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# Changelog # Changelog
## 2025-08-03 - 3.2.1 - docs(readme)
Enhance readme with comprehensive documentation and modern formatting
- Updated readme.md with enhanced formatting, emojis, and badges
- Added comprehensive API reference with clear examples for all functions
- Included environment compatibility table showing Node.js vs Browser support
- Added advanced usage examples including error handling and import strategies
- Improved documentation structure with better visual organization
- Fixed typo in sha265FromObject examples to sha256FromObject
## 2025-06-19 - 3.2.0 - feat(package)
Update package.json to use exports field for dual entry points
- Replaced the main and typings fields with an exports object that supports both default and web entry points
- Ensures consistency in module resolution between Node.js and browser environments
## 2025-06-19 - 3.1.0 - feat(browser) ## 2025-06-19 - 3.1.0 - feat(browser)
Implement fallback SHA256 for non-HTTPS environments and enhance browser tests for consistent hashing Implement fallback SHA256 for non-HTTPS environments and enhance browser tests for consistent hashing

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{ {
"name": "@push.rocks/smarthash", "name": "@push.rocks/smarthash",
"version": "3.1.0", "version": "3.2.1",
"private": false, "private": false,
"description": "Cross-environment hash functions (SHA256 and MD5) for Node.js and browsers, with support for strings, streams, and files.", "description": "Cross-environment hash functions (SHA256 and MD5) for Node.js and browsers, with support for strings, streams, and files.",
"main": "dist_ts/index.js", "exports": {
"typings": "dist_ts/index.d.ts", ".": "./dist_ts/index.js",
"./web": "./dist_ts_web/index.js"
},
"scripts": { "scripts": {
"test": "(tstest test/ --web)", "test": "(tstest test/ --web)",
"build": "(tsbuild tsfolders --allowimplicitany)", "build": "(tsbuild tsfolders --allowimplicitany)",

222
readme.md
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# @push.rocks/smarthash # 🔐 @push.rocks/smarthash
simplified access to node hash functions
## Install > **Cross-environment hashing made simple** 🚀
To install `@push.rocks/smarthash`, use the following command with npm: > SHA256 and MD5 hash functions that work seamlessly in both Node.js and browsers, with zero configuration.
[![npm version](https://img.shields.io/npm/v/@push.rocks/smarthash.svg)](https://www.npmjs.com/package/@push.rocks/smarthash)
[![TypeScript](https://img.shields.io/badge/TypeScript-Ready-blue.svg)](https://www.typescriptlang.org/)
[![Cross Platform](https://img.shields.io/badge/Platform-Node.js%20%7C%20Browser-brightgreen.svg)](#)
## ✨ Why SmartHash?
- 🌐 **Universal**: Works in Node.js AND browsers without polyfills
-**Smart Fallbacks**: Automatically handles Web Crypto API limitations (like non-HTTPS environments)
- 🔧 **TypeScript First**: Full type safety and IntelliSense support
- 📦 **Dual Entry Points**: Optimized builds for both environments
- 🎯 **Simple API**: Consistent interface across all platforms
## 🚀 Quick Start
```bash ```bash
npm install @push.rocks/smarthash --save pnpm install @push.rocks/smarthash
``` ```
This will add `@push.rocks/smarthash` to your project's dependencies. ## 📖 API Reference
## Usage ### 🔤 String Hashing
The `@push.rocks/smarthash` library provides a simplified interface to Node.js hash functions, including utilities for hashing strings, files, and streams with popular algorithms like SHA-256 and MD5. Below are detailed examples to demonstrate the capabilities and usage of this library using ESM syntax and TypeScript.
