[BE] feat: 회원 수 조회

backend/src/main/java/org/donggle/backend/MemberCount.java

@@ -0,0 +1,35 @@
+package org.donggle.backend;
+
+import org.donggle.backend.application.repository.MemberRepository;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@Controller
+@RequestMapping("/count")
+public class MemberCount {
+    private final MemberRepository memberRepository;
+
+    public MemberCount(final MemberRepository memberRepository) {
+        this.memberRepository = memberRepository;
+    }
+
+    @GetMapping
+    public ResponseEntity<Integer> asdasdads() {
+        final int i = memberRepository.countMember();
+        return ResponseEntity.ok(i);
+    }
+
+    @GetMapping("add")
+    public ResponseEntity<Integer> asdasd() {
+        final int i1 = memberRepository.addWritings();
+        return ResponseEntity.ok(i1);
+    }
+
+    @GetMapping("published")
+    public ResponseEntity<Integer> asdasdad() {
+        final int pcount = memberRepository.pcount();
+        return ResponseEntity.ok(pcount);
+    }
+}

backend/src/main/java/org/donggle/backend/application/repository/MemberRepository.java

@@ -3,9 +3,33 @@
 import org.donggle.backend.domain.member.Member;
 import org.donggle.backend.domain.oauth.SocialType;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
 
 import java.util.Optional;
 
 public interface MemberRepository extends JpaRepository<Member, Long> {
     Optional<Member> findBySocialIdAndSocialType(final Long socialId, final SocialType socialType);
+
+    @Query("""
+            SELECT COUNT(*) AS memberCount
+            FROM Member
+            WHERE Member.createdAt >= '2023-08-19 00:00:00'
+            """)
+    int countMember();
+
+    @Query(value = """
+            SELECT COUNT(DISTINCT m.id)
+            FROM member m
+            JOIN writing w ON m.id = w.member_id
+            """, nativeQuery = true)
+    int addWritings();
+
+    @Query(value = """
+            SELECT COUNT(DISTINCT w.member_id)
+            FROM blog_writing bw
+            JOIN writing w ON bw.writing_id = w.id
+            WHERE bw.published_at IS NOT NULL
+            """, nativeQuery = true)
+    int pcount();
+
 }