Spring AWS S3

README.md

@@ -8,3 +8,4 @@ module for each Spring feature that I test.
 ## Table of contents
 - [Events in Spring](spring-events/README.md);
 - [SpEL permission evaluator](spring-el-permission-evaluator/README.md)
+- [AWS S3](spring-aws-s3/README.md)

pom.xml

@@ -1,23 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
 
-  <groupId>com.pedrodovale.experimentingwith.spring</groupId>
-  <artifactId>experimenting-with-spring-parent</artifactId>
-  <version>0.1-SNAPSHOT</version>
-  <modules>
-    <module>spring-events</module>
-    <module>spring-el-permission-evaluator</module>
-  </modules>
-  <packaging>pom</packaging>
+    <groupId>com.pedrodovale.experimentingwith.spring</groupId>
+    <artifactId>experimenting-with-spring-parent</artifactId>
+    <version>0.1-SNAPSHOT</version>
+    <modules>
+        <module>spring-events</module>
+        <module>spring-aws-s3</module>
+    </modules>
+    <packaging>pom</packaging>
 
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-    <maven.compiler.source>11</maven.compiler.source>
-    <maven.compiler.target>11</maven.compiler.target>
-  </properties>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+    </properties>
 
 </project>

spring-aws-s3/README.md

@@ -0,0 +1,21 @@
+# AWS S3
+
+Playing around with AWS S3 in a Springboot application based
+on [this documentation](https://docs.awspring.io/spring-cloud-aws/docs/3.2.0/reference/html/index.html#starter-dependencies)
+
+## How to test it
+
+From the root folder, execute:
+
+> ./mvnw clean package \
+> java -jar spring-aws-s3/target/app.jar --spring.config.additional-location=spring-aws-s3/src/main/resources/aws_credentials.properties
+
+This will start the Springboot application on port 8080.
+To interact with the API:
+
+> curl -v --include  --form books=@spring-aws-s3/src/test/resources/books.json http://localhost:8080/books/import
+> --data '{"title":"A Study in Scarlet"}'
+
+> curl http://localhost:8080/books
+
+The response body should contain the imported books, populated with an `id`.

spring-aws-s3/pom.xml

@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.pedrodovale.experimentingwith.spring</groupId>
+        <artifactId>experimenting-with-spring-parent</artifactId>
+        <version>0.1-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>spring-aws-s3</artifactId>
+    <properties>
+        <spring-boot-dependencies.version>3.3.5</spring-boot-dependencies.version>
+        <spring-cloud-aws-dependencies.version>3.2.0</spring-cloud-aws-dependencies.version>
+        <spring-boot-maven-plugin.version></spring-boot-maven-plugin.version>
+    </properties>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring-boot-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>io.awspring.cloud</groupId>
+                <artifactId>spring-cloud-aws-dependencies</artifactId>
+                <version>${spring-cloud-aws-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.awspring.cloud</groupId>
+            <artifactId>spring-cloud-aws-starter-s3</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-autoconfigure</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>app</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>3.3.1</version>
+                <executions>
+                    <execution>
+                        <id>package-with-build-info</id>
+                        <goals>
+                            <goal>repackage</goal>
+                            <goal>build-info</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

spring-aws-s3/src/main/java/com/pedrodovale/experimentingwith/spring/awss3/AwsS3Application.java

@@ -0,0 +1,13 @@
+package com.pedrodovale.experimentingwith.spring.awss3;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+
+@SpringBootApplication
+@EnableConfigurationProperties(BooksProperties.class)
+public class AwsS3Application {
+  public static void main(String[] args) {
+    SpringApplication.run(AwsS3Application.class, args);
+  }
+}

spring-aws-s3/src/main/java/com/pedrodovale/experimentingwith/spring/awss3/BooksProperties.java

@@ -0,0 +1,18 @@
+package com.pedrodovale.experimentingwith.spring.awss3;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import software.amazon.awssdk.annotations.NotNull;
+
+import static com.pedrodovale.experimentingwith.spring.awss3.BooksProperties.PREFIX;
+
+@ConfigurationProperties(prefix = PREFIX)
+@Getter
+@Setter
+public class BooksProperties {
+
+  public static final String PREFIX = "com.pedrodovale.experimentingwith.spring.books";
+
+  @NotNull private String bucket;
+}

spring-aws-s3/src/main/java/com/pedrodovale/experimentingwith/spring/awss3/controller/BooksController.java

