First REST API with Spring Boot

After finish generate your application, you might see the structure of your application similar like this.

If you yes, you're good to go to the next step. Well done!

Generate First GET API

We'll create first GET API on this project, with requirements:

• path "/common",
• the response contains 2(two) properties, success and message

1. Before we jump into generate path, we might need to create 2 classes (you can see the sample code below),

• src/main/com/alibaihaqi/springboot/springapp/CommonController.java

package com.alibaihaqi.springboot.springapp;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class CommonController {

    /**
     * @return: Common -> { success: boolean, message: string }
     */
    @GetMapping("/common") // Path Implementation
    public Common commonResponse() {
        return new Common(true, "Success from common controller Java!");
    }
}

• src/main/com/alibaihaqi/springboot/springapp/Common.java

package com.alibaihaqi.springboot.springapp;

public class Common {
    private Boolean success;
    private String message;

    public Common(Boolean success, String message) {
        super();
        this.success = success;
        this.message = message;
    }

    @Override
    public String toString() {
        return "Common{" +
                "success=" + success +
                ", message='" + message + '\'' +
                '}';
    }

    public Boolean getSuccess() {
        return success;
    }

    public String getMessage() {
        return message;
    }
}

2. You can use the helper to generate constructor, getter, setter, toString, etc.
3. Setting your runner configuration

4. Run your application! (by clicking the play button)
5. Test your response through http://localhost:<port>/common

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CONGRATULATIONS FOR YOUR FIRST API!