Mémoire & Sessions

import { createOrka, OpenAIAdapter, MemoryVectorAdapter } from 'orkajs';
 
const orka = createOrka({
  llm: new OpenAIAdapter({ apiKey: process.env.OPENAI_API_KEY! }),
  vectorDB: new MemoryVectorAdapter(),
  memory: {
    maxMessages: 20,           // Maximum number of messages to keep
    strategy: 'sliding_window', // 'sliding_window' | 'summary' | 'buffer'
  },
});
 
// Create a memory instance
const memory = orka.memory();
 
// Add messages
memory.addMessage({ role: 'user', content: 'My name is Thomas.' });
memory.addMessage({ role: 'assistant', content: 'Hello Thomas! How can I help you?' });
memory.addMessage({ role: 'user', content: 'I'm looking for a laptop for development.' });
 
// Get history
const history = memory.getHistory();
for (const msg of history) {
  console.log(`${msg.role}: ${msg.content}`);
}
 
// Clear memory
memory.clear();

// Create a sessions manager
const sessions = orka.sessions({
  ttlMs: 30 * 60 * 1000, // 30 minutes TTL
  maxSessions: 1000,      // Max sessions in memory
});
 
// User session 1
sessions.addMessage('user-123', { role: 'user', content: 'Bonjour, je veux un remboursement.' });
sessions.addMessage('user-123', { role: 'assistant', content: 'Bien sûr, quel est votre numéro de commande ?' });
 
// User session 2 (independent)
sessions.addMessage('user-456', { role: 'user', content: 'Comment changer mon mot de passe ?' });
sessions.addMessage('user-456', { role: 'assistant', content: 'Allez dans Paramètres > Sécurité.' });
 
// Statistics
console.log(`Active sessions: ${sessions.getSessionCount()}`);
console.log(`Session user-123: ${sessions.getHistory('user-123').length} messages`);
console.log(`Session user-456: ${sessions.getHistory('user-456').length} messages`);
 
// Get history of a session
const userHistory = sessions.getHistory('user-123');
 
// Delete a session
sessions.deleteSession('user-123');
 
// Clean up expired sessions
sessions.cleanup();

// Create an agent with built-in memory
const agent = orka.agent({
  goal: 'Helping users with their questions',
  tools: [{
    name: 'search',
    description: 'Search in the documentation',
    parameters: [
      { name: 'query', type: 'string', description: 'Search term', required: true },
    ],
    async execute(input) {
      return { output: `Résultat pour "${input.query}": Documentation trouvée.` };
    },
  }],
  maxSteps: 3,
  memory: true, // Enable memory for the agent
});
 
// First interaction
const result1 = await agent.run('My name is Thomas and I'm looking for a laptop.');
console.log(`Agent: ${result1.output}`);
 
// The agent remembers the previous context
const result2 = await agent.run('What is my name?');
console.log(`Agent: ${result2.output}`); // "Your name is Thomas"
 
// Clear the agent's memory
agent.clearMemory();

import { createOrka, OpenAIAdapter, MemoryVectorAdapter } from 'orkajs';
 
async function main() {
  const orka = createOrka({
    llm: new OpenAIAdapter({ apiKey: process.env.OPENAI_API_KEY! }),
    vectorDB: new MemoryVectorAdapter(),
    memory: {
      maxMessages: 20,
      strategy: 'sliding_window',
    },
  });
 
  // === Simple memory ===
  console.log('💬 Chat with memory\n');
 
  const memory = orka.memory();
  memory.addMessage({ role: 'user', content: 'My name is Thomas.' });
  memory.addMessage({ role: 'assistant', content: 'Hello Thomas!' });
  memory.addMessage({ role: 'user', content: 'Je cherche un laptop.' });
 
  console.log('Historique:');
  for (const msg of memory.getHistory()) {
    console.log(`  ${msg.role}: ${msg.content}`);
  }
 
  // === Sessions multiples ===
  console.log('\n📋 Sessions multiples\n');
 
  const sessions = orka.sessions();
 
  sessions.addMessage('user-123', { role: 'user', content: 'Bonjour, remboursement svp.' });
  sessions.addMessage('user-123', { role: 'assistant', content: 'Numéro de commande ?' });
 
  sessions.addMessage('user-456', { role: 'user', content: 'Mot de passe oublié.' });
  sessions.addMessage('user-456', { role: 'assistant', content: 'Paramètres > Sécurité.' });
 
  console.log(`Sessions actives: ${sessions.getSessionCount()}`);
  console.log(`user-123: ${sessions.getHistory('user-123').length} messages`);
  console.log(`user-456: ${sessions.getHistory('user-456').length} messages`);
 
  // === Agent with memory ===
  console.log('\n🤖 Agent with memory\n');
 
  const agent = orka.agent({
    goal: 'Helping users',
    tools: [{
      name: 'search',
      description: 'Search documentation',
      async execute(input) {
        return { output: `Result for "${input.query}".` };
      },
    }],
    maxSteps: 3,
  });
 
  const result = await agent.run('Remember that my name is Thomas.');
  console.log(`Agent: ${result.output}`);
}
 
main().catch(console.error);