delete db/r2d2 example

database_interactions/diesel/README.md

@@ -1,6 +1,6 @@
 # diesel
 
-Basic integration of [Diesel](https://diesel.rs/) using SQLite for Actix web.
+Basic integration of [Diesel](https://diesel.rs/) using SQLite for Actix Web.
 
 ## Usage
 

database_interactions/diesel/src/actions.rs

@@ -26,7 +26,7 @@ pub fn insert_new_user(
     nm: &str,
     conn: &SqliteConnection,
 ) -> Result<models::User, DbError> {
-    // It is common when using Diesel with Actix web to import schema-related
+    // It is common when using Diesel with Actix Web to import schema-related
     // modules inside a function's scope (rather than the normal module's scope)
     // to prevent import collisions and namespace pollution.
     use crate::schema::users::dsl::*;

database_interactions/diesel/src/main.rs

@@ -1,4 +1,4 @@
-//! Actix web Diesel integration example
+//! Actix Web Diesel integration example
 //!
 //! Diesel does not support tokio, so we have to run it in separate threads using the web::block
 //! function which offloads blocking code (like Diesel's) in order to not block the server's thread.

database_interactions/mongodb/README.md

@@ -1,6 +1,6 @@
 # MongoDB
 
-Simple example of MongoDB usage with Actix web. For more information on the MongoDB Rust driver,
+Simple example of MongoDB usage with Actix Web. For more information on the MongoDB Rust driver,
 visit the [documentation](https://docs.rs/mongodb/2.0.0/mongodb/index.html) and
 [source code](https://github.com/mongodb/mongo-rust-driver).
 
@@ -22,4 +22,3 @@ MongoDB manual.
 ### Run the example
 
 To execute the example code, run `cargo run` in the `database_interactions/mongodb` directory.
-

database_interactions/r2d2/Cargo.toml

@@ -1,14 +0,0 @@
-[package]
-name = "r2d2-example"
-version = "1.0.0"
-edition = "2021"
-
-[dependencies]
-actix-web = "4.0.0-rc.1"
-
-env_logger = "0.9.0"
-uuid = { version = "1.0.0-alpha.1", features = ["v4"] }
-
-r2d2 = "0.8"
-r2d2_sqlite = "0.18.0"
-rusqlite = "0.25.4"

database_interactions/r2d2/src/main.rs

@@ -1,57 +0,0 @@
-//! Actix web r2d2 example
-use std::io;
-
-use actix_web::{
-    error::InternalError, http::StatusCode, middleware, web, App, Error, HttpResponse,
-    HttpServer,
-};
-use r2d2::Pool;
-use r2d2_sqlite::SqliteConnectionManager;
-
-/// Async request handler. Ddb pool is stored in application state.
-async fn index(
-    path: web::Path<String>,
-    db: web::Data<Pool<SqliteConnectionManager>>,
-) -> Result<HttpResponse, Error> {
-    // execute sync code in threadpool
-    let res = web::block(move || {
-        let conn = db.get().unwrap();
-
-        let uuid = format!("{}", uuid::Uuid::new_v4());
-        conn.execute(
-            "INSERT INTO users (id, name) VALUES ($1, $2)",
-            &[&uuid, &path.into_inner()],
-        )
-        .unwrap();
-
-        conn.query_row("SELECT name FROM users WHERE id=$1", &[&uuid], |row| {
-            row.get::<_, String>(0)
-        })
-    })
-    .await
-    .unwrap()
-    .map(|user| HttpResponse::Ok().json(user))
-    .map_err(|e| InternalError::new(e, StatusCode::INTERNAL_SERVER_ERROR))?;
-    Ok(res)
-}
-
-#[actix_web::main]
-async fn main() -> io::Result<()> {
-    std::env::set_var("RUST_LOG", "actix_web=debug");
-    env_logger::init();
-
-    // r2d2 pool
-    let manager = SqliteConnectionManager::file("test.db");
-    let pool = r2d2::Pool::new(manager).unwrap();
-
-    // start http server
-    HttpServer::new(move || {
-        App::new()
-            .app_data(web::Data::new(pool.clone())) // <- store db pool in app state
-            .wrap(middleware::Logger::default())
-            .route("/{name}", web::get().to(index))
-    })
-    .bind("127.0.0.1:8080")?
-    .run()
-    .await
-}

database_interactions/simple-auth-server/README.md

@@ -17,7 +17,7 @@
 
 ### Crates Used
 
-- [actix-web](https://crates.io/crates/actix-web) // Actix web is a simple, pragmatic and extremely fast web framework for Rust.
+- [actix-web](https://crates.io/crates/actix-web) // Actix Web is a simple, pragmatic and extremely fast web framework for Rust.
 - [rust-argon2](https://crates.io/crates/rust-argon2) // crate for hashing passwords using the cryptographically-secure Argon2 hashing algorithm.
 - [chrono](https://crates.io/crates/chrono) // Date and time library for Rust.
 - [diesel](https://crates.io/crates/diesel) // A safe, extensible ORM and Query Builder for PostgreSQL, SQLite, and MySQL.