Working with GCore Storage API using JavaScript

GCore Storage API provides developers with the ability to read, write and delete files programmatically. In this blog post, we will explore how to use the Storage API in JavaScript.

Prerequisites

To use the GCore Storage API, you need to create a GCore account and obtain an API key. Once you have your API key, you can authenticate your requests to the API.

API endpoints

The Storage API provides the following endpoints:

• /file - to upload and download files.
• /ls - to list files and directories.
• /mkdir - to create a new directory.
• /rm - to remove a file or directory.

Uploading a file

To upload a file using JavaScript, you can use the Fetch API. Here's an example code snippet:

const apiKey = 'YOUR_API_KEY';
const url = 'https://geo-storage.storage.yandexcloud.net/file/folder/filename';
const file = new File(['content'], 'filename.txt', { type: 'text/plain' });

fetch(url, {
  method: 'PUT',
  headers: {
    'Authorization': apiKey,
    'Content-Type': file.type
  },
  body: file
})
.then(response => response.json())
.then(data => console.log(data));

In this code snippet, we first define our API key and the URL of the file we want to upload. We then create a new File object with the content we want to upload, and use the Fetch API to send the PUT request.

Downloading a file

To download a file using JavaScript, we can use the Fetch API again. Here's an example code snippet:

const apiKey = 'YOUR_API_KEY';
const url = 'https://geo-storage.storage.yandexcloud.net/file/folder/filename';

fetch(url, {
  method: 'GET',
  headers: {
    'Authorization': apiKey
  }
})
.then(response => response.blob())
.then(blob => {
  const url = window.URL.createObjectURL(blob);
  const a = document.createElement('a');
  a.href = url;
  a.download = 'filename';
  a.click();
});

In this code snippet, we first define our API key and the URL of the file we want to download. We then use the Fetch API to send the GET request and retrieve the file as a Blob. We then create a download link and simulate a click() event to download the file.

Listing files and directories

To list files and directories using JavaScript, we can use the Fetch API again. Here's an example code snippet:

const apiKey = 'YOUR_API_KEY';
const url = 'https://geo-storage.storage.yandexcloud.net/ls/folder';

fetch(url, {
  headers: {
    'Authorization': apiKey
  }
})
.then(response => response.json())
.then(data => console.log(data));

In this code snippet, we first define our API key and the URL of the directory we want to list. We then use the Fetch API to send the GET request and retrieve the list of files and directories.

Creating a new directory

To create a new directory using JavaScript, we can use the Fetch API again. Here's an example code snippet:

const apiKey = 'YOUR_API_KEY';
const url = 'https://geo-storage.storage.yandexcloud.net/mkdir/folder/new-folder';

fetch(url, {
  method: 'POST',
  headers: {
    'Authorization': apiKey
  }
})
.then(response => response.json())
.then(data => console.log(data));

In this code snippet, we first define our API key and the URL of the new directory we want to create. We then use the Fetch API to send the POST request.

Removing a file or directory

To remove a file or directory using JavaScript, we can use the Fetch API again. Here's an example code snippet:

const apiKey = 'YOUR_API_KEY';
const url = 'https://geo-storage.storage.yandexcloud.net/rm/folder/filename';

fetch(url, {
  method: 'DELETE',
  headers: {
    'Authorization': apiKey
  }
})
.then(response => response.json())
.then(data => console.log(data));

In this code snippet, we first define our API key and the URL of the file or directory we want to remove. We then use the Fetch API to send the DELETE request.

Conclusion

In this blog post, we explored how to use the GCore Storage API in JavaScript. We covered uploading, downloading, listing, creating and removing files and directories using the Fetch API. With this knowledge, you can integrate the Storage API in your web applications and automate your file management tasks.