azure logic app request trigger url is not working from RestTemplate java but working in postman

Question

I have Azure logic app with request trigger. I want to trigger this logic app from my java application. So, I am trying to call the request trigger url from my java API.

It is working fine if i am hitting in postman, logic app with request trigger hitting via postman

but getting 401 on calling it using RestTemplate in java.

import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

@RestController
public class SampleController {
    @RequestMapping(value="/display",method = RequestMethod.GET)
    public ResponseEntity<String> display()
    {
        System.out.println("entered");
        RestTemplate restTemplate = new RestTemplate();
        String url = "https://pt-38.northeurope.logic.azure.com/workflows/cc0363a3bf134efca43b0bd2d15d5ed5/triggers/manual/paths/invoke?api-version=2016-10-01&sp=%2Ftriggers%2Fmanual%2Frun&sv=1.0&sig=HnllGcN9xo91kRGAjk";

        HttpHeaders headers = new HttpHeaders();
        headers.set("api-version", "2016-10-01");
        headers.set("sp", "%2Ftriggers%2Fmanual%2Frun");
        headers.set("sv", "1.0");
        headers.set("sig", "HnllGcN9xo91kRGAjk3Zlp6fW0dhwf");
        HttpEntity request = new HttpEntity(headers);
        ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.GET, request, String.class);
//        JSONObject obj = new JSONObject(response.getBody());
//        System.out.println("obj");
        return response;
    }
}

logic app with request trigger accessing via rest template

As per Hury Shen suggestion i changed api code as below,

public HttpEntity<String> display1()
    {
        System.out.println("entered");
        RestTemplate restTemplate = new RestTemplate();
        String url = "https://prod-38.northeurope.logic.azure.com/workflows/cc0363a3bf134efca43b0bd2d15d5ed5/triggers/manual/paths/invoke?api-version=2016-10-01&sp=%2Ftriggers%2Fmanual%2Frun&sv=1.0&sig=HnllGcN9xo91kRGAjk3Zlp6fW0dhwfaRij-fk1CC60c";
        HttpHeaders headers = new HttpHeaders();
        headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
        UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url)
                .queryParam("api-version", "2016-10-01")
                .queryParam("sp", "%2Ftriggers%2Fmanual%2Frun")
                .queryParam("sv", "1.0")
                .queryParam("sig", "HnllGcN9xo91kRGAjk3Zlp6fW0dhwfaRij-fk1CC60c");
        HttpEntity<?> entity = new HttpEntity<>(headers);
        HttpEntity<String> response = restTemplate.exchange(
                builder.toUriString(),
                HttpMethod.GET,
                entity,
                String.class);
        return response;
    }

Getting below exception,

Answer 1

For this problem, we should put the value of api-version, sp, sv and sig in query parameters instead of put them in headers.

Do it like this:

Map<String, String> params = new HashMap<String, String>();
params.put("api-version", "xxxx");
params.put("sp", "xxxxx");
params.put("sv", "xxx");
params.put("sig", "xxxxxxx");
.....
ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.GET, request, String.class, params);