category apis created

pom.xml

@@ -31,6 +31,34 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+
+		<dependency>
+			<groupId>javax.validation</groupId>
+			<artifactId>validation-api</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>io.springfox</groupId>
+			<artifactId>springfox-bean-validators</artifactId>
+			<version>2.9.2</version>
+		</dependency>
+		<dependency>
+			<groupId>io.springfox</groupId>
+			<artifactId>springfox-swagger2</artifactId>
+			<version>2.9.2</version>
+		</dependency>
+		<dependency>
+			<groupId>io.springfox</groupId>
+			<artifactId>springfox-swagger-ui</artifactId>
+			<version>2.9.2</version>
+		</dependency>
+
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+
 	</dependencies>
 
 	<build>

src/main/java/com/educative/ecommerce/common/ApiResponse.java

@@ -0,0 +1,25 @@
+package com.educative.ecommerce.common;
+
+import java.time.LocalDateTime;
+
+public class ApiResponse {
+	private final boolean success;
+	private final String message;
+
+	public ApiResponse(boolean success, String message) {
+		this.success = success;
+		this.message = message;
+	}
+
+	public boolean isSuccess() {
+		return success;
+	}
+
+	public String getMessage() {
+		return message;
+	}
+
+	public String getTimestamp() {
+		return LocalDateTime.now().toString();
+	}
+}

src/main/java/com/educative/ecommerce/config/SwaggerConfig.java

@@ -0,0 +1,38 @@
+package com.educative.ecommerce.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import springfox.documentation.builders.ApiInfoBuilder;
+import springfox.documentation.builders.PathSelectors;
+import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.service.ApiInfo;
+import springfox.documentation.service.Contact;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.spring.web.plugins.Docket;
+import springfox.documentation.swagger2.annotations.EnableSwagger2;
+
+@Configuration
+@EnableSwagger2
+public class SwaggerConfig {
+	@Bean
+    public Docket productApi() {
+        return new Docket(DocumentationType.SWAGGER_2)
+        		.apiInfo(getApiInfo())
+                .select()
+                .apis(RequestHandlerSelectors.basePackage("com.educative.ecommerce"))
+                .paths(PathSelectors.any())
+                .build();
+    }
+
+	private ApiInfo getApiInfo() {
+        Contact contact = new Contact("webtutsplus", "http://webtutsplus.com", "contact.webtutsplus@gmail.com");
+        return new ApiInfoBuilder()
+                .title("Ecommerce API")
+                .description("Documentation Ecommerce api")
+                .version("1.0.0")
+                .license("Apache 2.0")
+                .licenseUrl("http://www.apache.org/licenses/LICENSE-2.0")
+                .contact(contact)
+                .build();
+    }
+}

src/main/java/com/educative/ecommerce/config/Webconfig.java

@@ -0,0 +1,22 @@
+package com.educative.ecommerce.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+class Webconfig {
+
+    @Bean
+    public WebMvcConfigurer corsConfigurer() {
+        return new WebMvcConfigurer() {
+            @Override
+            public void addCorsMappings(CorsRegistry registry) {
+                registry.addMapping("/**")
+                        .allowedOrigins("*")
+                        .allowedMethods("GET", "PUT", "POST", "PATCH", "DELETE", "OPTIONS");
+            }
+        };
+    }
+}

