Postman API Call hanya "1"/Blank di body

Bagaiman Cara mengatasi problem seperti ini pada postman ?

Capture1.PNG

My package com.bittama.customer.controllers @Post

@PostMapping("/customers")
    public ResponseEntity<List<Customer>> testArrayOfValues(
            @RequestBody List<Customer> customer) {
        try {
            Customer newCustomer = new Customer();
            newCustomer.setId(UUID.randomUUID().toString());
            newCustomer.setName(((Customer) customer).getName());
            newCustomer.setAddress(((Customer) customer).getAddress());
            newCustomer.setEmail(((Customer) customer).getEmail());
            newCustomer.setPhone(((Customer) customer).getPhone());
            List<Customer> List1 = List.of(newCustomer);

            return new ResponseEntity<>(customerRepository.saveAll(List1), HttpStatus.CREATED);
        } catch (Exception e) {
            return new ResponseEntity<>(null, HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }

My package com.bittama.customer.entities

package com.bittama.customer.entities;

    import java.io.Serializable;
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import lombok.Getter;
    import lombok.Setter;

    @Getter
    @Setter
    @Entity
    public class Customer implements Serializable {

	private static final long serialVersionUID = 1L;
	@Id
    private String id;
    private String  name;
    private String address;
    private String email;
    private String phone;
    }

My package com.bittama.customer.repositories

ackage com.bittama.customer.repositories;

    import com.bittama.customer.entities.Customer;
    import java.util.List;
    import org.springframework.data.jpa.repository.JpaRepository;

    public interface CustomerRepository extends JpaRepository<Customer, String> {

    public List<Customer> findByNameContaining(String name);

    }