Code Snippets

This section contains a growing collection of code snippets demonstrating how to perform specific tasks with NDK. Each snippet is focused on a single, targeted use case to help you quickly find solutions for common implementation needs.

Categories

Snippets are organized into the following categories:

• User
  • Generate Keys - Generate a new key pair and obtain all formats (private key, public key, nsec, npub)
  • Get Profile - Fetch and handle user profile information
• Event
  • Basic - Generate a basic Nostr event
  • Tagging Users and Events - Add tags to mention users and events
• Mobile
  • [Basics]
    • Initialize NDK + SQLite cache - Set up NDK with SQLite caching for mobile apps
  • User
    • Loading User Profiles - Efficiently load and cache user profiles in mobile apps
  • Events
    • Rendering Event Content - Rich text rendering of Nostr event content with mentions, hashtags, and media
  • Session
    • Login - Handle user authentication with NDK Mobile using various methods (NIP-46, nsec)
• Wallet
  • Connect Nostr Wallet Connect - Connect to an NWC wallet and set it up for zapping
  • Using Cashu Wallet - Create and use a Cashu wallet for managing e-cash tokens
  • Nutzap Monitor - Track and process Cashu tokens sent via Nostr zaps
  • Cashu Deposits - Fund your Cashu wallet using Lightning invoices
• Testing
  • Mock Relays - Create and use mock relays for testing NDK applications
  • Event Generation - Generate test events with different kinds and content
  • Nutzap Testing - Test Cashu token and Nutzap functionality
  • Relay Pool Testing - Test relay pool behavior and event handling