Adding user creation endpoint

Adding the user creation endpoint and its persistence in dynamoDB

Author: AlfonsoEsteves

minesweeper-api/pom.xml

@@ -17,10 +17,6 @@
 		<java.version>11</java.version>
 	</properties>
 	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-data-jpa</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
@@ -31,6 +27,18 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+
+		<dependency>
+			<groupId>com.amazonaws</groupId>
+			<artifactId>aws-java-sdk-dynamodb</artifactId>
+			<version>1.11.997</version>
+		</dependency>
+
+		<dependency>
+			<groupId>com.github.derjust</groupId>
+			<artifactId>spring-data-dynamodb</artifactId>
+			<version>5.1.0</version>
+		</dependency>
 	</dependencies>
 
 	<build>

minesweeper-api/src/main/java/com/example/minesweeper/config/DynamoDBConfig.java

@@ -0,0 +1,44 @@
+package com.example.minesweeper.config;
+
+import com.amazonaws.auth.AWSCredentialsProvider;
+import com.amazonaws.auth.profile.ProfileCredentialsProvider;
+import com.amazonaws.client.builder.AwsClientBuilder;
+import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;
+import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder;
+import org.socialsignin.spring.data.dynamodb.repository.config.EnableDynamoDBRepositories;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@EnableDynamoDBRepositories(basePackages = "com.example.minesweeper.repository")
+public class DynamoDBConfig {
+
+    @Value("${amazon.dynamodb.endpoint}")
+    private String amazonDynamoDBEndpoint;
+
+    @Value("${amazon.aws.region}")
+    private String amazonAWSRegion;
+
+    public DynamoDBConfig() {}
+
+    @Bean
+    public AmazonDynamoDB amazonDynamoDB() {
+        return configDBClientBuilder().build();
+    }
+
+    private AmazonDynamoDBClientBuilder configDBClientBuilder() {
+        AmazonDynamoDBClientBuilder builder = AmazonDynamoDBClientBuilder.standard();
+        builder.setEndpointConfiguration(amazonEndpointConfiguration());
+        builder.withCredentials(amazonAWSCredentials());
+        return builder;
+    }
+
+    private AwsClientBuilder.EndpointConfiguration amazonEndpointConfiguration() {
+        return new AwsClientBuilder.EndpointConfiguration(amazonDynamoDBEndpoint, amazonAWSRegion);
+    }
+
+    private AWSCredentialsProvider amazonAWSCredentials() {
+        return new ProfileCredentialsProvider();
+    }
+}

minesweeper-api/src/main/java/com/example/minesweeper/controller/UserController.java

@@ -0,0 +1,20 @@
+package com.example.minesweeper.controller;
+
+import com.example.minesweeper.controller.request.UserCreationRequest;
+import com.example.minesweeper.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+
+    @PostMapping("/user")
+    public void createUser(@RequestBody UserCreationRequest userCreationRequest) {
+        userService.createUser(userCreationRequest.name, userCreationRequest.password);
+    }
+}

minesweeper-api/src/main/java/com/example/minesweeper/controller/request/UserCreationRequest.java

@@ -0,0 +1,8 @@
+package com.example.minesweeper.controller.request;
+
+public class UserCreationRequest {
+
+    public String name;
+    public String password;
+
+}

minesweeper-api/src/main/java/com/example/minesweeper/model/User.java

@@ -0,0 +1,39 @@
+package com.example.minesweeper.model;
+
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBAttribute;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBHashKey;
+import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBTable;
+
+@DynamoDBTable(tableName = "MineSweeperUser")
+public class User {
+
+    private String name;
+
+    private int passwordHash;
+
+    public User() {
+    }
+
+    public User(String name, int passwordHash) {
+        this.name = name;
+        this.passwordHash = passwordHash;
+    }
+
+    @DynamoDBHashKey(attributeName = "name")
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @DynamoDBAttribute(attributeName = "passwordHash")
+    public int getPasswordHash() {
+        return passwordHash;
+    }
+
+    public void setPasswordHash(int passwordHash) {
+        this.passwordHash = passwordHash;
+    }
+}

minesweeper-api/src/main/java/com/example/minesweeper/repository/UserRepository.java

@@ -0,0 +1,9 @@
+package com.example.minesweeper.repository;
+
+import com.example.minesweeper.model.User;
+import org.socialsignin.spring.data.dynamodb.repository.EnableScan;
+import org.springframework.data.repository.CrudRepository;
+
+@EnableScan
+public interface UserRepository extends CrudRepository<User, String> {
+}

minesweeper-api/src/main/java/com/example/minesweeper/service/UserService.java

@@ -0,0 +1,20 @@
+package com.example.minesweeper.service;
+
+import com.example.minesweeper.model.User;
+import com.example.minesweeper.repository.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserService {
+
+    @Autowired
+    private UserRepository userRepository;
+
+    public User createUser(String name, String password) {
+        int hashedPassword = password.hashCode();
+        User user = new User(name, hashedPassword);
+        userRepository.save(user);
+        return user;
+    }
+}

minesweeper-api/src/main/resources/application.properties

@@ -1 +1,4 @@
+amazon.dynamodb.endpoint=https://dynamodb.us-west-2.amazonaws.com
+amazon.aws.region=us-west-2
 
+spring.main.allow-bean-definition-overriding=true