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axum-restful

A restful framework based on axum and sea-orm. Inspired by django-rest-framework.

The goal of the project is to build an enterprise-level production framework.

Features

  • a Trait for the struct generated by sea-orm to provide with GET, PUT, DELETE methods
  • tls support
  • prometheus metrics and metrics server
  • graceful shutdownsupport
  • swagger document generate based on aide

Quick start

A full example is exists at axum-restful/examples/demo.

First, you can create a new crate like cargo new axum-restful-demo.

Build a database service

You should have a database service before. It is recommended to use postgresql database.

you can use docker and docker compose to start a postgresql

create a compose.yaml in the same directory as Cargo.toml

services:
  postgres:
    image: postgres:15-bullseye
    container_name: demo-postgres
    restart: always
    volumes:
      - demo-postgres:/var/lib/postgresql/data
    ports:
      - "127.0.0.1:5432:5432"
    environment:
      - POSTGRES_DB=${POSTGRES_DB}
      - POSTGRES_USER=${POSTGRES_USER}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}

volumes:
  demo-postgres: {}

a .envfile like

# config the base pg connect params
POSTGRES_DB=demo
POSTGRES_USER=demo-user
POSTGRES_PASSWORD=demo-password

# used by axum-restful framework to specific a database connection
DATABASE_URL=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@localhost:5432/${POSTGRES_DB}

finally, you can build a service with docker compose up -d

Write and migrate a migration

For more details, please refer to the sea-orm documentation.

Install the sea-orm-cli with cargo

$ cargo install sea-orm-cli

Configure dependencies and workspace in Cargo.toml

[package]
name = "demo"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[workspace]
members = [".", "migration"]

[dependencies]
aide = "0.13"
axum = "0.7"
axum-restful = "0.5"
chrono = "0.4"
migration = { path = "./migration" }
once_cell = "1"
schemars = { version = "0.8", features = ["chrono"] }
sea-orm = { version = "0.12", features = ["macros", "sqlx-postgres", "runtime-tokio-rustls"] }
sea-orm-migration = { version = "0.12", features = ["sqlx-postgres", "runtime-tokio-rustls",] }
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
tokio = { version = "1", features = ["full"] }
tracing = "0.1"
tracing-subscriber = "0.3"

Setup the migration directory in ./migration

$ sea-orm-cli migrate init

project structure changed into

├── Cargo.lock
├── Cargo.toml
├── compose.yaml
├── migration
│   ├── Cargo.toml
│   ├── README.md
│   └── src
│       ├── lib.rs
│       ├── m20220101_000001_create_table.rs
│       └── main.rs
└── src
    └── main.rs

edit the m20****_******_create_table.rs file blow ./migration/src

use sea_orm_migration::prelude::*;

#[derive(DeriveMigrationName)]
pub struct Migration;

#[async_trait::async_trait]
impl MigrationTrait for Migration {
    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        // Replace the sample below with your own migration scripts
        manager
            .create_table(
                Table::create()
                    .table(Student::Table)
                    .if_not_exists()
                    .col(
                        ColumnDef::new(Student::Id)
                            .big_integer()
                            .not_null()
                            .auto_increment()
                            .primary_key(),
                    )
                    .col(ColumnDef::new(Student::Name).string().not_null())
                    .col(ColumnDef::new(Student::Region).string().not_null())
                    .col(ColumnDef::new(Student::Age).small_integer().not_null())
                    .col(ColumnDef::new(Student::CreateTime).date_time().not_null())
                    .col(ColumnDef::new(Student::Score).double().not_null())
                    .col(
                        ColumnDef::new(Student::Gender)
                            .boolean()
                            .not_null()
                            .default(Expr::value(true)),
                    )
                    .to_owned(),
            )
            .await
    }

    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        // Replace the sample below with your own migration scripts

        manager
            .drop_table(Table::drop().table(Student::Table).to_owned())
            .await
    }
}

/// Learn more at https://docs.rs/sea-query#iden
#[derive(Iden)]
enum Student {
    Table,
    Id,
    Name,
    Region,
    Age,
    CreateTime,
    Score,
    Gender,
}

edit migration/Cargo.toml to add dependencies

[dependencies]
...
axum-restful = "0.5"

edit migration/src/main.rs to specific a database connection an migrate

use sea_orm_migration::prelude::*;

#[async_std::main]
async fn main() {
    // cli::run_cli(migration::Migrator).await;
    let db = axum_restful::get_db_connection_pool().await;
    migration::Migrator::up(db, None).await.unwrap();
}

migrate the migration files

$ cd migration
$ cargo run

finally, you can see two tables named sql_migrations and studentgenerated.

