I am trying to create a post that can take in more than one record at a time. I am hitting a bit of a brick wall and was hoping someone could help me with an answer. how would I allow this to take in multiple employee records together.

    public static HttpResponse PostEmployeeCallout(){
        http http = new http ();
        HttpRequest request = new HttpRequest();
        //Set the Endpoint of the Post callout
        request.setEndpoint('https://sfdnewhires.herokuapp.com/api/v3/employees');
        //Set the method to be a post callout
        request.setMethod('POST');
        //declairing the header type and the format of the response
        request.setHeader('Content-Type', 'application/json;charset=UTF-8');
        list <object> employees = (List<Object>) results.get('employees');
        request.setBody(body);
        HttpResponse response = http.send(request);       
    }
    public class body{
        String Name {get;set;}
        String hire_Date {get;set;}
        String position {get;set;}
        String email {get;set;}
        Integer phone {get;set;}
        String functional_area {get;set;}
        String Location {get;set;}
        String type {get;set;}
    }
    public body(String Name, String hire_Date, String position, String email, Integer phone, String functional_area, String Location, String type){
        this.name = name;
        this.hire_date = hire_Date;
        this.position = position;
        this.email = email;
        this.phone = phone;
        this.functional_area = functional_area;
        this. location = Location;
        this.type = type;
    }
}