Merge pull request #6885 from dragosv/axum-sqlx-minimal

Rust Axum

frameworks/Rust/axum/.gitignore

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frameworks/Rust/axum/Cargo.toml

@@ -0,0 +1,49 @@
+[package]
+name = "axum"
+version = "0.1.0"
+authors = ["Dragos Varovici <[email protected]>"]
+edition = "2018"
+
+[[bin]]
+name = "axum"
+path = "src/main.rs"
+
+[[bin]]
+name = "axum-sqlx"
+path = "src/main_sqlx.rs"
+
+[[bin]]
+name = "axum-bb8"
+path = "src/main_bb8.rs"
+
+[[bin]]
+name = "axum-mongo"
+path = "src/main_mongo.rs"
+
+[dependencies]
+rand = { version = "^0.8", features = ["small_rng"]}
+yarte = { version = "^0.15" }
+async-stream = { version = "^0.3" }
+async-trait = { version = "0.1" }
+futures = { version = "^0.3" }
+futures-util = { version = "^0.3" }
+dotenv = { version = "^0.15" }
+serde = { version = "^1", features = ["derive"] }
+serde_json = { version = "^1" }
+serde_derive = { version = "^1" }
+axum = { version = "^0.3" }
+tokio = { version = "1.0", features = ["full"] }
+hyper = "0.14"
+tower = { version = "0.4", features = ["util"] }
+tower-http = { version = "0.1", features = ["set-header"] }
+sqlx = { version = "^0.5", features = [ "postgres", "macros", "runtime-tokio-native-tls" ] }
+bb8 = "0.7"
+bb8-postgres = "0.7"
+tokio-postgres = "0.7"
+tokio-pg-mapper = "0.2"
+tokio-pg-mapper-derive = "0.2"
+mongodb = "2.0"
+
+[profile.release]
+lto = true
+codegen-units = 1

frameworks/Rust/axum/README.md

@@ -0,0 +1,42 @@
+
+# [Axum](https://github.com/tokio-rs/axum) - Ergonomic and modular web framework built with Tokio, Tower, and Hyper
+
+## Description
+
+Axum is a web application framework that focuses on ergonomics and modularity.
+
+* [User Guide](https://docs.rs/axum/0.3.0/axum/)
+* [API Documentation](https://docs.rs/axum/0.3.0/axum/)
+* Cargo package: [axum](https://crates.io/crates/axum)
+
+## Database
+
+PostgreSQL
+
+* Raw using [sqlx](https://github.com/launchbadge/sqlx)
+
+## Test URLs
+
+### Test 1: JSON Encoding
+
+    http://localhost:8000/json
+
+### Test 2: Single Row Query
+
+    http://localhost:8000/db
+
+### Test 3: Multi Row Query
+
+    http://localhost:8000/queries?q=20
+
+### Test 4: Fortunes (Template rendering)
+
+    http://localhost:8000/fortunes
+
+### Test 5: Update Query
+
+    http://localhost:8000/updates?q=20
+
+### Test 6: Plaintext
+
+    http://localhost:8000/plaintext

frameworks/Rust/axum/axum-bb8.dockerfile

@@ -0,0 +1,20 @@
+FROM rust:1.55-slim-buster
+
+ENV AXUM_TECHEMPOWER_DATABASE_URL=postgres://benchmarkdbuser:benchmarkdbpass@tfb-database/hello_world
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpq-dev pkg-config libssl-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /axum
+COPY ./src ./src
+COPY ./templates ./templates
+COPY ./Cargo.toml ./Cargo.toml
+COPY ./Cargo.lock ./Cargo.lock
+
+ENV RUSTFLAGS "-C target-cpu=native"
+RUN cargo build --release
+
+EXPOSE 8000
+
+CMD ["./target/release/axum-bb8"]

frameworks/Rust/axum/axum-mongo.dockerfile

@@ -0,0 +1,20 @@
+FROM rust:1.55-slim-buster
+
+ENV AXUM_TECHEMPOWER_MONGODB_URL=mongodb://tfb-database:27017
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    pkg-config libssl-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /axum
+COPY ./src ./src
+COPY ./templates ./templates
+COPY ./Cargo.toml ./Cargo.toml
+COPY ./Cargo.lock ./Cargo.lock
+
+ENV RUSTFLAGS "-C target-cpu=native"
+RUN cargo build --release
+
+EXPOSE 8000
+
+CMD ["./target/release/axum-mongo"]

