Added working database connectivity

src/dao/main_dao.rs

@@ -0,0 +1,22 @@
+use std::collections::HashMap;
+use sqlx::{MySqlConnection, Connection};
+
+pub async fn start_database_connection(env_vars: &HashMap<String, String>) -> Result<MySqlConnection, sqlx::Error>{
+    let db_user = match env_vars.get("DB_USER") {
+        Some(str) => str,
+        None => panic!("DB_USER env var not found")
+    };
+    let db_pass = match env_vars.get("DB_PASS") {
+        Some(str) => str,
+        None => panic!("DB_PASS env var not found")
+    };
+    let db_host = match env_vars.get("DB_HOST") {
+        Some(str) => str,
+        None => panic!("DB_HOST env var not found")
+    };
+    let db_database_name = match env_vars.get("DB_DATABASE_NAME") {
+        Some(str) => str,
+        None => panic!("DB_DATABASE_NAME env var not found")
+    };
+    MySqlConnection::connect(&format!("mysql://{db_user}:{db_pass}@{db_host}/{db_database_name}")).await
+}

src/dao/user_dao.rs

@@ -1,6 +1,8 @@
+use sqlx::{ MySqlConnection};
+
 use crate::r#do::user::User;
 
 
-pub async fn insert_user(user: User) -> Result<(), sqlx::Error>{
+pub async fn _insert_user(_conn: &mut MySqlConnection, _user: User) -> Result<(), sqlx::Error>{
     Ok(())
 }

src/main.rs

@@ -1,17 +1,23 @@
 mod r#do; mod dao; 
 mod routes; mod service;
 mod util;
+
 use util::env_util;
 use routes::main_router::{start_all_routes, after_startup_fn};
+use dao::main_dao;
 
 #[tokio::main]
 async fn main() -> Result<(), std::io::Error> {
+
     //  Retrieve env variables and send to services that need them.
     let env_vars = env_util::get_dot_env_map();
     
     //  Start database
-
+    let _db_conn = match main_dao::start_database_connection(&env_vars).await {
+        Ok(conn) => conn,
+        Err(e) => panic!("{}", e)
+    };
 
     //  Start server
-    start_all_routes(&after_startup_fn, env_vars).await
+    start_all_routes(&after_startup_fn, &env_vars).await
 }

src/routes/main_router.rs

@@ -7,7 +7,7 @@ pub fn after_startup_fn(){
     println!("{}", "Started server.");
 }
 
-pub async fn start_all_routes(after_startup_fn_call: &dyn Fn(), env_vars: HashMap<String, String>)
+pub async fn start_all_routes(after_startup_fn_call: &dyn Fn(), env_vars: &HashMap<String, String>)
  -> Result<(), std::io::Error>
 {
     //  Get env variables to build server address

src/routes/user_routes.rs

@@ -1,8 +1,8 @@
-use actix_web::{get, web, Responder, HttpResponse, body::MessageBody};
+use actix_web::{get, web::{self, Path}, HttpResponse};
 
 use crate::r#do::user::User;
 
 #[get("/user/{id}")]
-pub async fn get_user_from_db(id: web::Path<u16>) -> HttpResponse {
+pub async fn get_user_from_db(id: Path<u16>) -> HttpResponse {
     HttpResponse::Ok().json(web::Json(User {id: *id, name: "nigga".to_string()}))
 }