### Hashing Strings
#### SHA-256
```typescript ```typescript
import { sha256FromString, sha256FromStringSync } from '@push.rocks/smarthash'; import { sha256FromString, sha256FromStringSync } from '@push.rocks/smarthash';
// Asynchronously hash a string // Async (works everywhere)
const asyncHash = async () => { const hash = await sha256FromString('Hello, world!');
const hash = await sha256FromString('Hello, world!'); console.log(hash); // 📄 64-character hex string
console.log(hash); // Output the hashed string
};
asyncHash();
// Synchronously hash a string // Sync (Node.js only)
const syncHash = sha256FromStringSync('Hello, world!'); const hashSync = sha256FromStringSync('Hello, world!');
console.log(syncHash); // Output the hashed string console.log(hashSync); // ⚡ Instant result
``` ```
#### MD5 ### 🗂️ File & Stream Hashing (Node.js Only)
```typescript
import { sha256FromFile, sha256FromStream } from '@push.rocks/smarthash';
import fs from 'fs';
// Hash files directly
const fileHash = await sha256FromFile('./myfile.txt');
console.log(fileHash); // 📁 File's SHA256 hash
// Hash streams (perfect for large files)
const stream = fs.createReadStream('./largefile.zip');
const streamHash = await sha256FromStream(stream);
console.log(streamHash); // 🌊 Stream's SHA256 hash
```
### 🧱 Buffer Hashing
```typescript
import { sha256FromBuffer } from '@push.rocks/smarthash';
// Works with both Buffer (Node.js) and Uint8Array (Browser)
const encoder = new TextEncoder();
const buffer = encoder.encode('Hello, world!');
const bufferHash = await sha256FromBuffer(buffer);
console.log(bufferHash); // 🔢 Buffer's SHA256 hash
```
### 🎯 Object Hashing
```typescript
import { sha256FromObject } from '@push.rocks/smarthash';
// Consistent hashing for JavaScript objects
const myObject = {
userId: 12345,
role: 'admin',
timestamp: Date.now()
};
const objectHash = await sha256FromObject(myObject);
console.log(objectHash); // 🎯 Deterministic object hash
```
> **🔥 Pro Tip**: Object property order doesn't matter! `{a: 1, b: 2}` and `{b: 2, a: 1}` produce the same hash.
### 🛡️ MD5 Hashing (Node.js Only)
```typescript ```typescript
import { md5FromString } from '@push.rocks/smarthash'; import { md5FromString } from '@push.rocks/smarthash';
// Asynchronously hash a string with MD5 // Legacy MD5 support (use SHA256 for new projects!)
const md5Hash = async () => { const md5Hash = await md5FromString('Hello, world!');
const hash = await md5FromString('Hello, world!'); console.log(md5Hash); // 🔐 32-character MD5 hash
console.log(hash); // Output the MD5 hash
};
md5Hash();
``` ```
### Hashing Files ## 🌍 Environment Compatibility
To hash a file, you can use the `sha256FromFile` function. It reads the file specified by the path and calculates the SHA-256 hash.
```typescript
import { sha256FromFile } from '@push.rocks/smarthash';
// Asynchronously hash a file | Function | Node.js | Browser | Notes |
const hashFile = async () => { |----------|---------|---------|-------|
const fileHash = await sha256FromFile('./path/to/your/file.txt'); | `sha256FromString` | ✅ | ✅ | Universal support |
console.log(fileHash); // Output the file's hash | `sha256FromStringSync` | ✅ | ❌ | Sync not possible in browsers |
}; | `sha256FromBuffer` | ✅ | ✅ | Handles Buffer/Uint8Array |
hashFile(); | `sha256FromFile` | ✅ | ❌ | File system access required |
``` | `sha256FromStream` | ✅ | ❌ | Node.js streams only |
| `sha256FromObject` | ✅ | ✅ | Uses JSON serialization |
| `md5FromString` | ✅ | ❌ | Not supported by Web Crypto API |
### Hashing Streams ## 🔧 Advanced Usage
`@push.rocks/smarthash` also allows for hashing of streams, which is particularly useful for large files or data streams.
