService.get('http://<your-linux-vm-ip>:8000/disk-usage?path=/').toPromise(); const { data } = response; return data.free; } }

In this example, the DiskUsageService class defines a method called getFreeSpace() that sends an HTTP GET request to the Linux Disk Usage API and retrieves the amount of free space from the API response.

I hope this help with your nestjs code?
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Have any API can return free space or used of OS disk which is attached to my linux VM?

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