如何在springboot中实现一个function来创建post请求？

Question

In the Springboot project I'm currently doing,I use Postman client to send post request which includes a JSON body.Following image is relevant to that.

image

post request= http://localhost:8080/api/v1/orders

Json Body= {

"fuelType": "Petrol 95", "qty": 10000

}

Can someone help me how to do this post request(which is in the image) using a function without using postman client.

Answer 1

You can use cURL (https://curl.se/) :

curl -X POST 
    -H "Content-Type: application/json" 
    -d '{"fuelType": "Petrol 95","qty": 10000}'

but if you want to make the call from java, you can use any http client from your choice, here is an example using resttemplate:

@Data
@AllArgsConstructor
class requestDTO{
   private String fuelType;
   private Integer qty;
}

import org.springframework.web.client.RestTemplate;
...
RestTemplate restTemplate = new RestTemplate();

HttpEntity<requestDTO> request = new HttpEntity<>(new requestDTO("Petrol 95",10000));
requestDTO output = restTemplate.postForObject("http://localhost:8080/api/v1/orders", request, requestDTO.class);