ApiController.java

package apiservice.service;

import apiservice.model.Asset;
import apiservice.service.ApiService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/assets/")
public class ApiController {

        private final ApiService service;

        @Autowired
    public ApiController(ApiService service) {
        this.service = service;
    }

    @GetMapping(produces = {MediaType.APPLICATION_JSON_VALUE})
    public ResponseEntity<List<Asset>> getAssets(@RequestParam(name ="uid") String uid) {

            List<Asset> assets = service.getAssets(uid);

            return new ResponseEntity<>(assets, HttpStatus.OK);
    }

    @PostMapping(produces = {MediaType.APPLICATION_JSON_VALUE})
    public void postAsset(@RequestBody() Asset asset, @RequestParam(name = "uid") String uid) {
            service.saveAsset(asset,uid);
    }
}