frameworks/Rust/axum/axum-sqlx.dockerfile

@@ -0,0 +1,20 @@
+FROM rust:1.55-slim-buster
+
+ENV AXUM_TECHEMPOWER_DATABASE_URL=postgres://benchmarkdbuser:benchmarkdbpass@tfb-database/hello_world
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpq-dev pkg-config libssl-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /axum
+COPY ./src ./src
+COPY ./templates ./templates
+COPY ./Cargo.toml ./Cargo.toml
+COPY ./Cargo.lock ./Cargo.lock
+
+ENV RUSTFLAGS "-C target-cpu=native"
+RUN cargo build --release
+
+EXPOSE 8000
+
+CMD ["./target/release/axum-sqlx"]

frameworks/Rust/axum/axum.dockerfile

@@ -0,0 +1,18 @@
+FROM rust:1.55-slim-buster
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    pkg-config libssl-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /axum
+COPY ./src ./src
+COPY ./templates ./templates
+COPY ./Cargo.toml ./Cargo.toml
+COPY ./Cargo.lock ./Cargo.lock
+
+ENV RUSTFLAGS "-C target-cpu=native"
+RUN cargo build --release
+
+EXPOSE 8000
+
+CMD ["./target/release/axum"]

frameworks/Rust/axum/benchmark_config.json

@@ -0,0 +1,88 @@
+{
+  "framework": "axum",
+  "tests": [
+    {
+      "default": {
+        "json_url": "/json",
+        "plaintext_url": "/plaintext",
+        "port": 8000,
+        "approach": "Realistic",
+        "classification": "Platform",
+        "database": "none",
+        "framework": "Axum",
+        "language": "Rust",
+        "flavor": "None",
+        "orm": "Raw",
+        "platform": "Rust",
+        "webserver": "Hyper",
+        "os": "Linux",
+        "database_os": "Linux",
+        "display_name": "Axum",
+        "notes": "",
+        "versus": "None"
+      },
+      "sqlx": {
+        "db_url": "/db",
+        "fortune_url": "/fortunes",
+        "query_url": "/queries?queries=",
+        "update_url": "/updates?queries=",
+        "port": 8000,
+        "approach": "Realistic",
+        "classification": "Fullstack",
+        "database": "postgres",
+        "framework": "Axum",
+        "language": "Rust",
+        "flavor": "None",
+        "orm": "Full",
+        "platform": "Rust",
+        "webserver": "Hyper",
+        "os": "Linux",
+        "database_os": "Linux",
+        "display_name": "Axum [sqlx]",
+        "notes": "",
+        "versus": "None"
+      },
+      "bb8": {
+        "db_url": "/db",
+        "query_url": "/queries?queries=",
+        "update_url": "/updates?queries=",
+        "fortune_url": "/fortunes",
+        "port": 8000,
+        "approach": "Realistic",
+        "classification": "Fullstack",
+        "database": "postgres",
+        "framework": "Axum",
+        "language": "Rust",
+        "flavor": "None",
+        "orm": "Full",
+        "platform": "Rust",
+        "webserver": "Hyper",
+        "os": "Linux",
+        "database_os": "Linux",
+        "display_name": "Axum [bb8]",
+        "notes": "",
+        "versus": "None"
+      },
+      "mongo": {
+        "db_url": "/db",
+        "query_url": "/queries?queries=",
+        "fortune_url": "/fortunes",
+        "port": 8000,
+        "approach": "Realistic",
+        "classification": "Fullstack",
+        "database": "mongodb",
+        "framework": "Axum",
+        "language": "Rust",
+        "flavor": "None",
+        "orm": "Full",
+        "platform": "Rust",
+        "webserver": "Hyper",
+        "os": "Linux",
+        "database_os": "Linux",
+        "display_name": "Axum [mongodb]",
+        "notes": "",
+        "versus": "None"
+      }
+    }
+  ]
+}

frameworks/Rust/axum/config.toml

@@ -0,0 +1,19 @@
+[framework]
+name = "axum"
+
+[main]
+urls.plaintext = "/plaintext"
+urls.json = "/json"
+urls.db = "/db"
+urls.query = "/queries?q="
+urls.update = "/updates?q="
+urls.fortune = "/fortunes"
+approach = "Realistic"
+classification = "Fullstack"
+database = "Postgres"
+database_os = "Linux"
+os = "Linux"
+orm = "Raw"
+platform = "Rust"
+webserver = "Hyper"
+versus = "None"

