좋아요 스킴 초안. Ref #1

src/main/java/io/mtudy/soundcloud/like/application/inputs/CreateLikeInput.java

@@ -0,0 +1,27 @@
+package io.mtudy.soundcloud.like.application.inputs;
+
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.NotBlank;
+
+@NoArgsConstructor
+public class CreateLikeInput {
+    @NotBlank
+    private String type;
+
+    @NotBlank
+    private String typeId;
+
+    public CreateLikeInput(String type, String typeId) {
+        this.type = type;
+        this.typeId = typeId;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public String getTypeId() {
+        return typeId;
+    }
+}

src/main/java/io/mtudy/soundcloud/like/application/interfaces/web/graphql/CreateLikeMutationResolver.java

@@ -0,0 +1,22 @@
+package io.mtudy.soundcloud.like.application.interfaces.web.graphql;
+
+import graphql.kickstart.tools.GraphQLMutationResolver;
+import io.mtudy.soundcloud.like.application.inputs.CreateLikeInput;
+import io.mtudy.soundcloud.like.application.services.CreateLikeService;
+import io.mtudy.soundcloud.like.domain.entities.Like;
+import org.springframework.stereotype.Component;
+
+import javax.validation.Valid;
+
+@Component
+public class CreateLikeMutationResolver implements GraphQLMutationResolver {
+    private final CreateLikeService service;
+
+    public CreateLikeMutationResolver(CreateLikeService service) {
+        this.service = service;
+    }
+
+    public Like createLike(@Valid CreateLikeInput input) {
+        return this.service.run(input);
+    }
+}

src/main/java/io/mtudy/soundcloud/like/application/interfaces/web/graphql/LikeQueryResolver.java

@@ -0,0 +1,19 @@
+package io.mtudy.soundcloud.like.application.interfaces.web.graphql;
+
+import graphql.kickstart.tools.GraphQLQueryResolver;
+import io.mtudy.soundcloud.like.application.services.FindLikeByTrackIdService;
+import io.mtudy.soundcloud.like.domain.entities.Like;
+import org.springframework.stereotype.Component;
+
+@Component
+public class LikeQueryResolver implements GraphQLQueryResolver {
+    private final FindLikeByTrackIdService service;
+
+    public LikeQueryResolver(FindLikeByTrackIdService service) {
+        this.service = service;
+    }
+
+    public Like like(String id) {
+        return this.service.run(id);
+    }
+}

src/main/java/io/mtudy/soundcloud/like/application/services/CreateLikeService.java

@@ -0,0 +1,26 @@
+package io.mtudy.soundcloud.like.application.services;
+
+import io.mtudy.soundcloud.like.application.inputs.CreateLikeInput;
+import io.mtudy.soundcloud.like.domain.entities.Like;
+import io.mtudy.soundcloud.like.domain.repotitories.LikeRepository;
+import org.springframework.stereotype.Service;
+
+import java.util.UUID;
+
+@Service
+public class CreateLikeService {
+    private final LikeRepository repository;
+
+    public CreateLikeService(LikeRepository repository) {
+        this.repository = repository;
+    }
+
+    public Like run(CreateLikeInput request) {
+        return this.repository.save(new Like(
+            UUID.randomUUID().toString(),
+            UUID.randomUUID().toString(),
+            request.getType(),
+            request.getTypeId()
+        ));
+    }
+}

src/main/java/io/mtudy/soundcloud/like/application/services/FindLikeByTrackIdService.java

@@ -0,0 +1,18 @@
+package io.mtudy.soundcloud.like.application.services;
+
+import io.mtudy.soundcloud.like.domain.entities.Like;
+import io.mtudy.soundcloud.like.domain.repotitories.LikeRepository;
+import org.springframework.stereotype.Service;
+
+@Service
+public class FindLikeByTrackIdService {
+    private final LikeRepository repository;
+
+    public FindLikeByTrackIdService(LikeRepository repository) {
+        this.repository = repository;
+    }
+
+    public Like run(String id) {
+        return this.repository.findByTrackId(id);
+    }
+}

src/main/java/io/mtudy/soundcloud/like/domain/entities/Like.java

@@ -0,0 +1,47 @@
+package io.mtudy.soundcloud.like.domain.entities;
+
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+@NoArgsConstructor
+@Entity(name = "like")
+public class Like {
+    @Id
+    @Column(columnDefinition = "VARCHAR(36)")
+    private String id;
+
+    @Column(columnDefinition = "VARCHAR(36)")
+    private String authorId;
+
+    @Column
+    private String type;
+
+    @Column
+    private String typeId;
+
+    public Like(String id, String authorId, String type, String typeId) {
+        this.id = id;
+        this.authorId = authorId;
+        this.type = type;
+        this.typeId = typeId;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public String getAuthorId() {
+        return authorId;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public String getTypeId() {
+        return typeId;
+    }
+}

src/main/java/io/mtudy/soundcloud/like/domain/repotitories/LikeRepository.java

@@ -0,0 +1,12 @@
+package io.mtudy.soundcloud.like.domain.repotitories;
+
+import io.mtudy.soundcloud.like.domain.entities.Like;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface LikeRepository extends CrudRepository<Like, String> {
+    public default Like findByTrackId(String trackId) {
+        return null;
+    }
+}

src/main/resources/schema.graphqls

@@ -12,11 +12,23 @@ type Track {
     artworkUrl: String!
 }
 
+type Like {
+    id : ID!
+    type : String!
+    typeId: String!
+}
+
 type Mutation {
     createTrack(input: CreateTrackInput!): Track
+    createLike(input: CreateLikeInput!): Like
 }
 
 input CreateTrackInput {
     title: String!
     artworkUrl: String!
 }
+
+input CreateLikeInput {
+    type: String!
+    typeId: String!
+}