POJO Classes — Request and Response Models

package com.company.api.pojo.request;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonInclude;

@JsonInclude(JsonInclude.Include.NON_NULL)
public class CreateUserRequest {

    private String name;
    private String email;
    private String phone;

    @JsonProperty("job_title")
    private String jobTitle;

    // No-arg constructor — required by Jackson
    public CreateUserRequest() {}

    // All-arg constructor — convenient for tests
    public CreateUserRequest(String name, String email,
                             String phone, String jobTitle) {
        this.name = name;
        this.email = email;
        this.phone = phone;
        this.jobTitle = jobTitle;
    }

    // Getters and Setters
    public String getName() { return name; }
    public void setName(String name) { this.name = name; }

    public String getEmail() { return email; }
    public void setEmail(String email) { this.email = email; }

    public String getPhone() { return phone; }
    public void setPhone(String phone) { this.phone = phone; }

    public String getJobTitle() { return jobTitle; }
    public void setJobTitle(String jobTitle) { this.jobTitle = jobTitle; }
}

package com.company.api.pojo.response;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;

@JsonIgnoreProperties(ignoreUnknown = true)
public class UserResponse {

    private int id;
    private String name;
    private String email;
    private String phone;

    @JsonProperty("job_title")
    private String jobTitle;

    @JsonProperty("created_at")
    private String createdAt;

    // No-arg constructor
    public UserResponse() {}

    // Getters
    public int getId() { return id; }
    public String getName() { return name; }
    public String getEmail() { return email; }
    public String getPhone() { return phone; }
    public String getJobTitle() { return jobTitle; }
    public String getCreatedAt() { return createdAt; }

    // Setters
    public void setId(int id) { this.id = id; }
    public void setName(String name) { this.name = name; }
    public void setEmail(String email) { this.email = email; }
    public void setPhone(String phone) { this.phone = phone; }
    public void setJobTitle(String jobTitle) { this.jobTitle = jobTitle; }
    public void setCreatedAt(String createdAt) { this.createdAt = createdAt; }

    @Override
    public String toString() {
        return "UserResponse{id=" + id + ", name='" + name + "', email='" + email + "'}";
    }
}

// Creating a request body — clean and type-safe
CreateUserRequest request = new CreateUserRequest(
    "Rahul Sharma",
    "rahul@example.com",
    "9876543210",
    "QA Engineer"
);

// REST Assured serializes it to JSON automatically
Response response = given()
    .spec(requestSpec)
    .body(request)          // Jackson converts POJO to JSON
.when()
    .post("/users");

// Deserializing the response — type-safe access
UserResponse user = response.as(UserResponse.class);
System.out.println(user.getName());      // "Rahul Sharma"
System.out.println(user.getId());        // 42
System.out.println(user.getCreatedAt()); // "2024-03-15T10:30:00Z"