curl -X POST "http://localhost:8000/v1/whlg/eligible" \
     -H "Content-Type: application/json" \
     -d '{"postcode": "B93 8SY"}'

curl -X POST "http://localhost:8000/v1/whlg/eligible" \
     -H "Content-Type: application/json" \
     -d '{"postcode": "BN15 0FD"}'

curl -X POST "http://localhost:8000/v1/whlg/eligible" \
     -H "Content-Type: application/json" \
     -d '{"postcode": "DY6 0LB"}'