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https://github.com/docker/awesome-compose.git
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Feat: add Docker+wasm examples (#309)
* Add a Docker+wasm sample application featuring a WasmEdge-based microservice, a MySQL database and an Nginx web server for frontend UI files. Signed-off-by: Michael Yuan <michael@secondstate.io> * Add a logo to indicate Docker+wasm compatibility. Add project descriptions to README. Signed-off-by: Michael Yuan <michael@secondstate.io> * Add the example for WasmEdge + Kafka / Redpanda + MySQL application to take messages from a queue and save into a database table. Signed-off-by: Michael Yuan <michael@secondstate.io> * Add a SVG icon to indicate Docker + Wasm req Signed-off-by: Michael Yuan <michael@michaelyuan.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update the docker compose files for the new Docker Desktop release Signed-off-by: Michael Yuan <michael@secondstate.io> * Use the correct platform to be compatible with Docker Desktop 4.15 Signed-off-by: Michael Yuan <michael@secondstate.io> * Update README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-kafka-mysql/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-kafka-mysql/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-kafka-mysql/etl/Dockerfile Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Change the Nginx port to the default non-privileged 8090 Signed-off-by: Michael Yuan <michael@secondstate.io> * My apologies. Need to correct the syntax for the Nginx port 8090. Signed-off-by: Michael Yuan <michael@secondstate.io> * Remove commented lines Signed-off-by: Michael Yuan <michael@secondstate.io> * Change wasi/wasm32 to wasi/wasm to conform with the latest spec Signed-off-by: Michael Yuan <michael@secondstate.io> * Update README.md Co-authored-by: Michael Irwin <mikesir87@gmail.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> Signed-off-by: Michael Yuan <michael@secondstate.io> Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Co-authored-by: Michael Irwin <mikesir87@gmail.com>
This commit is contained in:
Michael Yuan
GitHub
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20 changed files with 1057 additions and 0 deletions
13
wasmedge-mysql-nginx/backend/Cargo.toml
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13
wasmedge-mysql-nginx/backend/Cargo.toml
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@ -0,0 +1,13 @@
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[package]
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name = "order_demo_service"
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version = "0.1.0"
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edition = "2021"
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[dependencies]
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anyhow = "1.0"
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serde_json = "1.0"
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serde = { version = "1.0", features = ["derive"] }
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url = "2.3"
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mysql_async_wasi = "0.30"
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hyper_wasi = { version = "0.15", features = ["full"] }
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tokio_wasi = { version = "1", features = ["io-util", "fs", "net", "time", "rt", "macros"] }
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29
wasmedge-mysql-nginx/backend/Dockerfile
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29
wasmedge-mysql-nginx/backend/Dockerfile
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@ -0,0 +1,29 @@
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# syntax=docker/dockerfile:1
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FROM --platform=$BUILDPLATFORM rust:1.64 AS buildbase
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WORKDIR /src
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RUN <<EOT bash
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set -ex
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apt-get update
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apt-get install -y \
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git \
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clang
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rustup target add wasm32-wasi
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EOT
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# This line installs WasmEdge including the AOT compiler
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RUN curl -sSf https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/utils/install.sh | bash
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FROM buildbase AS build
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COPY Cargo.toml .
