node-appwrite/docs/examples/storage/create-file.md

Appwrite is an open-source self-hosted backend server that abstract and simplify complex and repetitive development tasks behind a very simple REST API

const sdk = require('node-appwrite');
const fs = require('fs');

const client = new sdk.Client()
    .setEndpoint('https://cloud.appwrite.io/v1') // Your API Endpoint
    .setProject('5df5acd0d48c2') // Your project ID
    .setSession(''); // The user session to authenticate with

const storage = new sdk.Storage(client);

const result = await storage.createFile(
    '<BUCKET_ID>', // bucketId
    '<FILE_ID>', // fileId
    InputFile.fromPath('/path/to/file.png', 'file.png'), // file
    ["read("any")"] // permissions (optional)
);