frameworks/Rust/axum/rustfmt.toml

@@ -0,0 +1,2 @@
+max_width = 89
+reorder_imports = true

frameworks/Rust/axum/src/common_handlers.rs

@@ -0,0 +1,17 @@
+use axum::http::StatusCode;
+use axum::Json;
+use axum::response::IntoResponse;
+
+use crate::models_common::{Message};
+
+pub async fn plaintext() -> &'static str {
+    "Hello, World!"
+}
+
+pub async fn json() -> impl IntoResponse {
+    let message = Message {
+        message: "Hello, World!",
+    };
+
+    (StatusCode::OK, Json(message))
+}

frameworks/Rust/axum/src/database_bb8.rs

@@ -0,0 +1,36 @@
+use axum::extract::{Extension, FromRequest, RequestParts};
+use axum::http::StatusCode;
+use bb8::{Pool, PooledConnection};
+use bb8_postgres::PostgresConnectionManager;
+use bb8_postgres::tokio_postgres::NoTls;
+use crate::utils::internal_error;
+
+pub type ConnectionManager = PostgresConnectionManager<NoTls>;
+pub type ConnectionPool = Pool<ConnectionManager>;
+pub type Connection = PooledConnection<'static, ConnectionManager>;
+
+pub async fn create_bb8_pool(database_url: String) -> ConnectionPool {
+    let manager = PostgresConnectionManager::new_from_stringlike(database_url, NoTls).unwrap();
+
+    Pool::builder().build(manager).await.unwrap()
+}
+
+pub struct DatabaseConnection(pub Connection);
+
+#[async_trait]
+impl<B> FromRequest<B> for DatabaseConnection
+    where
+        B: Send,
+{
+    type Rejection = (StatusCode, String);
+
+    async fn from_request(req: &mut RequestParts<B>) -> Result<Self, Self::Rejection> {
+        let Extension(pool) = Extension::<ConnectionPool>::from_request(req)
+            .await
+            .map_err(internal_error)?;
+
+        let conn = pool.get_owned().await.map_err(internal_error)?;
+
+        Ok(Self(conn))
+    }
+}

frameworks/Rust/axum/src/database_mongo.rs

@@ -0,0 +1,27 @@
+use axum::extract::{Extension, FromRequest, RequestParts};
+use axum::http::StatusCode;
+
+use mongodb::{Client, Database, options::ClientOptions};
+use crate::utils::internal_error;
+
+pub struct DatabaseConnection(pub Database);
+
+#[async_trait]
+impl<B> FromRequest<B> for DatabaseConnection
+    where
+        B: Send,
+{
+    type Rejection = (StatusCode, String);
+
+    async fn from_request(req: &mut RequestParts<B>) -> Result<Self, Self::Rejection> {
+        let Extension(client_options) = Extension::<ClientOptions>::from_request(req)
+            .await
+            .map_err(internal_error)?;
+
+        let client = Client::with_options(client_options).unwrap();
+        let database = client.database("hello_world");
+
+        Ok(Self(database))
+    }
+}
+

frameworks/Rust/axum/src/database_sqlx.rs

@@ -0,0 +1,32 @@
+use axum::extract::{Extension, FromRequest, RequestParts};
+use axum::http::StatusCode;
+
+use sqlx::{PgPool, Postgres};
+use sqlx::pool::PoolConnection;
+use sqlx::postgres::PgPoolOptions;
+use crate::utils::internal_error;
+
+pub async fn create_pool(database_url: String) -> PgPool {
+    PgPoolOptions::new().max_connections(100).connect(&*database_url).await.unwrap()
+}
+
+pub struct DatabaseConnection(pub PoolConnection<Postgres>);
+
+#[async_trait]
+impl<B> FromRequest<B> for DatabaseConnection
+    where
+        B: Send,
+{
+    type Rejection = (StatusCode, String);
+
+    async fn from_request(req: &mut RequestParts<B>) -> Result<Self, Self::Rejection> {
+        let Extension(pool) = Extension::<PgPool>::from_request(req)
+            .await
+            .map_err(internal_error)?;
+
+        let conn = pool.acquire().await.map_err(internal_error)?;
+
+        Ok(Self(conn))
+    }
+}
+

