Merge pull request 'i added db and articles end points' (#1) from back_end into main

Reviewed-on: #1

back/Cargo.toml

@@ -6,4 +6,4 @@ edition = "2021"
 [dependencies]
 actix-files = "0.6.6"
 actix-web = "4"
-
+sqlite = "0.36.1"

back/src/creat_db.rs

@@ -0,0 +1,15 @@
+use sqlite::{Connection, State};
+
+fn main() -> sqlite::Result<()> {
+    let conn = Connection::open("./data/data.db")?;
+
+    conn.execute(
+        "CREATE TABLE articles (
+            id INTEGER PRIMARY KEY,
+            title TEXT NOT NULL,
+            subTitle TEXT,
+            content TEXT NOT NULL,
+        )",
+        [],
+    )?;
+}

back/src/main.rs

@@ -1,10 +1,14 @@
-use actix_web::{App, HttpServer};
+use actix_web::{get, http, post, web, App, HttpResponse, HttpServer, Responder};
 use actix_files::Files;
+use sqlite::{Connection, State, Error};
 
 #[actix_web::main]
-async fn main() -> std::io::Result<()> {
+async fn main() -> Result<(), std::io::Error> {
+    let conn = Connection::open("./data/data.db");
+
     HttpServer::new(|| {
         App::new()
+            .service(hello)
             .service(Files::new("/", "./public").index_file("index.html"))
     })
     .bind(("0.0.0.0", 8080))?
@@ -12,3 +16,24 @@ async fn main() -> std::io::Result<()> {
     .await
 }
 
+#[get("/api/hello")]
+async fn hello() -> impl Responder {
+    HttpResponse::Ok().body("Hello world!")
+}
+
+#[get("/api/articles")]
+async fn get_articles() -> impl Responder {
+    let conn = Connection::open("./data/data.db").unwrap();
+    let mut stmt = conn.prepare("SELECT * FROM articles").unwrap();
+    let mut articles = Vec::new();
+
+    while let State::Row = stmt.next().unwrap() {
+        let id = stmt.read::<i64, _>(0).unwrap();
+        let title = stmt.read::<String, _>(1).unwrap();
+        let subTitle = stmt.read::<String, _>(2).unwrap();
+        let content = stmt.read::<String, _>(3).unwrap();
+        articles.push((id, title, subTitle, content));
+    }
+
+    HttpResponse::Ok().json(articles)
+}