Added backend

backend/src/api.rs

@@ -0,0 +1,24 @@
+use actix_web::{HttpResponse, Responder, get, web::Data};
+use serde::Serialize;
+use sqlx::FromRow;
+
+use crate::AppState;
+
+#[derive(Serialize, FromRow)]
+struct Sample {
+    sampleid: i32,
+    samplename: String,
+}
+
+#[get("/sample")]
+pub async fn sample(app_state: Data<AppState>) -> impl Responder {
+    let query =
+        sqlx::query_as::<_, Sample>("SELECT * FROM sample")
+            .fetch_all(&app_state.pool)
+            .await;
+
+    match query {
+        Ok(result) => HttpResponse::Ok().json(result),
+        Err(_) => HttpResponse::BadRequest().into(),
+    }
+}

backend/src/main.rs

@@ -0,0 +1,33 @@
+use actix_web::{App, HttpServer, web::Data};
+use dotenvy::dotenv;
+
+use sqlx::mysql::{MySqlPool, MySqlPoolOptions};
+use std::env;
+
+mod api;
+use api::{sample};
+
+#[derive(Clone, Debug)]
+pub struct AppState {
+    pool: MySqlPool,
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    dotenv().ok();
+    let db_connection = env::var("DATABASE_URL").unwrap();
+    let pool: MySqlPool = MySqlPoolOptions::new()
+        .connect(db_connection.as_str())
+        .await
+        .unwrap();
+    let app_state = AppState { pool };
+
+    HttpServer::new(move || {
+        App::new()
+            .app_data(Data::new(app_state.pool.clone()))
+            .service(sample)
+    })
+    .bind(("127.0.0.1", 8080))?
+    .run()
+    .await
+}