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# `@humanfs/node`
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by [Nicholas C. Zakas](https://humanwhocodes.com)
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If you find this useful, please consider supporting my work with a [donation](https://humanwhocodes.com/donate) or [nominate me](https://stars.github.com/nominate/) for a GitHub Star.
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## Description
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The `hfs` bindings for use in Node.js and Node.js-compatible runtimes.
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> [!WARNING]
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> This project is **experimental** and may change significantly before v1.0.0. Use at your own caution and definitely not in production!
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## Installation
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Install using your favorite package manager:
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```shell
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npm install @humanfs/node
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# or
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pnpm install @humanfs/node
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# or
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yarn add @humanfs/node
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# or
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bun install @humanfs/node
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```
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## Usage
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The easiest way to use hfs in your project is to import the `hfs` object:
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```js
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import { hfs } from "@humanfs/node";
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```
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Then, you can use the API methods:
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```js
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// 1. Files
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// read from a text file
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const text = await hfs.text("file.txt");
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// read from a JSON file
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const json = await hfs.json("file.json");
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// read raw bytes from a text file
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const arrayBuffer = await hfs.arrayBuffer("file.txt");
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// write text to a file
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await hfs.write("file.txt", "Hello world!");
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// write bytes to a file
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await hfs.write("file.txt", new TextEncoder().encode("Hello world!"));
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// append text to a file
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await hfs.append("file.txt", "Hello world!");
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// append bytes to a file
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await hfs.append("file.txt", new TextEncoder().encode("Hello world!"));
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// does the file exist?
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const found = await hfs.isFile("file.txt");
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// how big is the file?
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const size = await hfs.size("file.txt");
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// when was the file modified?
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const mtime = await hfs.lastModified("file.txt");
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// copy a file from one location to another
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await hfs.copy("file.txt", "file-copy.txt");
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// move a file from one location to another
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await hfs.move("file.txt", "renamed.txt");
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// delete a file
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await hfs.delete("file.txt");
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// 2. Directories
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// create a directory
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await hfs.createDirectory("dir");
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// create a directory recursively
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await hfs.createDirectory("dir/subdir");
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// does the directory exist?
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const dirFound = await hfs.isDirectory("dir");
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// copy the entire directory
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hfs.copyAll("from-dir", "to-dir");
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// move the entire directory
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hfs.moveAll("from-dir", "to-dir");
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// delete a directory
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await hfs.delete("dir");
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// delete a non-empty directory
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await hfs.deleteAll("dir");
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```
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If you'd like to create your own instance, import the `NodeHfs` constructor:
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```js
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import { NodeHfs } from "@humanfs/node";
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import fsp from "fs/promises";
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const hfs = new NodeHfs();
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// optionally specify the fs/promises object to use
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const hfs = new NodeHfs({ fsp });
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```
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If you'd like to use just the impl, import the `NodeHfsImpl` constructor:
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```js
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import { NodeHfsImpl } from "@humanfs/node";
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import fsp from "fs/promises";
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const hfs = new NodeHfsImpl();
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// optionally specify the fs/promises object to use
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const hfs = new NodeHfsImpl({ fsp });
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```
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## Errors Handled
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* `ENOENT` - in most cases, these errors are handled silently.
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* `ENFILE` and `EMFILE` - calls that result in these errors are retried for up to 60 seconds before giving up for good.
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## License
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Apache 2.0
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