```typescript
import { sha256FromStream } from '@push.rocks/smarthash';
import fs from 'fs';
// Create a read stream from a file ### Error Handling
const readStream = fs.createReadStream('./path/to/your/largeFile.txt');
// Asynchronously hash the stream
const hashStream = async () => {
const streamHash = await sha256FromStream(readStream);
console.log(streamHash); // Output the hash of the stream's content
};
hashStream();
```
### Advanced Usage
#### Hashing Objects
For hashing JavaScript objects, you can serialize them and hash the resulting string. This is useful for creating hashes from complex data structures.
```typescript
import { sha265FromObject } from '@push.rocks/smarthash';
// Hash a JavaScript object
const hashObject = async () => {
const object = { hello: 'world', number: 42 };
const objectHash = await sha265FromObject(object);
console.log(objectHash); // Output the hash of the object
};
hashObject();
```
#### Error Handling
All asynchronous functions return promises, so you can use `.catch()` for error handling or try-catch blocks within async functions.
```typescript ```typescript
import { sha256FromString } from '@push.rocks/smarthash'; import { sha256FromString } from '@push.rocks/smarthash';
// Using .catch() for promises try {
sha256FromString('test') const hash = await sha256FromString('sensitive data');
.then(hash => console.log(hash)) console.log(`✅ Hash computed: ${hash}`);
.catch(error => console.error(error)); } catch (error) {
console.error('❌ Hashing failed:', error);
// Using try-catch with async functions }
const getHash = async () => {
try {
const hash = await sha256FromString('test');
console.log(hash);
} catch (error) {
console.error(error);
}
};
getHash();
``` ```
### Best Practices ### Browser-Specific Features
- Utilize asynchronous functions for hashing large files or streams to avoid blocking the main thread.
- For hashing sensitive information, ensure to follow security best practices, including using up-to-date algorithms and managing secrets properly.
By leveraging `@push.rocks/smarthash`, developers can easily integrate hashing functionalities into their Node.js applications, benefiting from its simplified API and TypeScript support for better development experience. In browsers, SmartHash automatically:
- 🔒 Uses Web Crypto API when available (HTTPS contexts)
- 🔄 Falls back to pure JavaScript implementation in non-HTTPS environments
- ⚠️ Warns when trying to use Node.js-only functions
### Import Strategies
```typescript
// Main entry point (Node.js optimized)
import { sha256FromString } from '@push.rocks/smarthash';
// Browser-specific entry point (smaller bundle)
import { sha256FromString } from '@push.rocks/smarthash/web';
```
## 🛠️ Development
```bash
# Run tests (both Node.js and browser)
pnpm test
# Build the project
pnpm build
# Generate documentation
pnpm buildDocs
```
## 🔐 Security Notes
-**SHA256**: Cryptographically secure, recommended for all use cases
- ⚠️ **MD5**: Legacy support only, not recommended for security-critical applications
- 🌍 **Cross-Environment**: Produces identical hashes across Node.js and browsers
- 🔒 **Web Crypto**: Uses native browser APIs when available for maximum performance
## 🤝 Contributing
We welcome contributions! This project follows modern TypeScript practices and includes comprehensive tests for both environments.
## License and Legal Information ## License and Legal Information

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*/ */
export const commitinfo = { export const commitinfo = {
name: '@push.rocks/smarthash', name: '@push.rocks/smarthash',
version: '3.1.0', version: '3.2.0',
description: 'Cross-environment hash functions (SHA256 and MD5) for Node.js and browsers, with support for strings, streams, and files.' description: 'Cross-environment hash functions (SHA256 and MD5) for Node.js and browsers, with support for strings, streams, and files.'
} }

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*/ */
export const commitinfo = { export const commitinfo = {
name: '@push.rocks/smarthash', name: '@push.rocks/smarthash',
version: '3.1.0', version: '3.2.0',
description: 'Cross-environment hash functions (SHA256 and MD5) for Node.js and browsers, with support for strings, streams, and files.' description: 'Cross-environment hash functions (SHA256 and MD5) for Node.js and browsers, with support for strings, streams, and files.'
} }