base on Drop-in embedded database in Rust # Native DB [](https://github.com/vincent-herlemont/native_db/actions/workflows/build_test_linux.yml) [](https://github.com/vincent-herlemont/native_db/actions/workflows/build_test_macos.yml) [](https://github.com/vincent-herlemont/native_db/actions/workflows/build_test_windows.yml) [](https://github.com/vincent-herlemont/native_db/actions/workflows/build_test_ios.yml) [](https://github.com/vincent-herlemont/native_db/actions/workflows/build_test_android.yml) [](https://crates.io/crates/native_db) [](https://docs.rs/native_db) [](LICENSE) Here's a drop-in, fast, embedded database for multi-platform apps (server, desktop, mobile). Sync Rust types effortlessly. Enjoy! 😌🍃. # Features - Simple API 🦀. - Support for **multiple indexes** (primary, secondary, unique, non-unique, optional). - Fast, see [`sqlite` vs `redb` vs `native_db`](./benches/README.md) benchmarks. - Transparent serialization/deserialization using [native_model](https://github.com/vincent-herlemont/native_model). You can use any serialization library you want (`bincode`, `postcard`, your own etc.). - Ensure query **type safety** to prevent unexpected results caused by selecting with an incorrect type. - **Automatic model migration** 🌟. - **Thread-safe** and fully **ACID-compliant** transactions provided by [redb](https://github.com/cberner/redb). - **Real-time** subscription with filters for `insert`, `update` and `delete` operations. - Compatible with all Rust types (`enum`, `struct`, `tuple` etc.). - **Hot snapshots**. # Installation Add this to your `Cargo.toml`: ```toml [dependencies] native_db = "0.8.1" native_model = "0.4.20" ``` NOTE: `native_db` requires `native_model` to work. # Status Active development. The API is not stable yet and may change in the future. # How to use? - [Documentation API](https://docs.rs/native_db/latest/native_db/#api) - [Quick Start](https://docs.rs/native_db/latest/native_db/#quick_start) - Full example with Tauri: [native_db_tauri_vanilla](https://github.com/vincent-herlemont/native_db_tauri_vanilla) # Projects using Native DB - [polly-scheduler](https://github.com/dongbin86/polly-scheduler) - [Oku](https://okubrowser.github.io) If you want to propose your project or company that uses Native DB, please open a PR. # Example ```rust use serde::{Deserialize, Serialize}; use native_db::*; use native_model::{native_model, Model}; use once_cell::sync::Lazy; #[derive(Serialize, Deserialize, PartialEq, Debug)] #[native_model(id = 1, version = 1)] #[native_db] struct Item { #[primary_key] id: u32, #[secondary_key] name: String, } // Define the models // The lifetime of the models needs to be longer or equal to the lifetime of the database. // In many cases, it is simpler to use a static variable but it is not mandatory. static MODELS: Lazy<Models> = Lazy::new(|| { let mut models = Models::new(); models.define::<Item>().unwrap(); models }); fn main() -> Result<(), db_type::Error> { // Create a database in memory let mut db = Builder::new().create_in_memory(&MODELS)?; // Insert data (open a read-write transaction) let rw = db.rw_transaction()?; rw.insert(Item { id: 1, name: "red".to_string() })?; rw.insert(Item { id: 2, name: "green".to_string() })?; rw.insert(Item { id: 3, name: "blue".to_string() })?; rw.commit()?; // Open a read-only transaction let r = db.r_transaction()?; // Retrieve data with id=3 let retrieve_data: Item = r.get().primary(3_u32)?.unwrap(); println!("data id='3': {:?}", retrieve_data); // Iterate items with name starting with "red" for item in r.scan().secondary::<Item>(ItemKey::name)?.start_with("red")? { println!("data name=\"red\": {:?}", item); } // Remove data (open a read-write transaction) let rw = db.rw_transaction()?; rw.remove(retrieve_data)?; rw.commit()?; Ok(()) } ``` ", Assign "at most 3 tags" to the expected json: {"id":"6185","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"