frameworks/Rust/axum/src/main.rs

@@ -0,0 +1,34 @@
+extern crate serde_derive;
+extern crate dotenv;
+extern crate async_trait;
+extern crate tokio_pg_mapper_derive;
+extern crate tokio_pg_mapper;
+
+mod common_handlers;
+mod models_common;
+
+use dotenv::dotenv;
+use std::net::{Ipv4Addr, SocketAddr};
+use axum::{Router, routing::get};
+use axum::http::{header, HeaderValue};
+use tower_http::set_header::SetResponseHeaderLayer;
+use hyper::Body;
+
+use common_handlers::{json, plaintext};
+
+#[tokio::main]
+async fn main() {
+    dotenv().ok();
+
+    let addr = SocketAddr::from((Ipv4Addr::UNSPECIFIED, 8000));
+
+    let app =  Router::new()
+        .route("/plaintext", get(plaintext))
+        .route("/json", get(json))
+        .layer(SetResponseHeaderLayer::<_, Body>::if_not_present(header::SERVER, HeaderValue::from_static("Axum")));
+
+    axum::Server::bind(&addr)
+        .serve(app.into_make_service())
+        .await
+        .unwrap();
+}

frameworks/Rust/axum/src/main_bb8.rs

@@ -0,0 +1,170 @@
+extern crate serde_derive;
+extern crate dotenv;
+#[macro_use]
+extern crate async_trait;
+
+mod common_handlers;
+mod models_common;
+mod models_bb8;
+mod database_bb8;
+mod utils;
+
+use dotenv::dotenv;
+use std::net::{Ipv4Addr, SocketAddr};
+use std::env;
+use crate::database_bb8::{Connection, create_bb8_pool, DatabaseConnection};
+use axum::{
+    extract::{Query},
+    http::StatusCode,
+    response::IntoResponse,
+    routing::get,
+    AddExtensionLayer, Json, Router,
+};
+use axum::http::{header, HeaderValue};
+use bb8_postgres::tokio_postgres::{Row, Statement};
+use tower_http::set_header::SetResponseHeaderLayer;
+use hyper::Body;
+use rand::rngs::SmallRng;
+use rand::{SeedableRng};
+use tokio_pg_mapper::FromTokioPostgresRow;
+use yarte::Template;
+
+use models_bb8::{World, Fortune};
+use common_handlers::{json, plaintext};
+use utils::{Params, parse_params, random_number};
+use crate::utils::Utf8Html;
+
+async fn db(DatabaseConnection(conn): DatabaseConnection) -> impl IntoResponse {
+    let mut rng = SmallRng::from_entropy();
+    let number = random_number(&mut rng);
+
+    let select = prepare_fetch_world_by_id_statement(&conn).await;
+    let world = fetch_world_by_id_using_statement(&conn, number, &select).await;
+
+    (StatusCode::OK, Json(world))
+}
+
+async fn fetch_world_by_id_using_statement(conn: &Connection, number: i32, select: &Statement) -> World {
+    let row: Row = conn.query_one(select, &[&number]).await.unwrap();
+
+    World::from_row(row).unwrap()
+}
+
+async fn queries(DatabaseConnection(conn): DatabaseConnection, Query(params): Query<Params>) -> impl IntoResponse {
+    let q = parse_params(params);
+
+    let mut rng = SmallRng::from_entropy();
+
+    let mut results = Vec::with_capacity(q as usize);
+
+    let select = prepare_fetch_world_by_id_statement(&conn).await;
+
+    for _ in 0..q {
+        let query_id = random_number(&mut rng);
+
+        let result :World = fetch_world_by_id_using_statement(&conn, query_id, &select).await;
+
+        results.push(result);
+    }
+
+    (StatusCode::OK, Json(results))
+}
