Send a WhatsApp message with cURL

# 1. Check connectivity (public endpoint, no key needed)
curl https://public.leadpattern.com/health-check

# 2. Keep your key in an environment variable (YOUR_API_KEY, starts with lp_)
export LEADPATTERN_API_KEY="YOUR_API_KEY"

# Every request then sends:
#   Authorization: $LEADPATTERN_API_KEY     <- raw key, NO "Bearer " prefix
#   Content-Type: application/json

curl -X POST https://public.leadpattern.com/v2/whatsapp/message/template \
  -H "Authorization: $LEADPATTERN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "messages": [
      {
        "to": "+91XXXXXXXXXX",
        "content": {
          "templateName": "order_confirmation",
          "language": "en",
          "templateData": {
            "body": { "placeholders": [ { "name": "Customer" }, { "order_id": "ORD-1234" } ] }
          }
        }
      }
    ]
  }'

# v1 alternative — positional placeholders, matched in order:
curl -X POST https://public.leadpattern.com/whatsapp/message/template \
  -H "Authorization: $LEADPATTERN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"messages":[{"to":"+91XXXXXXXXXX","content":{"templateName":"order_confirmation","language":"en","templateData":{"body":{"placeholders":["Customer","ORD-1234"]}}}}]}'

{
  "type": "success",
  "data": {
    "messages": [
      {
        "status": "SENT",
        "recipient": "91XXXXXXXXXX",
        "messageId": "wamid.abc123"
      }
    ]
  }
}

# Free-form text — only works within 24 hours of the customer's last message.
curl -X POST https://public.leadpattern.com/whatsapp/message/text \
  -H "Authorization: $LEADPATTERN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to":"+91XXXXXXXXXX","content":{"text":"Hello! How can I help you?","previewUrl":false}}'

{
  "type": "success",
  "data": {
    "messageId": "wamid.abc123",
    "status": "sent",
    "recipient": "91XXXXXXXXXX"
  }
}

# -i prints the HTTP status line and headers, so you can see 201 / 403 / 429 and Retry-After
curl -i -X POST https://public.leadpattern.com/whatsapp/message/text \
  -H "Authorization: $LEADPATTERN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to":"+91XXXXXXXXXX","content":{"text":"Test"}}'

# Print only the status code:
curl -s -o /dev/null -w "%{http_code}\n" -X POST https://public.leadpattern.com/whatsapp/message/text \
  -H "Authorization: $LEADPATTERN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to":"+91XXXXXXXXXX","content":{"text":"Test"}}'

{
  "type": "error",
  "code": 403,
  "message": "Cannot send a free-form message. The 24-hour customer service window has expired. You may only send template messages after 24 hours of the last user message."
}