feat: 지원자 API 와 구글 스프레드 시트 연동

Author: hodoon

src/main/java/dmu/dasom/api/domain/applicant/service/ApplicantServiceImpl.java

@@ -8,24 +8,50 @@
 import dmu.dasom.api.domain.applicant.repository.ApplicantRepository;
 import dmu.dasom.api.domain.common.exception.CustomException;
 import dmu.dasom.api.domain.common.exception.ErrorCode;
+import dmu.dasom.api.domain.google.service.GoogleApiService;
 import dmu.dasom.api.global.dto.PageResponse;
 import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
 @RequiredArgsConstructor
 @Service
 public class ApplicantServiceImpl implements ApplicantService {
 
     private final static int DEFAULT_PAGE_SIZE = 20;
 
     private final ApplicantRepository applicantRepository;
+    private final GoogleApiService googleApiService;
+
+    @Value("${google.spreadsheet.id}")
+    private String spreadsheetId;
 
     // 지원자 저장
     @Override
     public void apply(final ApplicantCreateRequestDto request) {
-        applicantRepository.save(request.toEntity());
+        Applicant applicant = applicantRepository.save(request.toEntity());
+
+        // 스프레드 시트에 기록할 데이터
+        List<List<Object>> values = List.of(List.of(
+                applicant.getId(),
+                applicant.getStudentNo(),
+                applicant.getContact(),
+                applicant.getEmail(),
+                applicant.getGrade(),
+                applicant.getReasonForApply(),
+                applicant.getActivityWish(),
+                applicant.getIsPrivacyPolicyAgreed(),
+                applicant.getCreatedAt(),
+                applicant.getUpdatedAt()
+        ));
+
+        String range = "Sheet1!A:J";
+
+        googleApiService.writeToSheet(spreadsheetId, range, values);
     }
 
     // 지원자 조회

src/main/java/dmu/dasom/api/domain/google/service/GoogleApiService.java

@@ -5,6 +5,7 @@
 import com.google.api.client.json.jackson2.JacksonFactory;
 
 import com.google.api.services.sheets.v4.Sheets;
+import com.google.api.services.sheets.v4.model.AppendValuesResponse;
 import com.google.api.services.sheets.v4.model.UpdateValuesResponse;
 import com.google.api.services.sheets.v4.model.ValueRange;
 import com.google.auth.Credentials;
@@ -56,17 +57,18 @@ public void writeToSheet(String spreadsheetId, String range, List<List<Object>>
         try {
             Sheets service = getSheetsService();
             ValueRange body = new ValueRange().setValues(values);
-            UpdateValuesResponse result = service.spreadsheets().values()
-                    .update(spreadsheetId, range, body)
+            AppendValuesResponse response = service.spreadsheets().values()
+                    .append(spreadsheetId, range, body)
                     .setValueInputOption("USER_ENTERED")
+                    .setInsertDataOption("INSERT_ROWS")
                     .execute();
-            logger.info("Updated rows: {}", result.getUpdatedRows());
-        }  catch (IOException e) {
-            logger.error("Failed to write data to the spreadsheet", e);
-            throw new CustomException(ErrorCode.WRITE_FAIL);
+            logger.info("Appended rows: {}", response.getUpdates().getUpdatedRows());
         } catch (GeneralSecurityException e) {
-            logger.error("Failed to write data to the spreadsheet", e);
+            logger.error("Failed to write data to the spreadsheet due to security issues", e);
             throw new CustomException(ErrorCode.INTERNAL_SERVER_ERROR);
+        } catch (IOException e) {
+            logger.error("Failed to write data to the spreadsheet due to IO issues", e);
+            throw new CustomException(ErrorCode.WRITE_FAIL);
         }
     }