+
+async fn fortunes(DatabaseConnection(conn): DatabaseConnection) -> impl IntoResponse {
+    let select = prepare_fetch_all_fortunes_statement(&conn).await;
+
+    let rows: Vec<Row> = conn.query(&select, &[]).await.unwrap();
+
+    let mut fortunes: Vec<Fortune> = Vec::with_capacity(rows.capacity());
+
+    for row in rows {
+        fortunes.push(Fortune::from_row(row).unwrap());
+    }
+
+    fortunes.push(Fortune {
+        id: 0,
+        message: "Additional fortune added at request time.".to_string(),
+    });
+
+    fortunes.sort_by(|a, b| a.message.cmp(&b.message));
+
+    Utf8Html(
+        FortunesTemplate {
+            fortunes: &fortunes,
+        }
+        .call()
+        .expect("error rendering template"),
+    )
+}
+
+async fn updates(DatabaseConnection(conn): DatabaseConnection, Query(params): Query<Params>) -> impl IntoResponse {
+    let q = parse_params(params);
+
+    let mut rng = SmallRng::from_entropy();
+
+    let mut results = Vec::with_capacity(q as usize);
+
+    let select = prepare_fetch_world_by_id_statement(&conn).await;
+
+    for _ in 0..q {
+        let query_id = random_number(&mut rng);
+        let mut result :World = fetch_world_by_id_using_statement(&conn, query_id, &select).await;
+
+        result.randomnumber = random_number(&mut rng);
+        results.push(result);
+    }
+
+    let update = prepare_update_world_by_id_statement(&conn).await;
+
+    for w in &results {
+        conn.execute(&update, &[&w.randomnumber, &w.id]).await.unwrap();
+    }
+
+    (StatusCode::OK, Json(results))
+}
+
+async fn prepare_fetch_all_fortunes_statement(conn: &Connection) -> Statement {
+    conn.prepare("SELECT * FROM Fortune").await.unwrap()
+}
+
+async fn prepare_fetch_world_by_id_statement(conn: &Connection) -> Statement {
+    conn.prepare("SELECT id, randomnumber FROM World WHERE id = $1").await.unwrap()
+}
+
+async fn prepare_update_world_by_id_statement(conn: &Connection) -> Statement {
+    conn.prepare("UPDATE World SET randomnumber = $1 WHERE id = $2").await.unwrap()
+}
+
+#[tokio::main]
+async fn main() {
+    dotenv().ok();
+
+    let database_url = env::var("AXUM_TECHEMPOWER_DATABASE_URL").ok()
+        .expect("AXUM_TECHEMPOWER_DATABASE_URL environment variable was not set");
+
+    let addr = SocketAddr::from((Ipv4Addr::UNSPECIFIED, 8000));
+
+    // setup connection pool
+    let pool = create_bb8_pool(database_url).await;
+
+    let router = Router::new()
+        .route("/plaintext", get(plaintext))
+        .route("/json", get(json))
+        .route("/fortunes", get(fortunes))
+        .route("/db", get(db))
+        .route("/queries", get(queries))
+        .route("/updates", get(updates))
+        .layer(AddExtensionLayer::new(pool))
+        .layer(SetResponseHeaderLayer::<_, Body>::if_not_present(header::SERVER, HeaderValue::from_static("Axum")));
+
+    axum::Server::bind(&addr)
+        .serve(router.into_make_service())
+        .await
+        .unwrap();
+}
+
+#[derive(Template)]
+#[template(path = "fortunes.html.hbs")]
+pub struct FortunesTemplate<'a> {
+    pub fortunes: &'a Vec<Fortune>,
+}

