backend + sql

README.md

@@ -0,0 +1,11 @@
+### in terminal:
+docker-compose -f <file directory>/docker-compose.yml up -d
+docker exec -it x-db-1 psql -U admin \l
+CREATE DATABASE notes;
+
+### start the java app
+
+### GET/POST/DELETE
+get: localhost:8050/api/db
+post: localhost:8050/api/db
+delete: localhost:8050/api/db/{id}

docker-compose.yml

@@ -0,0 +1,11 @@
+services:
+  db:
+    image: postgres
+    restart: on-failure
+    environment:
+      POSTGRES_PASSWORD: admin
+      POSTGRES_USER: admin
+    volumes:
+      - <local directory>:/data/postgres
+    ports:
+      - 5432:5432

pom.xml

@@ -0,0 +1,50 @@
+<?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>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>3.0.1</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.example</groupId>
+	<artifactId>demo</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>demo</name>
+	<description>Demo project for Spring Boot</description>
+	<properties>
+		<java.version>17</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>
+		</dependency>
+
+		<dependency>
+			<groupId>org.postgresql</groupId>
+			<artifactId>postgresql</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

src/main/java/com/example/demo/Main.java

@@ -0,0 +1,54 @@
+package com.example.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.*;
+
+import java.time.LocalDate;
+import java.util.List;
+
+@SpringBootApplication
+@RestController
+public class Main {
+    private final NoteRepository noteRepository;
+
+    public Main(NoteRepository noteRepository) {
+        this.noteRepository = noteRepository;
+    }
+
+    public static void main(String[] args){
+        SpringApplication.run(Main.class, args);
+    }
+
+    @DeleteMapping("/api/db/{noteId}")
+    public void deleteNote(@PathVariable("noteId") Integer id){
+        noteRepository.deleteById(id);
+    }
+
+    @PostMapping ("/api/db")
+    public void postNote(@RequestBody NewNoteRequest request){
+        Note note = new Note();
+        note.setTitle(request.title());
+        note.setRating(request.rating());
+        note.setBody(request.body());
+        note.setDate(LocalDate.now());
+        noteRepository.save(note);
+    }
+
+    record NewNoteRequest(
+            String title,
+            String body,
+            Integer rating
+
+    ){}
+
+    @GetMapping("/api/db")
+    public List<Note> getNotes(){
+        return noteRepository.findAll();
+    }
+
+    @GetMapping("/")
+    public String greetHome(){
+        return "GET request should be made to /api/";
+    }
+}

src/main/java/com/example/demo/Note.java

@@ -0,0 +1,99 @@
+package com.example.demo;
+
+import jakarta.persistence.*;
+
+import java.time.LocalDate;
+
+@Entity
+public class Note {
+    @Id
+    @SequenceGenerator(
+            name = "note_id_sequence",
+            sequenceName = "note_id_sequence"
+    )
+    @GeneratedValue(
+            strategy = GenerationType.SEQUENCE,
+            generator = "note_id_sequence"
+    )
+    private Integer id;
+    private String title;
+    private String body;
+    private LocalDate date;
+    private Integer rating;
+
+    public Note(Integer id, String title, String body, Integer rating, LocalDate date) {
+        this.id = id;
+        this.title = title;
+        this.body = body;
+        this.rating = rating;
+        this.date = date;
+    }
+
+    public Note() {
+
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getBody() {
+        return body;
+    }
+
+    public void setBody(String content) {
+        this.body = content;
+    }
+
+    public LocalDate getDate() {
+        return date;
+    }
+
+    public void setDate(LocalDate date) {
+        this.date = date;
+    }
+
+    public Integer getRating() {
+        return rating;
+    }
+
+    public void setRating(Integer rating) {
+        this.rating = rating;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Note note = (Note) o;
+
+        if (id != note.id) return false;
+        if (rating != note.rating) return false;
+        if (!title.equals(note.title)) return false;
+        if (!body.equals(note.body)) return false;
+        return date.equals(note.date);
+    }
+
+    @Override
+    public int hashCode() {
+        Integer result = id;
+        result = 31 * result + title.hashCode();
+        result = 31 * result + body.hashCode();
+        result = 31 * result + date.hashCode();
+        result = 31 * result + rating;
+        return result;
+    }
+}

src/main/java/com/example/demo/NoteRepository.java

@@ -0,0 +1,6 @@
+package com.example.demo;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface NoteRepository extends JpaRepository<Note, Integer> {
+}

src/main/resources/META-INF/MANIFEST.MF

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: Main.java
+

src/main/resources/application.yml

@@ -0,0 +1,18 @@
+  server:
+    port: 8050
+
+  spring:
+    main:
+      web-application-type: servlet
+    datasource:
+      url: jdbc:postgresql://localhost:5432/notes
+      username: admin
+      password: admin
+    jpa:
+      hibernate:
+        ddl-auto: create-drop
+      properties:
+        hibernate:
+          dialect: org.hibernate.dialect.PostgreSQLDialect
+          format_sql: true
+      show-sql: true

src/test/java/com/example/demo/DemoApplicationTests.java

@@ -0,0 +1,13 @@
+package com.example.demo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DemoApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}