@@ -0,0 +1,29 @@
+package com.pedrodovale.experimentingwith.spring.awss3.controller;
+
+import com.pedrodovale.experimentingwith.spring.awss3.model.Book;
+import com.pedrodovale.experimentingwith.spring.awss3.service.BooksService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestPart;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
+
+import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;
+import static org.springframework.http.MediaType.MULTIPART_FORM_DATA_VALUE;
+
+@RestController
+@RequiredArgsConstructor
+public class BooksController {
+
+  private final BooksService booksService;
+
+  @PostMapping(
+      value = "/books/import",
+      consumes = MULTIPART_FORM_DATA_VALUE,
+      produces = APPLICATION_JSON_VALUE)
+  public List<Book> importBooks(@RequestPart(name = "books") MultipartFile multipartFile) {
+    return booksService.processAndBackup(multipartFile);
+  }
+}

spring-aws-s3/src/main/java/com/pedrodovale/experimentingwith/spring/awss3/model/Book.java

@@ -0,0 +1,13 @@
+package com.pedrodovale.experimentingwith.spring.awss3.model;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.io.Serializable;
+
+@Getter
+@Setter
+public class Book implements Serializable {
+  private String id;
+  private String title;
+}

spring-aws-s3/src/main/java/com/pedrodovale/experimentingwith/spring/awss3/service/BooksService.java

@@ -0,0 +1,47 @@
+package com.pedrodovale.experimentingwith.spring.awss3.service;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.pedrodovale.experimentingwith.spring.awss3.BooksProperties;
+import com.pedrodovale.experimentingwith.spring.awss3.model.Book;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+import software.amazon.awssdk.core.sync.RequestBody;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.PutObjectRequest;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+import java.util.UUID;
+
+@Service
+public class BooksService {
+
+  public static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+  private final S3Client s3Client;
+  private final String bucket;
+
+  public BooksService(S3Client s3Client, BooksProperties booksProperties) {
+    this.s3Client = s3Client;
+    this.bucket = booksProperties.getBucket();
+  }
+
+  public List<Book> processAndBackup(MultipartFile multipartFile) {
+    try (InputStream inputStream = multipartFile.getInputStream()) {
+      byte[] bytes = inputStream.readAllBytes();
+      List<Book> books = OBJECT_MAPPER.readValue(bytes, new TypeReference<>() {});
+      books.forEach(
+          book -> {
+            String bookId = UUID.randomUUID().toString();
+            book.setId(bookId);
+            s3Client.putObject(
+                PutObjectRequest.builder().key(bookId).bucket(bucket).build(),
+                RequestBody.fromBytes(bytes));
+          });
+      return books;
+    } catch (IOException e) {
+      throw new RuntimeException("problem retrieving local file", e);
+    }
+  }
+}

spring-aws-s3/src/main/resources/application.yml

@@ -0,0 +1,20 @@
+spring:
+  cloud:
+    aws:
+      region:
+        static: eu-central-1
+      s3:
+        path-style-access-enabled: false
+
+com:
+  pedrodovale:
+    experimentingwith:
+      spring:
+        books:
+          bucket: books-123
+
+logging:
+  level:
+    io:
+      awspring:
+        cloud: debug

spring-aws-s3/src/test/java/com/pedrodovale/experimentingwith/spring/awss3/controller/BooksControllerTest.java

@@ -0,0 +1,44 @@
+package com.pedrodovale.experimentingwith.spring.awss3.controller;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.core.io.Resource;
+import org.springframework.mock.web.MockPart;
+import org.springframework.test.web.servlet.MockMvc;
+import software.amazon.awssdk.services.s3.S3Client;
+
+import static org.springframework.http.MediaType.APPLICATION_JSON;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.multipart;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@SpringBootTest
+@AutoConfigureMockMvc
+class BooksControllerTest {
+
+  @Autowired private MockMvc mockMvc;
+
+  @MockBean private S3Client s3Client;
+
+  @Value("classpath:books.json")
+  private Resource sampleFile;
+
+  @Test
+  void importBooks() throws Exception {
+    mockMvc
+        .perform(
+            multipart("/books/import")
+                .part(
+                    new MockPart(
+                        "books", sampleFile.getFilename(), sampleFile.getContentAsByteArray())))
+        .andExpect(status().isOk())
+        .andExpect(content().contentType(APPLICATION_JSON))
+        .andExpect(jsonPath("$[0].id").isNotEmpty())
+        .andExpect(jsonPath("$[0].title").value("A Study In Scarlet"));
+  }
+}

spring-aws-s3/src/test/resources/books.json

@@ -0,0 +1,5 @@
+[
+  {
+    "title": "A Study In Scarlet"
+  }
+]