# Upload data to sandbox

You can upload data to the sandbox using the `files.write()` method.

## Upload single file

<CodeGroup>
```js
import fs from 'fs'
import { Sandbox } from '@e2b/code-interpreter'

const sandbox = await Sandbox.create()

// Read file from local filesystem
const content = fs.readFileSync('/local/path')
// Upload file to sandbox
await sandbox.files.write('/path/in/sandbox', content)
```
```python
from e2b_code_interpreter import Sandbox

sandbox = Sandbox()

# Read file from local filesystem
with open("path/to/local/file", "rb") as file:
  # Upload file to sandbox
  sandbox.files.write("/path/in/sandbox", file)
```
</CodeGroup>

## Upload directory / multiple files

<CodeGroup>
```js
const fs = require('fs');
const path = require('path');

import { Sandbox } from '@e2b/code-interpreter'

const sandbox = await Sandbox.create()

// Read all files in the directory and store their paths and contents in an array
const readDirectoryFiles = (directoryPath) => {
  // Read all files in the local directory
  const files = fs.readdirSync(directoryPath);

  // Map files to objects with path and data
  const filesArray = files
    .filter(file => {
      const fullPath = path.join(directoryPath, file);
      // Skip if it's a directory
      return fs.statSync(fullPath).isFile();
    })
    .map(file => {
      const filePath = path.join(directoryPath, file);
    
      // Read the content of each file
      return {
        path: filePath,
        data: fs.readFileSync(filePath, 'utf8')
      };
    });

  return filesArray;
};

// Usage example
const files = readDirectoryContents('/local/dir');
console.log(files); 
// [
//   { path: '/local/dir/file1.txt', data: 'File 1 contents...' },
//   { path: '/local/dir/file2.txt', data: 'File 2 contents...' },
//   ...
// ]

await sandbox.files.write(files)
```
```python
import os
from e2b_code_interpreter import Sandbox

sandbox = Sandbox()

def read_directory_files(directory_path):
    files = []
    
    # Iterate through all files in the directory
    for filename in os.listdir(directory_path):
        file_path = os.path.join(directory_path, filename)
        
        # Skip if it's a directory
        if os.path.isfile(file_path):
            # Read file contents in binary mode
            with open(file_path, "rb") as file:
                files.append({
                    'path': file_path,
                    'data': file.read()
                })
    
    return files

files = read_directory_files("/local/dir")
print(files)
# [
#  {"'path": "/local/dir/file1.txt", "data": "File 1 contents..." },
#   { "path": "/local/dir/file2.txt", "data": "File 2 contents..." },
#   ...
# ]

sandbox.files.write(files)
```
</CodeGroup>