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Discord Bot Example

Build a Discord bot that posts crypto news to your server.

Features

  • 📰 Latest news command
  • 🔍 Search functionality
  • 💰 Price checks
  • 📊 Market sentiment
  • 🔔 Breaking news alerts

Prerequisites

  • Node.js 18+
  • Discord bot token (create one here)
  • A Discord server where you can add the bot

Quick Start

1. Create Bot Application

  1. Go to Discord Developer Portal
  2. Click New Application
  3. Name it "Crypto News Bot"
  4. Go to Bot → Add Bot
  5. Copy the bot token
  6. Enable Message Content Intent

2. Install Dependencies

npm install discord.js

3. Create the Bot

// discord-bot.js
import { Client, GatewayIntentBits, EmbedBuilder } from 'discord.js';

const client = new Client({
  intents: [
    GatewayIntentBits.Guilds,
    GatewayIntentBits.GuildMessages,
    GatewayIntentBits.MessageContent,
  ],
});

const API_BASE = 'https://cryptocurrency.cv/api';

// Fetch news from API
async function getNews(limit = 5, category = null) {
  const url = category 
    ? `${API_BASE}/news?limit=${limit}&category=${category}`
    : `${API_BASE}/news?limit=${limit}`;
  const response = await fetch(url);
  return response.json();
}

// Search news
async function searchNews(query, limit = 5) {
  const response = await fetch(`${API_BASE}/search?q=${encodeURIComponent(query)}&limit=${limit}`);
  return response.json();
}

// Get Fear & Greed Index
async function getFearGreed() {
  const response = await fetch(`${API_BASE}/fear-greed`);
  return response.json();
}

// Create news embed
function createNewsEmbed(articles, title = '📰 Latest Crypto News') {
  const embed = new EmbedBuilder()
    .setTitle(title)
    .setColor(0x5865F2)
    .setTimestamp();

  articles.slice(0, 10).forEach(article => {
    embed.addFields({
      name: article.source,
      value: `[${article.title}](${article.link})\n*${article.timeAgo}*`,
      inline: false,
    });
  });

  return embed;
}

// Message handler
client.on('messageCreate', async (message) => {
  if (message.author.bot) return;

  const content = message.content.toLowerCase();

  // !news command
  if (content.startsWith('!news')) {
    const args = content.split(' ').slice(1);
    const category = args[0] || null;
    
    try {
      const data = await getNews(5, category);
      const embed = createNewsEmbed(data.articles);
      await message.reply({ embeds: [embed] });
    } catch (error) {
      await message.reply('❌ Failed to fetch news.');
    }
  }

  // !search command
  if (content.startsWith('!search ')) {
    const query = content.slice(8);
    
    try {
      const data = await searchNews(query);
      const embed = createNewsEmbed(data.articles, `🔍 Results for "${query}"`);
      await message.reply({ embeds: [embed] });
    } catch (error) {
      await message.reply('❌ Search failed.');
    }
  }

  // !fear command
  if (content === '!fear') {
    try {
      const data = await getFearGreed();
      const embed = new EmbedBuilder()
        .setTitle('📊 Fear & Greed Index')
        .setColor(data.value < 25 ? 0xFF0000 : data.value > 75 ? 0x00FF00 : 0xFFFF00)
        .addFields(
          { name: 'Value', value: `${data.value}`, inline: true },
          { name: 'Classification', value: data.classification, inline: true },
        )
        .setTimestamp();
      await message.reply({ embeds: [embed] });
    } catch (error) {
      await message.reply('❌ Failed to fetch Fear & Greed Index.');
    }
  }
});

client.once('ready', () => {
  console.log(`Logged in as ${client.user.tag}`);
});

client.login(process.env.DISCORD_TOKEN);

4. Run the Bot

DISCORD_TOKEN=your_token_here node discord-bot.js

Slash Commands

For a more modern experience, use slash commands:

import { SlashCommandBuilder, REST, Routes } from 'discord.js';

const commands = [
  new SlashCommandBuilder()
    .setName('news')
    .setDescription('Get latest crypto news')
    .addStringOption(option =>
      option.setName('category')
        .setDescription('News category')
        .addChoices(
          { name: 'DeFi', value: 'defi' },
          { name: 'Bitcoin', value: 'bitcoin' },
          { name: 'Institutional', value: 'institutional' },
        )),
  new SlashCommandBuilder()
    .setName('search')
    .setDescription('Search crypto news')
    .addStringOption(option =>
      option.setName('query')
        .setDescription('Search query')
        .setRequired(true)),
  new SlashCommandBuilder()
    .setName('fear')
    .setDescription('Get Fear & Greed Index'),
];

// Register commands
const rest = new REST().setToken(process.env.DISCORD_TOKEN);
await rest.put(
  Routes.applicationCommands(CLIENT_ID),
  { body: commands },
);

Breaking News Alerts

Post breaking news automatically:

const ALERT_CHANNEL_ID = 'your_channel_id';

async function checkBreakingNews() {
  const response = await fetch(`${API_BASE}/breaking?limit=3`);
  const data = await response.json();
  
  // Store seen articles to avoid duplicates
  const seen = new Set(/* load from storage */);
  
  for (const article of data.articles) {
    if (!seen.has(article.link)) {
      const channel = client.channels.cache.get(ALERT_CHANNEL_ID);
      const embed = new EmbedBuilder()
        .setTitle('🚨 Breaking News')
        .setDescription(`[${article.title}](${article.link})`)
        .setColor(0xFF0000)
        .setFooter({ text: article.source })
        .setTimestamp();
      
      await channel.send({ embeds: [embed] });
      seen.add(article.link);
    }
  }
}

// Check every 5 minutes
setInterval(checkBreakingNews, 5 * 60 * 1000);

Full Example

See the complete Discord bot: examples/discord-bot.js