frameworks/Rust/axum/src/main_mongo.rs

@@ -0,0 +1,136 @@
+extern crate serde_derive;
+extern crate dotenv;
+#[macro_use]
+extern crate async_trait;
+
+mod common_handlers;
+mod models_common;
+mod models_mongo;
+mod database_mongo;
+mod utils;
+
+use dotenv::dotenv;
+use std::net::{Ipv4Addr, SocketAddr};
+use std::env;
+use axum::{
+    extract::{Query},
+    http::StatusCode,
+    response::IntoResponse,
+    routing::get,
+    AddExtensionLayer, Json, Router,
+};
+use axum::http::{header, HeaderValue};
+use futures::stream::StreamExt;
+use tower_http::set_header::SetResponseHeaderLayer;
+use hyper::Body;
+use rand::rngs::SmallRng;
+use rand::{SeedableRng};
+use yarte::Template;
+use mongodb::{bson::doc, Database};
+use mongodb::options::ClientOptions;
+
+use models_mongo::{World, Fortune};
+use common_handlers::{json, plaintext};
+use utils::{Params, parse_params, random_number, Utf8Html};
+use crate::database_mongo::DatabaseConnection;
+use crate::models_mongo::FortuneInfo;
+
+async fn db(DatabaseConnection(mut db): DatabaseConnection) -> impl IntoResponse {
+    let mut rng = SmallRng::from_entropy();
+    let number = random_number(&mut rng);
+
+    let world = find_world_by_id(&mut db, number).await;
+
+    (StatusCode::OK, Json(world))
+}
+
+async fn find_world_by_id(db: &mut Database, number: i32) -> World {
+    let world_collection = db.collection::<World>("world");
+
+    let filter = doc! { "id": number as f32 };
+
+    let world: World = world_collection.find_one(Some(filter), None).await.expect("world could not be found").unwrap();
+    world
+}
+
+async fn queries(DatabaseConnection(mut db): DatabaseConnection, Query(params): Query<Params>) -> impl IntoResponse {
+    let q = parse_params(params);
+
+    let mut rng = SmallRng::from_entropy();
+
+    let mut results = Vec::with_capacity(q as usize);
+
+    for _ in 0..q {
+        let query_id = random_number(&mut rng);
+
+        let result :World =  find_world_by_id(&mut db, query_id).await;
+
+        results.push(result);
+    }
+
+    (StatusCode::OK, Json(results))
+}
+
+async fn fortunes(DatabaseConnection(db): DatabaseConnection) -> impl IntoResponse {
+    let fortune_collection = db.collection::<Fortune>("fortune");
+
+    let mut fortune_cursor = fortune_collection.find(None, None).await.expect("fortunes could not be loaded");
+
+    let mut fortunes: Vec<Fortune> = Vec::with_capacity(100 as usize);
+
+    while let Some(doc) = fortune_cursor.next().await {
+        fortunes.push(doc.expect("could not load fortune"));
+    }
+
+    fortunes.push(Fortune {
+        id: 0.0,
+        message: "Additional fortune added at request time.".to_string(),
+    });
+
+    fortunes.sort_by(|a, b| a.message.cmp(&b.message));
+
+    let fortune_infos: Vec<FortuneInfo> = fortunes.iter().map(|f| FortuneInfo { id: f.id as i32, message: f.message.clone() }).collect();
+
+    Utf8Html(
+        FortunesTemplate {
+            fortunes: &fortune_infos,
+        }
+        .call()
+        .expect("error rendering template"),
+    )
+}
+
+#[tokio::main]
+async fn main() {
+    dotenv().ok();
+
+    let database_url = env::var("AXUM_TECHEMPOWER_MONGODB_URL").ok()
+        .expect("AXUM_TECHEMPOWER_MONGODB_URL environment variable was not set");
+
+    let addr = SocketAddr::from((Ipv4Addr::UNSPECIFIED, 8000));
+
+    // setup connection pool
+    let mut client_options = ClientOptions::parse(database_url).await.unwrap();
+
+    client_options.max_pool_size = Some(500);
+
+    let app = Router::new()
+        .route("/plaintext", get(plaintext))
+        .route("/json", get(json))
+        .route("/fortunes", get(fortunes))
+        .route("/db", get(db))
+        .route("/queries", get(queries))
+        .layer(AddExtensionLayer::new(client_options))
+        .layer(SetResponseHeaderLayer::<_, Body>::if_not_present(header::SERVER, HeaderValue::from_static("Axum")));
+
+    axum::Server::bind(&addr)
+        .serve(app.into_make_service())
+        .await
+        .unwrap();
+}
+
+#[derive(Template)]
+#[template(path = "fortunes.html.hbs")]
+pub struct FortunesTemplate<'a> {
+    pub fortunes: &'a Vec<FortuneInfo>,
+}

