curl -X POST "https://server.smartlead.ai/api/v1/campaigns/123/leads?api_key=YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "lead_list": [
      {
        "email": "john@company.com",
        "first_name": "John",
        "last_name": "Doe",
        "company_name": "ACME Corp",
        "custom_fields": {
          "job_title": "CEO",
          "industry": "SaaS"
        }
      },
      {
        "email": "jane@startup.io",
        "first_name": "Jane",
        "last_name": "Smith",
        "company_name": "Startup Inc"
      }
    ],
    "settings": {
      "ignore_duplicate_leads_in_other_campaign": false,
      "return_lead_ids": true
    }
  }'

import requests
import csv

API_KEY = "YOUR_API_KEY"
campaign_id = 123

# Example 1: Add leads with custom fields
leads = [
    {
        "email": "john@company.com",
        "first_name": "John",
        "last_name": "Doe",
        "company_name": "ACME Corp",
        "custom_fields": {
            "job_title": "CEO",
            "industry": "SaaS",
            "company_size": "50-200"
        }
    },
    {
        "email": "jane@startup.io",
        "first_name": "Jane",
        "last_name": "Smith",
        "company_name": "Startup Inc",
        "linkedin_profile": "https://linkedin.com/in/janesmith"
    }
]

payload = {
    "lead_list": leads,
    "settings": {
        "ignore_duplicate_leads_in_other_campaign": False,
        "ignore_global_block_list": False,
        "return_lead_ids": True
    }
}

response = requests.post(
    f"https://server.smartlead.ai/api/v1/campaigns/{campaign_id}/leads",
    params={"api_key": API_KEY},
    json=payload
)

if response.status_code == 200:
    result = response.json()
    print(f"✅ Added {result.get('added_count', 0)} leads")
    if result.get('lead_ids'):
        print(f"Lead IDs: {result['lead_ids']}")

# Example 2: Import from CSV
def import_csv_to_campaign(csv_path, campaign_id):
    leads = []
    
    with open(csv_path, 'r') as f:
        reader = csv.DictReader(f)
        for row in reader:
            lead = {
                "email": row['email'],
                "first_name": row.get('first_name', ''),
                "last_name": row.get('last_name', ''),
                "company_name": row.get('company', ''),
                "custom_fields": {
                    k: v for k, v in row.items() 
                    if k not in ['email', 'first_name', 'last_name', 'company']
                }
            }
            leads.append(lead)
            
            # Batch every 400 leads (max per request)
            if len(leads) >= 400:
                add_leads_batch(campaign_id, leads)
                leads = []
    
    # Add remaining leads
    if leads:
        add_leads_batch(campaign_id, leads)

def add_leads_batch(campaign_id, leads):
    payload = {"lead_list": leads}
    response = requests.post(
        f"https://server.smartlead.ai/api/v1/campaigns/{campaign_id}/leads",
        params={"api_key": API_KEY},
        json=payload
    )
    print(f"Batch added: {len(leads)} leads")

const API_KEY = 'YOUR_API_KEY';
const campaignId = 123;

// Add leads to campaign
async function addLeads(campaignId, leads, settings = {}) {
  const payload = {
    lead_list: leads,
    settings: {
      ignore_duplicate_leads_in_other_campaign: false,
      return_lead_ids: true,
      ...settings
    }
  };
  
  const response = await fetch(
    `https://server.smartlead.ai/api/v1/campaigns/${campaignId}/leads?api_key=${API_KEY}`,
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(payload)
    }
  );
  
  const result = await response.json();
  console.log(`Added ${result.added_count} leads`);
  return result;
}

// Example usage
const newLeads = [
  {
    email: 'john@company.com',
    first_name: 'John',
    last_name: 'Doe',
    company_name: 'ACME Corp',
    custom_fields: {
      job_title: 'CEO',
      industry: 'SaaS'
    }
  }
];

await addLeads(123, newLeads);

{
  "success": true,
  "added_count": 2,
  "skipped_count": 0,
  "lead_ids": [789, 790],
  "message": "Leads added successfully"
}

{
  "error": "lead_list cannot exceed 400 leads per request",
  "provided_count": 500,
  "max_allowed": 400
}