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COPY src ./src
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# Build the Wasm binary
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RUN --mount=type=cache,target=/usr/local/cargo/git/db \
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--mount=type=cache,target=/usr/local/cargo/registry/cache \
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--mount=type=cache,target=/usr/local/cargo/registry/index \
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cargo build --target wasm32-wasi --release
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# This line builds the AOT Wasm binary
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RUN /root/.wasmedge/bin/wasmedgec target/wasm32-wasi/release/order_demo_service.wasm order_demo_service.wasm
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FROM scratch
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ENTRYPOINT [ "order_demo_service.wasm" ]
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COPY --link --from=build /src/order_demo_service.wasm /order_demo_service.wasm
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237
wasmedge-mysql-nginx/backend/src/main.rs
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237
wasmedge-mysql-nginx/backend/src/main.rs
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use hyper::service::{make_service_fn, service_fn};
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use hyper::{Body, Method, Request, Response, StatusCode, Server};
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pub use mysql_async::prelude::*;
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pub use mysql_async::*;
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use std::convert::Infallible;
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use std::net::SocketAddr;
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use std::result::Result;
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use std::collections::HashMap;
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use serde::{Deserialize, Serialize};
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fn get_url() -> String {
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if let Ok(url) = std::env::var("DATABASE_URL") {
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let opts = Opts::from_url(&url).expect("DATABASE_URL invalid");
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if opts
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.db_name()
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.expect("a database name is required")
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.is_empty()
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{
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panic!("database name is empty");
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}
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url
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} else {
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"mysql://root:pass@127.0.0.1:3306/mysql".into()
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}
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}
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#[derive(Serialize, Deserialize, Debug)]
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struct Order {
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order_id: i32,
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product_id: i32,
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quantity: i32,
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amount: f32,
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shipping: f32,
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tax: f32,
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shipping_address: String,
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}
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impl Order {
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fn new(
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order_id: i32,
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product_id: i32,
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quantity: i32,
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amount: f32,
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shipping: f32,
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tax: f32,
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shipping_address: String,
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) -> Self {
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Self {
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order_id,
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product_id,
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quantity,
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amount,
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shipping,
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tax,
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shipping_address,
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}
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}
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}
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async fn handle_request(req: Request<Body>, pool: Pool) -> Result<Response<Body>, anyhow::Error> {
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match (req.method(), req.uri().path()) {
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(&Method::GET, "/") => Ok(Response::new(Body::from(
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"The valid endpoints are /init /create_order /create_orders /update_order /orders /delete_order",
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))),
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// Simply echo the body back to the client.
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(&Method::POST, "/echo") => Ok(Response::new(req.into_body())),
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// CORS OPTIONS
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(&Method::OPTIONS, "/init") => Ok(response_build(&String::from(""))),
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(&Method::OPTIONS, "/create_order") => Ok(response_build(&String::from(""))),
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(&Method::OPTIONS, "/create_orders") => Ok(response_build(&String::from(""))),
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(&Method::OPTIONS, "/update_order") => Ok(response_build(&String::from(""))),
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(&Method::OPTIONS, "/delete_order") => Ok(response_build(&String::from(""))),
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(&Method::OPTIONS, "/orders") => Ok(response_build(&String::from(""))),
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(&Method::GET, "/init") => {
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let mut conn = pool.get_conn().await.unwrap();
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"DROP TABLE IF EXISTS orders;".ignore(&mut conn).await?;
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"CREATE TABLE orders (order_id INT, product_id INT, quantity INT, amount FLOAT, shipping FLOAT, tax FLOAT, shipping_address VARCHAR(20));".ignore(&mut conn).await?;
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drop(conn);
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Ok(response_build("{\"status\":true}"))
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}
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(&Method::POST, "/create_order") => {
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let mut conn = pool.get_conn().await.unwrap();
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let byte_stream = hyper::body::to_bytes(req).await?;
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let order: Order = serde_json::from_slice(&byte_stream).unwrap();
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"INSERT INTO orders (order_id, product_id, quantity, amount, shipping, tax, shipping_address) VALUES (:order_id, :product_id, :quantity, :amount, :shipping, :tax, :shipping_address)"
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.with(params! {
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"order_id" => order.order_id,
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"product_id" => order.product_id,
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"quantity" => order.quantity,
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"amount" => order.amount,
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"shipping" => order.shipping,
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"tax" => order.tax,
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"shipping_address" => &order.shipping_address,
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})
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.ignore(&mut conn)
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.await?;
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drop(conn);
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Ok(response_build("{\"status\":true}"))
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}
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(&Method::POST, "/create_orders") => {