frameworks/Rust/axum/src/main_sqlx.rs

@@ -0,0 +1,147 @@
+extern crate serde_derive;
+extern crate dotenv;
+#[macro_use]
+extern crate async_trait;
+
+mod common_handlers;
+mod models_common;
+mod models_sqlx;
+mod database_sqlx;
+mod utils;
+
+use dotenv::dotenv;
+use std::net::{Ipv4Addr, SocketAddr};
+use std::env;
+use crate::database_sqlx::{DatabaseConnection};
+use axum::{
+    extract::{Query},
+    http::StatusCode,
+    response::IntoResponse,
+    routing::get,
+    AddExtensionLayer, Json, Router,
+};
+use axum::http::{header, HeaderValue};
+use tower_http::set_header::SetResponseHeaderLayer;
+use hyper::Body;
+use rand::rngs::SmallRng;
+use rand::{SeedableRng};
+use sqlx::PgPool;
+use yarte::Template;
+
+use models_sqlx::{World, Fortune};
+use database_sqlx::create_pool;
+use common_handlers::{json, plaintext};
+use utils::{Params, parse_params, random_number, Utf8Html};
+
+async fn db(DatabaseConnection(mut conn): DatabaseConnection) -> impl IntoResponse {
+    let mut rng = SmallRng::from_entropy();
+    let number = random_number(&mut rng);
+
+    let world : World = sqlx::query_as("SELECT id, randomnumber FROM World WHERE id = $1").bind(number)
+        .fetch_one(&mut conn).await.ok().expect("error loading world");
+
+    (StatusCode::OK, Json(world))
+}
+
+async fn queries(DatabaseConnection(mut conn): DatabaseConnection, Query(params): Query<Params>) -> impl IntoResponse {
+    let q = parse_params(params);
+
+    let mut rng = SmallRng::from_entropy();
+
+    let mut results = Vec::with_capacity(q as usize);
+
+    for _ in 0..q {
+        let query_id = random_number(&mut rng);
+
+        let result :World =  sqlx::query_as("SELECT * FROM World WHERE id = $1").bind(query_id)
+            .fetch_one(&mut conn).await.ok().expect("error loading world");
+
+        results.push(result);
+    }
+
+    (StatusCode::OK, Json(results))
+}
+
+async fn fortunes(DatabaseConnection(mut conn): DatabaseConnection) -> impl IntoResponse {
+    let mut fortunes: Vec<Fortune> = sqlx::query_as("SELECT * FROM Fortune").fetch_all(&mut conn).await
+        .ok().expect("Could not load Fortunes");
+
+    fortunes.push(Fortune {
+        id: 0,
+        message: "Additional fortune added at request time.".to_string(),
+    });
+
+    fortunes.sort_by(|a, b| a.message.cmp(&b.message));
+
+    Utf8Html(
+        FortunesTemplate {
+            fortunes: &fortunes,
+        }
+        .call()
+        .expect("error rendering template"),
+    )
+}
+
+async fn updates(DatabaseConnection(mut conn): DatabaseConnection, Query(params): Query<Params>) -> impl IntoResponse {
+    let q = parse_params(params);
+
+    let mut rng = SmallRng::from_entropy();
+
+    let mut results = Vec::with_capacity(q as usize);
+
+    for _ in 0..q {
+        let query_id = random_number(&mut rng);
+        let mut result :World =  sqlx::query_as("SELECT * FROM World WHERE id = $1").bind(query_id)
+            .fetch_one(&mut conn).await.ok().expect("error loading world");
+
+        result.random_number = random_number(&mut rng);
+        results.push(result);
+    }
+
+    for w in &results {
+        sqlx::query("UPDATE World SET randomnumber = $1 WHERE id = $2")
+            .bind(w.random_number).bind(w.id)
+            .execute(&mut conn)
+            .await.ok().expect("could not update world");
+    }
+
+    (StatusCode::OK, Json(results))
+}
+
+#[tokio::main]
+async fn main() {
+    dotenv().ok();
+
+    let database_url = env::var("AXUM_TECHEMPOWER_DATABASE_URL").ok()
+        .expect("AXUM_TECHEMPOWER_DATABASE_URL environment variable was not set");
+
+    let addr = SocketAddr::from((Ipv4Addr::UNSPECIFIED, 8000));
+
+    // setup connection pool
+    let pool = create_pool(database_url).await;
+
+    let app = router(pool).await;
+
+    axum::Server::bind(&addr)
+        .serve(app.into_make_service())
+        .await
+        .unwrap();
+}
+
+async fn router(pool: PgPool) -> Router {
+    Router::new()
+        .route("/plaintext", get(plaintext))
+        .route("/json", get(json))
+        .route("/fortunes", get(fortunes))
+        .route("/db", get(db))
+        .route("/queries", get(queries))
+        .route("/updates", get(updates))
+        .layer(AddExtensionLayer::new(pool))
+        .layer(SetResponseHeaderLayer::<_, Body>::if_not_present(header::SERVER, HeaderValue::from_static("Axum")))
+}
+
+#[derive(Template)]
+#[template(path = "fortunes.html.hbs")]
+pub struct FortunesTemplate<'a> {
+    pub fortunes: &'a Vec<Fortune>,
+}