Generate entities

at the project root path

$ sea-orm-cli generate entity -o src/entities

will generate entities configure and code, now project structure changed into

├── Cargo.lock
├── Cargo.toml
├── compose.yaml
├── migration
│   ├── Cargo.toml
│   ├── README.md
│   └── src
│       ├── lib.rs
│       ├── m20220101_000001_create_table.rs
│       └── main.rs
└── src
    ├── entities
    │   ├── mod.rs
    │   ├── prelude.rs
    │   └── student.rs
    └── main.rs

edit the src/entities/student.rs to add derive Default, Serialize, Deserialize

//! `SeaORM` Entity. Generated by sea-orm-codegen 0.11.0

use schemars::JsonSchema;
use sea_orm::entity::prelude::*;
use serde::{Deserialize, Serialize};

#[derive(Clone, Debug, PartialEq, JsonSchema, DeriveEntityModel, Serialize, Deserialize)]
#[sea_orm(table_name = "student")]
pub struct Model {
    #[sea_orm(primary_key)]
    pub id: i64,
    pub name: String,
    pub region: String,
    pub age: i16,
    pub create_time: DateTime,
    #[sea_orm(column_type = "Double")]
    pub score: f64,
    pub gender: bool,
}

#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {}

impl ActiveModelBehavior for ActiveModel {}

edit src/main.rs

use schemars::JsonSchema;
use sea_orm_migration::prelude::MigratorTrait;
use tokio::net::TcpListener;

use axum_restful::swagger::SwaggerGeneratorExt;
use axum_restful::views::ModelViewExt;

use crate::entities::student;

mod check;
mod entities;

#[tokio::main]
async fn main() {
    tracing_subscriber::fmt::init();
    let db = axum_restful::get_db_connection_pool().await;
    let _ = migration::Migrator::down(db, None).await;
    migration::Migrator::up(db, None).await.unwrap();
    tracing::info!("migrate success");

    aide::gen::on_error(|error| {
        tracing::error!("swagger api gen error: {error}");
    });
    aide::gen::extract_schemas(true);

    /// student
    #[derive(JsonSchema)]
    struct StudentView;

    impl ModelViewExt<student::ActiveModel> for StudentView {
        fn order_by_desc() -> student::Column {
            student::Column::Id
        }
    }

    let path = "/api/student";
    let app = StudentView::http_router(path);
    check::check_curd_operate_correct(app.clone(), path, db).await;

    // if you want to generate swagger docs
    // impl OperationInput and SwaggerGenerator and change app into http_routers_with_swagger
    impl aide::operation::OperationInput for student::Model {}
    impl axum_restful::swagger::SwaggerGeneratorExt<student::ActiveModel> for StudentView {}
    let app = StudentView::http_router_with_swagger(path, StudentView::model_api_router()).await.unwrap();

    let addr = "0.0.0.0:3000";
    tracing::info!("listen at {addr}");
    tracing::info!("visit http://127.0.0.1:3000/docs/swagger/ for swagger api");
    let listener = TcpListener::bind(addr).await.unwrap();
    axum::serve(listener, app.into_make_service()).await.unwrap();
}

StudentView impl the ModelView<T>, the T is student::ActiveModel that represent the student table configure in the database, if will has full HTTP methods with GET, POST, PUT, DELETE.

you can see the server is listen at port 3000

Verify the service

Swagger

if you impl axum_restful::swagger::SwaggerGenerator above, then you can visit http://127.0.0.1:3000/docs/swagger/ at your browser, you will see a swagger document is generated

swagger-ui

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

axum-restful's People

Contributors

gongzhengyang avatar

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