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let mut conn = pool.get_conn().await.unwrap();
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let byte_stream = hyper::body::to_bytes(req).await?;
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let orders: Vec<Order> = serde_json::from_slice(&byte_stream).unwrap();
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"INSERT INTO orders (order_id, product_id, quantity, amount, shipping, tax, shipping_address) VALUES (:order_id, :product_id, :quantity, :amount, :shipping, :tax, :shipping_address)"
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.with(orders.iter().map(|order| {
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params! {
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"order_id" => order.order_id,
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"product_id" => order.product_id,
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"quantity" => order.quantity,
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"amount" => order.amount,
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"shipping" => order.shipping,
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"tax" => order.tax,
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"shipping_address" => &order.shipping_address,
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}
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}))
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.batch(&mut conn)
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.await?;
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drop(conn);
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Ok(response_build("{\"status\":true}"))
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}
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(&Method::POST, "/update_order") => {
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let mut conn = pool.get_conn().await.unwrap();
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let byte_stream = hyper::body::to_bytes(req).await?;
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let order: Order = serde_json::from_slice(&byte_stream).unwrap();
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"UPDATE orders SET product_id=:product_id, quantity=:quantity, amount=:amount, shipping=:shipping, tax=:tax, shipping_address=:shipping_address WHERE order_id=:order_id"
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.with(params! {
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"product_id" => order.product_id,
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"quantity" => order.quantity,
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"amount" => order.amount,
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"shipping" => order.shipping,
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"tax" => order.tax,
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"shipping_address" => &order.shipping_address,
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"order_id" => order.order_id,
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})
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.ignore(&mut conn)
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.await?;
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drop(conn);
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Ok(response_build("{\"status\":true}"))
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}
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(&Method::GET, "/orders") => {
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let mut conn = pool.get_conn().await.unwrap();
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let orders = "SELECT * FROM orders"
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.with(())
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.map(&mut conn, |(order_id, product_id, quantity, amount, shipping, tax, shipping_address)| {
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Order::new(
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order_id,
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product_id,
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quantity,
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amount,
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shipping,
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tax,
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shipping_address,
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)},
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).await?;
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drop(conn);
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Ok(response_build(serde_json::to_string(&orders)?.as_str()))
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}
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(&Method::GET, "/delete_order") => {
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let mut conn = pool.get_conn().await.unwrap();
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let params: HashMap<String, String> = req.uri().query().map(|v| {
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url::form_urlencoded::parse(v.as_bytes()).into_owned().collect()
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}).unwrap_or_else(HashMap::new);
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let order_id = params.get("id");
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"DELETE FROM orders WHERE order_id=:order_id"
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.with(params! { "order_id" => order_id, })
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.ignore(&mut conn)
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.await?;
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drop(conn);
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Ok(response_build("{\"status\":true}"))
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}
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// Return the 404 Not Found for other routes.
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_ => {
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let mut not_found = Response::default();
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*not_found.status_mut() = StatusCode::NOT_FOUND;
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Ok(not_found)
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}
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}
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}
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// CORS headers
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fn response_build(body: &str) -> Response<Body> {
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Response::builder()
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.header("Access-Control-Allow-Origin", "*")
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.header("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
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.header("Access-Control-Allow-Headers", "api,Keep-Alive,User-Agent,Content-Type")
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.body(Body::from(body.to_owned()))
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.unwrap()
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}
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#[tokio::main(flavor = "current_thread")]
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async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
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let opts = Opts::from_url(&*get_url()).unwrap();
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let builder = OptsBuilder::from_opts(opts);
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// The connection pool will have a min of 5 and max of 10 connections.
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let constraints = PoolConstraints::new(5, 10).unwrap();
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let pool_opts = PoolOpts::default().with_constraints(constraints);
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let pool = Pool::new(builder.pool_opts(pool_opts));
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let addr = SocketAddr::from(([0, 0, 0, 0], 8080));
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let make_svc = make_service_fn(|_| {
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let pool = pool.clone();
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async move {
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Ok::<_, Infallible>(service_fn(move |req| {
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let pool = pool.clone();
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handle_request(req, pool)
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}))
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}
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});
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let server = Server::bind(&addr).serve(make_svc);
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if let Err(e) = server.await {
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eprintln!("server error: {}", e);
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}
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Ok(())
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}
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