Created
December 20, 2020 22:30
-
-
Save silen-z/f411a9fb113a217c00f2c302340ee97a to your computer and use it in GitHub Desktop.
Actix + Rkv
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
use std::sync::{Arc, RwLock}; | |
use actix_web::{get, post, web, App, Error, HttpServer}; | |
use rkv::backend::{SafeMode, SafeModeDatabase, SafeModeEnvironment}; | |
use rkv::{Manager, Rkv, SingleStore, StoreOptions, Value}; | |
use serde::{Deserialize, Serialize}; | |
#[derive(Debug, Serialize, Deserialize)] | |
struct SomeData { | |
number: u32, | |
string: String, | |
} | |
struct RkvStore { | |
manager: Arc<RwLock<Rkv<SafeModeEnvironment>>>, | |
store: SingleStore<SafeModeDatabase>, | |
} | |
impl RkvStore { | |
fn new() -> Self { | |
let path = std::env::current_dir().unwrap(); | |
let mut manager = Manager::<SafeModeEnvironment>::singleton().write().unwrap(); | |
let created_arc = manager | |
.get_or_create(path.as_ref(), Rkv::new::<SafeMode>) | |
.unwrap(); | |
let store = { | |
let env = created_arc.read().unwrap(); | |
env.open_single("mydb", StoreOptions::create()).unwrap() | |
}; | |
RkvStore { | |
manager: created_arc, | |
store, | |
} | |
} | |
} | |
#[post("/{key}")] | |
async fn save_value( | |
params: web::Path<(String,)>, | |
data: web::Json<SomeData>, | |
rkv: web::Data<RkvStore>, | |
) -> Result<String, Error> { | |
let (key,) = params.into_inner(); | |
let env = rkv.manager.read()?; | |
let mut writer = env.write().unwrap(); | |
let encoded = bincode::serialize(&data.into_inner()).unwrap(); | |
rkv.store | |
.put(&mut writer, &key, &Value::Blob(&encoded)) | |
.unwrap(); | |
writer.commit().unwrap(); | |
Ok("value saved".to_owned()) | |
} | |
#[get("/{key}")] | |
async fn load_value(params: web::Path<(String,)>, rkv: web::Data<RkvStore>) -> String { | |
let (key,) = params.into_inner(); | |
let env = rkv.manager.read().unwrap(); | |
let reader = env.read().unwrap(); | |
match rkv.store.get(&reader, &key).unwrap() { | |
Some(Value::Blob(encoded)) => { | |
let data: SomeData = bincode::deserialize(encoded).unwrap(); | |
format!("found {:?}!", data) | |
} | |
Some(_) => panic!(), | |
None => "no value found".to_owned(), | |
} | |
} | |
#[actix_web::main] | |
async fn main() -> std::io::Result<()> { | |
HttpServer::new(|| { | |
App::new() | |
.data(RkvStore::new()) | |
.service(save_value) | |
.service(load_value) | |
}) | |
.bind("127.0.0.1:8080")? | |
.run() | |
.await | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment