scrap 여부 확인 API추가

src/main/kotlin/com/deterior/domain/member/dto/ScrapCheckResponse.kt

@@ -0,0 +1,6 @@
+package com.deterior.domain.member.dto
+
+data class ScrapCheckResponse(
+    val check: Boolean,
+    val username: String,
+)

src/main/kotlin/com/deterior/domain/scrap/controller/ScrapController.kt

@@ -1,14 +1,18 @@
 package com.deterior.domain.scrap.controller
 
+import com.deterior.domain.member.dto.ScrapCheckResponse
+import com.deterior.domain.scrap.dto.ScrapHandleDto
 import com.deterior.domain.scrap.dto.ScrapRequest
 import com.deterior.domain.scrap.dto.ScrapResponse
 import com.deterior.domain.scrap.service.ScrapService
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.http.ResponseEntity
 import org.springframework.stereotype.Controller
+import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.PostMapping
 import org.springframework.web.bind.annotation.RequestBody
 import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestParam
 
 @RequestMapping("/api")
 @Controller
@@ -21,4 +25,13 @@ class ScrapController @Autowired constructor(
         val dto = scrapService.doLike(scrapRequest.toHandleDto())
         return ResponseEntity.ok(dto.toResponse())
     }
+
+    @GetMapping("/scrap/check")
+    override fun checkScrap(
+        @RequestParam boardId: Long,
+        @RequestParam username: String
+    ): ResponseEntity<ScrapCheckResponse> {
+        val result = scrapService.isLike(ScrapHandleDto(boardId, username))
+        return ResponseEntity.ok(ScrapCheckResponse(result, username))
+    }
 }

src/main/kotlin/com/deterior/domain/scrap/controller/ScrapControllerSwagger.kt

@@ -1,11 +1,14 @@
 package com.deterior.domain.scrap.controller
 
+import com.deterior.domain.member.dto.ScrapCheckResponse
 import com.deterior.domain.scrap.dto.ScrapRequest
 import com.deterior.domain.scrap.dto.ScrapResponse
 import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.Parameter
 import io.swagger.v3.oas.annotations.tags.Tag
 import org.springframework.http.ResponseEntity
 import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestParam
 
 @Tag(name = "스크랩 API")
 interface ScrapControllerSwagger {
@@ -14,4 +17,15 @@ interface ScrapControllerSwagger {
     fun pushScrap(
         @RequestBody scrapRequest: ScrapRequest
     ): ResponseEntity<ScrapResponse>
+
+    @Operation(summary = "스크랩 여부 확인 \uD83D\uDD12",
+        parameters = [
+            Parameter(name = "boardId", description = "게시글 아이디", required = true),
+            Parameter(name = "username", description = "사용자 아이디", required = true),
+        ]
+    )
+    fun checkScrap(
+        @RequestParam boardId: Long,
+        @RequestParam username: String
+    ): ResponseEntity<ScrapCheckResponse>
 }

src/main/kotlin/com/deterior/domain/scrap/service/ScrapService.kt

@@ -7,4 +7,5 @@ interface ScrapService {
 //    fun pushLike(scrapHandleDto: ScrapHandleDto): ScrapDto
 //    fun undoLike(scrapHandleDto: ScrapHandleDto): ScrapDto
     fun doLike(scrapHandleDto: ScrapHandleDto): ScrapDto
+    fun isLike(scrapHandleDto: ScrapHandleDto): Boolean
 }

src/main/kotlin/com/deterior/domain/scrap/service/ScrapServiceImpl.kt

@@ -22,6 +22,11 @@ class ScrapServiceImpl @Autowired constructor(
         scrapRepository.isScrapExists(scrapHandleDto)
             .let { if (it) return undoLike(scrapHandleDto) else return pushLike(scrapHandleDto) }
 
+    @Transactional
+    override fun isLike(scrapHandleDto: ScrapHandleDto): Boolean {
+        return scrapRepository.isScrapExists(scrapHandleDto)
+    }
+
     private fun pushLike(scrapHandleDto: ScrapHandleDto): ScrapDto {
         val board = boardRepository.findById(scrapHandleDto.boardId).get()
         val member = memberRepository.findByUsername(scrapHandleDto.username)