title: "Rust Web Rokcet 系列 1 Hello，World！与 GET，POST，PUT，DELETE"
subtitle: ""
slug: "rust-rocket1"
date: 2022-02-14T13:17:43+08:00
lastmod: 2022-02-14T13:17:43+08:00
draft: false
description: ""

tags: ["Rust","Web","Rocket"]
categories: ["Rust"]

featuredImage: ""
featuredImagePreview: ""

hiddenFromHomePage: false

lightgallery: true

series: ["Rust Web Rokcet"]
series_weight: 1

PS D:\cms> cargo new teach_used
     Created binary (application) `teach_used` package
PS D:\cms> code .\teach_used\

rocket = { version = "0.5.0-rc.1",features = ["json"]}

#[macro_use] extern crate rocket;

#[get("/")]
fn index() -> &'static str {
    "Hello, world!"
}

#[launch]
fn rocket() -> _ {
    rocket::build().mount("/", routes![index])
}

use rocket::serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, Clone, Debug)]
#[serde(crate = "rocket::serde")]
pub struct Article {
    pub id: usize,
    pub title: String,
    pub author: String,
    pub content: String,
    pub created_at: String,
}

use rocket::serde::json::{serde_json::json, Json, Value};
use rocket::{delete, get, post, put};

use crate::module::Article;

#[get("/")]
pub fn index() -> &'static str {
    "Hello, world!"
}

#[get("/api")]
pub async fn get_article_list() -> Value {
    json!({"res": "Test Success!"})
}

#[get("/api/<in_id>")]
pub async fn get_article_by_id(in_id: usize) -> Option<Json<Article>> {
    Some(Json(Article {
        id: in_id,
        title: "a title".to_string(),
        author: "恐咖兵糖".to_string(),
        content: "一些内容".to_string(),
        created_at: "2022-02-14 ".to_string(),
    }))
}

#[post("/api", format = "json", data = "<article>")]
pub async fn post_article(article: Json<Article>) -> Value {
    json!({"res": "Post Success!","post": format!("{:?}", article) })
}

#[put("/api/<in_id>", format = "json", data = "<article>")]
pub async fn put_article(in_id: usize, article: Json<Article>) -> Value {
    json!({"res": "Put Success!","id": in_id,"put": format!("{:?}",article) })
}

#[delete("/api/<in_id>")]
pub async fn delete_article(in_id: usize) -> Value {
    json!({"res": "Delect Success","id": in_id })
}

#[macro_use]
extern crate rocket;

mod module;
mod routes;

use routes::*;

#[launch]
fn rocket() -> _ {
    rocket::build()
        .mount("/", routes![index])
        // add api
        .mount("/", routes![get_article_list, get_article_by_id])
        .mount("/", routes![post_article, delete_article, put_article])
}