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How to internally call another restapi endpoint in quarkus controller class?

I need to call another rest api endpoint inside the controller class to provide filtered user list as a result. I can't find a way to call one rest api from another rest api.Controller class
This is my controller class method code:
#GET
#Path("/filter")
#Produces(MediaType.APPLICATION_JSON)
public Response filterByName(#QueryParam("page") int page, #QueryParam("first_name") String first_name,
#QueryParam("last_name") String last_name) {
try{
String uri = "https://reqres.in/api/users?page="+page;
//Flux<User1> users = restTemplate.getForObject(uri, User1.class);
Mono<List<User1>> result = users.filter(user-> user.getFirst_name().equals(first_name) && user.getLast_name().equals(last_name)).collectList();
return Response.ok(result).build();
}catch(Exception e) {
e.printStackTrace();
return Response.status(204).build();
}
}
My issue got resolved, I used microprofile rest client to create a proxy and called the endpoint from there. Thanks!

Take a look at the HttpClient class in java.
https://docs.oracle.com/en/java/javase/12/docs/api/java.net.http/java/net/http/HttpClient.html

RestAssured: How can I get the RequestSpecification fields or parameters after sending a request?

I'm doing cucumber bdd tests i have a class [MyClient] that wraps restassured methods and I have multiple classes that calls [MyClient].
I can do methods like put, post etc. just fine but I am wondering whether there is a way for me to get the actual request fields (header, body...) sent after doing the request.
I also dont have any problems getting and parsing the response but I'm unable to get the request sent.
Considering the following, I can call the sendPostRequest() that will store the RequestSpecification instance to a field called request and I can fetch it anytime by calling the getter. However, I cannot take the individual fields from the RequestSpecification object. From the debugger, I can see the fields just fine so I was thinking there has to be some clean way for me to get it.
I've already tried log() but it doesnt seem to give me what I need.
Any help is appreciated!!
CALLING CLASS:
public class MyInterfaceSteps() {
private myClient = new MyClient();
public sendPostRequest(){
myClient.post(someHeaders, someBody, someUrl);
}
}
CLIENT CLASS:
public class MyClient() {
private RequestSpecification request;
private Response response;
public getRequest() {
return request;
}
public getResponse() {
return response;
}
public Response post(Map<String, String> headers, String body, String url) {
request = given().headers(headers).contentType(ContentType.JSON).body(body);
response = request.post(url);
}
}

You create a filter (https://github.com/rest-assured/rest-assured/wiki/Usage#filters) which gives you access to FilterableRequestSpecification (http://static.javadoc.io/io.rest-assured/rest-assured/3.0.3/io/restassured/specification/FilterableRequestSpecification.html) from which you can get (and modify) e.g. headers and body etc. The filter could store these values to a datastructure of your choice.

Extracting parameters from URL with POST method

I have something like this :
#RestController
#RequestMapping("/prop")
public class PropController {
#RequestMapping(method = RequestMethod.POST)
public Prop getProp(#ModelAttribute PropForm propForm) {
//calling methods and stuff using propForm
}
}
My PropForm class :
#Data
public class PropForm {
private String att1;
private String att2;
private String att3;
}
Now I am calling this URL :
http://localhost:8080/prop?att1=blabla&att2=blob&att3=test
I want to extract the parameters from the URL and put them in my propForm.
I've tried replacing #ModelAttribute by #RequestBody and then by #RequestParam. It's still not working, I always get a NullPointerException when running the application.
Please, note that I need to use POST method. I already have it working using GET method

FIRST Make sure you have getters and setters in your PropForm class...
Then, you need to put into your model the Form entity:
model.put("NAME", propForm);
And declare method like this:
#RequestMapping(method = RequestMethod.POST)
public Prop getProp(
#ModelAttribute PropForm propForm
#Valid #ModelAttribute("NAME") PropForm propForm)
// ^ you're missing the name!
{
// do your stuff....
return (Prop) propForm;
}

I think you controller and mapping is ok.
But the problem is you are expecting a post request in the mapping, and you are calling
http://localhost:8080/prop?att1=blabla&att2=blob&att3=test
Now this will generate a GET request Not Post. You cannot send a post request using only url.
If you cant use a form for sending the request then you need to use any 3rd party to generate a POST request
like you can use jquery $.post()
And also att1 att2 will not help unless you bind the object with the model attribute.

Finding a method exists in rest service or not in Java

Hi i am new to Rest Service in Java. First i want to explain my problem and then at the end i will be asking question.
I am using Mozilla rest CLIENT. My rest class looks like:
#Path("/api1")
public class RestService {
#POST
#Path("/v1")
#Consumes("application/json")
#Produces("application/json")
public String v1(String json){
//Some code here
}
#POST
#Path("/v2")
#Consumes("application/json")
#Produces("application/json")
public String v2(String json){
//Some code here
}
}
Now in this code i have two functions.
To access v1, call will be:
http://localhost:8080/project_name/package/api1/v1
To access v2 call will be:
http://localhost:8080/project_name/package/api1/v2
Question:
Now in my rest service class i want to add a patch of code which detects that whether any function which has been called either v1,v2 or v3 exists in this service or not?
Can i do this? Or anyother way to do this?
Thanks

Well, you could add a wildcard response:
#POST
#Path("/{what}")
#Consumes("application/json")
#Produces("application/json")
public String v2(String json, #PathParameter("what") String what){
return "The path "+what+" does not exist.";
}
However, since the user will never see the direct responses, you can answer with a customized 404:
#POST
#Path("/{what}")
#Consumes("application/json")
#Produces("application/json")
public Response v2(String json, #PathParameter("what") String what){
return Response.status(Status.NOT_FOUND).entity("The path "+what+" does not exist.");
}
This way you can also detect on the client side when something is incorrect.

The best approach for you is to add a fallback response. That will be called when somebody tries to access any non existing WS method.
#RequestMapping(value = {"*"})
public String getFallback()
{
return "This is a fallback response!";
}

How to handle Backgrid.js cell edition requests

I am working with Backgrid these days.
Trying to edit a row value and to persist the database object, I end up with the following HTTP error:
NetworkError: 405 Method Not Allowed - http:// localhost:8084/fsrtool/api/roles/5
My web application driven by a Java Spring backend.
The Backgrid frontend is supposed to call the following method:
#GET
#Path("/{id}")
#Produces(MediaType.APPLICATION_JSON)
#Override
public Role getById(#PathParam("id") Long id) {
LOG.info("get a role with its ID");
Role r = rds.getById(id);
return r;
}
I know that my service class is working, because I am able to create new 'Roles' from the Backgrid table and thanks to the following method:
#POST
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
#Override
public Response create(final Role r) {
return Response.status(Status.CREATED).entity(rds.getOrSave(r)).build();
}
Investigating the problem, I figured out that backgrid sent the request with PUT method.
I then tried several changes into my service class in order to handle this request, but I have not been able to find the good way of setting this up.
Would you know how Backgrid cells should be edited?

So, as the application I'm working on seems to be designed, I actually was not using the good library...
The way I need my service method to be:
#PUT
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
#Path("/{id}")
public Response update(final Role r, #PathParam("id") Long id) {
// do some processing... save to the db
}