src/main/java/com/educative/ecommerce/controllers/CategoryController.java

@@ -0,0 +1,56 @@
+package com.educative.ecommerce.controllers;
+
+
+import com.educative.ecommerce.common.ApiResponse;
+import com.educative.ecommerce.model.Category;
+import com.educative.ecommerce.service.CategoryService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+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.RestController;
+
+import javax.validation.Valid;
+import java.util.List;
+import java.util.Objects;
+
+@RestController
+@RequestMapping("/category")
+
+public class CategoryController {
+
+	@Autowired
+	private CategoryService categoryService;
+
+	@GetMapping("/")
+    public ResponseEntity<List<Category>> getCategories() {
+        List<Category> body = categoryService.listCategories();
+        return new ResponseEntity<>(body, HttpStatus.OK);
+    }
+
+	@PostMapping("/create")
+	public ResponseEntity<ApiResponse> createCategory(@Valid @RequestBody Category category) {
+		if (Objects.nonNull(categoryService.readCategory(category.getCategoryName()))) {
+			return new ResponseEntity<ApiResponse>(new ApiResponse(false, "category already exists"), HttpStatus.CONFLICT);
+		}
+		categoryService.createCategory(category);
+		return new ResponseEntity<>(new ApiResponse(true, "created the category"), HttpStatus.CREATED);
+	}
+
+	@PostMapping("/update/{categoryID}")
+	public ResponseEntity<ApiResponse> updateCategory(@PathVariable("categoryID") Integer categoryID, @Valid @RequestBody Category category) {
+		// Check to see if the category exists.
+		if (Objects.nonNull(categoryService.readCategory(categoryID))) {
+			// If the category exists then update it.
+			categoryService.updateCategory(categoryID, category);
+			return new ResponseEntity<ApiResponse>(new ApiResponse(true, "updated the category"), HttpStatus.OK);
+		}
+
+		// If the category doesn't exist then return a response of unsuccessful.
+		return new ResponseEntity<>(new ApiResponse(false, "category does not exist"), HttpStatus.NOT_FOUND);
+	}
+}

src/main/java/com/educative/ecommerce/model/Category.java

@@ -0,0 +1,81 @@
+package com.educative.ecommerce.model;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+import javax.validation.constraints.NotBlank;
+import java.util.Set;
+
+@Entity
+@Table(name = "categories")
+public class Category {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private Integer id;
+
+	@Column(name = "category_name")
+	private @NotBlank String categoryName;
+
+	private @NotBlank String description;
+
+	private @NotBlank String imageUrl;
+
+
+	public Category() {
+	}
+
+	public Category(@NotBlank String categoryName, @NotBlank String description) {
+		this.categoryName = categoryName;
+		this.description = description;
+	}
+
+	public Category(@NotBlank String categoryName, @NotBlank String description, @NotBlank String imageUrl) {
+		this.categoryName = categoryName;
+		this.description = description;
+		this.imageUrl = imageUrl;
+	}
+
+	public String getCategoryName() {
+		return this.categoryName;
+	}
+
+	public void setCategoryName(String categoryName) {
+		this.categoryName = categoryName;
+	}
+
+	public String getDescription() {
+		return description;
+	}
+
+	public void setDescription(String description) {
+		this.description = description;
+	}
+
+	@Override
+	public String toString() {
+		return "User {category id=" + id + ", category name='" + categoryName + "', description='" + description + "'}";
+	}
+
+	public String getImageUrl() {
+		return imageUrl;
+	}
+
+	public void setImageUrl(String imageUrl) {
+		this.imageUrl = imageUrl;
+	}
+
+	public Integer getId() {
+		return id;
+	}
+
+	public void setId(Integer id) {
+		this.id = id;
+	}
+}

src/main/java/com/educative/ecommerce/repository/Categoryrepository.java

@@ -0,0 +1,12 @@
+package com.educative.ecommerce.repository;
+
+import com.educative.ecommerce.model.Category;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface Categoryrepository extends JpaRepository<Category, Integer> {
+
+	Category findByCategoryName(String categoryName);
+
+}

src/main/java/com/educative/ecommerce/service/CategoryService.java

@@ -0,0 +1,41 @@
+package com.educative.ecommerce.service;
+
+import com.educative.ecommerce.model.Category;
+import com.educative.ecommerce.repository.Categoryrepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import javax.transaction.Transactional;
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class CategoryService {
+
+	@Autowired
+	private Categoryrepository categoryrepository;
+
+	public List<Category> listCategories() {
+		return categoryrepository.findAll();
+	}
+
+	public void createCategory(Category category) {
+		categoryrepository.save(category);
+	}
+
+	public Category readCategory(String categoryName) {
+		return categoryrepository.findByCategoryName(categoryName);
+	}
+
+	public Optional<Category> readCategory(Integer categoryId) {
+		return categoryrepository.findById(categoryId);
+	}
+
+	public void updateCategory(Integer categoryID, Category newCategory) {
+		Category category = categoryrepository.findById(categoryID).get();
+		category.setCategoryName(newCategory.getCategoryName());
+		category.setDescription(newCategory.getDescription());
+		category.setImageUrl(newCategory.getImageUrl());
+		categoryrepository.save(category);
+	}
+}

src/main/resources/application.properties

@@ -1 +1,5 @@
-
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect