basic crud operations for metrological controller

src/main/java/com/api/air_quality/controller/MetrologicalController.java

@@ -1,4 +1,60 @@
 package com.api.air_quality.controller;
 
+import com.api.air_quality.dto.ApiResponse;
+import com.api.air_quality.model.MetrologicalModel;
+import com.api.air_quality.repository.MetrologicalRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Optional;
+
+@RestController
 public class MetrologicalController {
+    @Autowired
+    MetrologicalRepository metrologicalRepository;
+
+    @PostMapping("/api/v1/saveMetrological")
+    public ResponseEntity<ApiResponse> saveMetrological(@RequestBody MetrologicalModel metrologicalModel) {
+        metrologicalRepository.save(metrologicalModel);
+
+        ApiResponse response = new ApiResponse("Saved "+metrologicalModel.getId()+" successfully");
+        return ResponseEntity.ok(response);
+    }
+
+    @GetMapping("/api/v1/getAllMetrological")
+    public List<MetrologicalModel> getAllMetrological() {
+        return metrologicalRepository.findAll();
+    }
+
+    @GetMapping("/api/v1/getMetrologicalById/{id}")
+    public Optional<MetrologicalModel> getMetrological(@PathVariable String id) {
+        return metrologicalRepository.findById(id);
+    }
+
+    @DeleteMapping("/api/v1/deleteMetrological/{id}")
+    public ResponseEntity<ApiResponse> deleteMetrological(@PathVariable String id) {
+        metrologicalRepository.deleteById(id);
+
+        ApiResponse response = new ApiResponse("Deleted Code:"+id+" successfully");
+        return ResponseEntity.ok(response);
+    }
+
+    @PutMapping("/api/v1/updateMetrological/{id}")
+    public ResponseEntity<ApiResponse> updateMetrological(@PathVariable String id, @RequestBody MetrologicalModel metrologicalModel) {
+        Optional<MetrologicalModel> selectedMetrological = metrologicalRepository.findById(id);
+
+        if (selectedMetrological.isPresent()){
+            MetrologicalModel m = selectedMetrological.get();
+
+            m.setLocation(metrologicalModel.getLocation());
+            m.setLand_type(metrologicalModel.getLand_type());
+
+            metrologicalRepository.save(m);
+        }
+
+        ApiResponse response = new ApiResponse("Updated Code:"+id+" successfully");
+        return ResponseEntity.ok(response);
+    }
 }