curl --request GET \
  --url https://api.postcode.gov.ng/v1/lookup \
  --header 'X-API-Key: <api-key>'

{
  "data": {
    "postcode": "<string>",
    "valid": true,
    "administrative_address": {},
    "recent_house_address": {},
    "building_use_status": "<string>",
    "other_building_info": {},
    "point_geometry": {}
  }
}