​
Monitoring Active Calls

Track ongoing conversations across your application: 
// List all calls with filtering
const getActiveCalls = async () => {
  const response = await fetch('https://api.ultravox.ai/api/calls?pageSize=50', {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  const data = await response.json();
  
  // Filter for active calls (those that are joined but not ended)
  const activeCalls = data.results.filter(call => 
    call.joined && !call.ended
  );
  
  return activeCalls;
};

// Get calls with specific metadata
const getCallsBySource = async (source) => {
  const params = new URLSearchParams({
    'metadata.source': source,
    pageSize: 100
  });
  
  const response = await fetch(`https://api.ultravox.ai/api/calls?${params}`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return await response.json();
};

​
Advanced Filtering

Use query parameters to find specific calls: 
// Filter by date range and duration
const getRecentLongCalls = async () => {
  const params = new URLSearchParams({
    fromDate: '2024-01-01',
    toDate: '2024-01-31',
    durationMin: '300s',  // 5 minutes or longer
    sort: '-created'      // Newest first
  });
  
  const response = await fetch(`https://api.ultravox.ai/api/calls?${params}`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return await response.json();
};

// Search calls by content
const searchCalls = async (searchTerm) => {
  const params = new URLSearchParams({
    search: searchTerm,
    pageSize: 20
  });
  
  const response = await fetch(`https://api.ultravox.ai/api/calls?${params}`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return await response.json();
};

​
Retrieving Call Details

Get comprehensive information about specific calls: 
// Get call details
const getCallDetails = async (callId) => {
  const response = await fetch(`https://api.ultravox.ai/api/calls/${callId}`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  const call = await response.json();
  
  console.log('Call Status:', call.ended ? 'Completed' : 'Active');
  console.log('Duration:', call.ended ? 
    calculateDuration(call.joined, call.ended) : 'Ongoing');
  console.log('End Reason:', call.endReason);
  
  return call;
};

// Get conversation messages
const getCallMessages = async (callId) => {
  const response = await fetch(`https://api.ultravox.ai/api/calls/${callId}/messages`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return await response.json();
};

// Get call events and logs
const getCallEvents = async (callId) => {
  const response = await fetch(`https://api.ultravox.ai/api/calls/${callId}/events`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return await response.json();
};

​
Working with Call Stages

For calls using Call Stages, use stage-specific endpoints: 
// Get all stages for a call
const getCallStages = async (callId) => {
  const response = await fetch(`https://api.ultravox.ai/api/calls/${callId}/stages`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return await response.json();
};

// Get messages for a specific stage
const getStageMessages = async (callId, stageId) => {
  const response = await fetch(
    `https://api.ultravox.ai/api/calls/${callId}/stages/${stageId}/messages`,
    { headers: { 'X-API-Key': 'your-api-key' } }
  );
  
  return await response.json();
};

​
Call Recordings

Retrieve audio recordings when recording is enabled: 
// Get call recording
const getCallRecording = async (callId) => {
  const response = await fetch(`https://api.ultravox.ai/api/calls/${callId}/recording`, {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  if (response.ok) {
    const audioBlob = await response.blob();
    // Handle audio data (save to file, play, etc.)
    return audioBlob;
  } else {
    console.log('Recording not available');
    return null;
  }
};

​
Call Deletion

Remove calls and all associated messages, recordings, and stages: 
// Delete a specific call
const deleteCall = async (callId) => {
  const response = await fetch(`https://api.ultravox.ai/api/calls/${callId}`, {
    method: 'DELETE',
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return response.ok;
};

​
List Deleted Calls

When calls are deleted, we retain basic metadata for record keeping: 
// View deleted calls (tombstone records)
const getDeletedCalls = async () => {
  const response = await fetch('https://api.ultravox.ai/api/deleted_calls', {
    headers: { 'X-API-Key': 'your-api-key' }
  });
  
  return await response.json();
};