frameworks/Rust/axum/src/models_bb8.rs

@@ -0,0 +1,22 @@
+use serde::{Deserialize, Serialize};
+use tokio_pg_mapper_derive::PostgresMapper;
+
+#[allow(non_snake_case)]
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize, PostgresMapper)]
+#[pg_mapper(table = "Fortune")]
+pub struct Fortune {
+    pub id: i32,
+    pub message: String
+}
+
+#[allow(non_snake_case)]
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize, PostgresMapper)]
+#[pg_mapper(table = "World")]
+pub struct World {
+    pub id: i32,
+    #[serde(rename = "randomNumber")]
+    pub randomnumber: i32
+}
+
+
+

frameworks/Rust/axum/src/models_common.rs

@@ -0,0 +1,6 @@
+use serde::{Serialize};
+
+#[derive(Serialize)]
+pub struct Message {
+    pub message: &'static str,
+}

frameworks/Rust/axum/src/models_mongo.rs

@@ -0,0 +1,23 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+pub struct Fortune {
+    pub id: f32,
+    pub message: String
+}
+
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+pub struct FortuneInfo {
+    pub id: i32,
+    pub message: String
+}
+
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+pub struct World {
+    pub id: f32,
+    #[serde(rename = "randomNumber")]
+    pub random_number: f32
+}
+
+
+

frameworks/Rust/axum/src/models_sqlx.rs

@@ -0,0 +1,19 @@
+use serde::{Deserialize, Serialize};
+use sqlx::FromRow;
+
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize, FromRow)]
+pub struct Fortune {
+    pub id: i32,
+    pub message: String
+}
+
+#[derive(Clone, Debug, PartialEq, Deserialize, Serialize, FromRow)]
+pub struct World {
+    pub id: i32,
+    #[sqlx(rename = "randomnumber")]
+    #[serde(rename = "randomNumber")]
+    pub random_number: i32
+}
+
+
+

frameworks/Rust/axum/src/utils.rs

@@ -0,0 +1,74 @@
+use std::convert::Infallible;
+use axum::body::{Bytes, Full};
+use axum::http::{header, HeaderValue, Response, StatusCode};
+use axum::response::IntoResponse;
+use rand::Rng;
+use rand::rngs::SmallRng;
+use serde::{Deserialize};
+
+#[derive(Debug, Deserialize)]
+pub struct Params {
+    queries: Option<String>,
+}
+
+pub fn random_number(rng: &mut SmallRng) -> i32 {
+    (rng.gen::<u32>() % 10_000 + 1) as i32
+}
+
+pub fn parse_params(params: Params) -> i32 {
+    let mut q = 0;
+
+    if params.queries.is_some() {
+        let queries = params.queries.ok_or("could not get value").unwrap();
+
+        let queries_as_int = queries.parse::<i32>();
+
+        match queries_as_int {
+            Ok(_ok) => q = queries_as_int.unwrap(),
+            Err(_e) => q = 1,
+        }
+    }
+
+    let q = if q == 0 {
+        1
+    } else if q > 500 {
+        500
+    } else {
+        q
+    };
+
+    q
+}
+
+/// Utility function for mapping any error into a `500 Internal Server Error`
+/// response.
+pub fn internal_error<E>(err: E) -> (StatusCode, String)
+    where
+        E: std::error::Error,
+{
+    (StatusCode::INTERNAL_SERVER_ERROR, err.to_string())
+}
+
+#[derive(Clone, Copy, Debug)]
+pub struct Utf8Html<T>(pub T);
+
+impl<T> IntoResponse for Utf8Html<T>
+    where
+        T: Into<Full<Bytes>>,
+{
+    type Body = Full<Bytes>;
+    type BodyError = Infallible;
+
+    fn into_response(self) -> Response<Self::Body> {
+        let mut res = Response::new(self.0.into());
+        res.headers_mut()
+            .insert(header::CONTENT_TYPE, HeaderValue::from_static("text/html; charset=utf-8"));
+        res
+    }
+}
+
+impl<T> From<T> for Utf8Html<T> {
+    fn from(inner: T) -> Self {
+        Self(inner)
+    }
+}

frameworks/Rust/axum/templates/fortunes.html.hbs

@@ -0,0 +1,5 @@
+<!DOCTYPE html><html><head><title>Fortunes</title></head><body><table><tr><th>id</th><th>message</th></tr>
+      {{~# each fortunes ~}}
+      <tr><td>{{id}}</td><td>{{message}}</td></tr>
+      {{~/each ~}}
+</table></body></html>