@affectively/utils

TypeScript utility functions for common development tasks.

Features

• API Retry - Automatic retry with authentication token refresh
• Logger - Simple, consistent logging utility
• Short URL - Generate cryptographically secure short codes

Installation

npm install @affectively/utils
# or
yarn add @affectively/utils
# or
bun add @affectively/utils

Quick Start

import { fetchWithRetry, logger, generateShortCode } from '@affectively/utils';

// API retry with auth
const response = await fetchWithRetry('/api/data', {
 method: 'GET'
}, {
 maxRetries: 3,
 getToken: async () => localStorage.getItem('token')
});

// Logging
logger.info('Request completed', { status: response.status });

// Short URL generation
const code = generateShortCode(); // e.g., "xK9mN2pL"

API Reference

API Retry

Automatically retry failed API requests with token refresh.

import { fetchWithRetry, fetchJsonWithRetry } from '@affectively/utils/api-retry';

// Basic retry
const response = await fetchWithRetry(url, options, {
 maxRetries: 2,
 getToken: async () => getAuthToken(),
 isAuthError: (response) => response.status === 401
});

// JSON retry with auto-parsing
const data = await fetchJsonWithRetry<MyType>(url, options, retryOptions);

Logger

Simple logging with consistent formatting.

import { logger } from '@affectively/utils/logger';

logger.debug('Debug message', { context: 'value' });
logger.info('Info message');
logger.warn('Warning message');
logger.error('Error message', error);

Short URL

Generate cryptographically secure short codes.

import { generateShortCode, createShortUrl } from '@affectively/utils/short-url';

// Generate 8-character base62 code
const code = generateShortCode(); // "xK9mN2pL"

// Create full short URL
const url = createShortUrl(code, 'https://mysite.com'); // "https://mysite.com/s/xK9mN2pL"

Tree-Shakeable Imports

Import only what you need:

// Import everything
import { fetchWithRetry, logger, generateShortCode } from '@affectively/utils';

// Or import specific modules
import { fetchWithRetry } from '@affectively/utils/api-retry';
import { logger } from '@affectively/utils/logger';
import { generateShortCode } from '@affectively/utils/short-url';

License

MIT License - see LICENSE for details.

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