3.5Combining grep, curl, and jq

The real power comes from combining these tools:

# Check API health and alert on non-200
STATUS=$(curl -s -o /dev/null -w "%{http_code}" https://api.example.com/health)
[ "$STATUS" -ne 200 ] && echo "API is down! Status: $STATUS"

# Find all admin users and count them
curl -s https://api.example.com/users | jq '[.[] | select(.role == "admin")] | length'

# Search API response for specific data
curl -s https://api.example.com/products | jq '.[] | select(.name | test(".*phone.*"; "i"))'

# Monitor endpoint response times in a loop
while true; do
  TIME=$(curl -s -o /dev/null -w "%{time_total}" https://api.example.com/health)
  echo "$(date): ${TIME}s"
  sleep 10
done