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107 lines
2.6 KiB
Markdown
107 lines
2.6 KiB
Markdown
# Kenaito Config Center Rust Client
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Rust client SDK for the Kenaito Config Center, suitable for Rust 2021 edition projects.
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## Features
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- Fetch application configs from the config center
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- Periodic config sync
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- Config change callback listener
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- Local file cache (fallback when config center is unavailable)
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## Dependencies
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- Rust 2021 edition
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- reqwest (HTTP client)
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- serde / serde_json (JSON processing)
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## Usage
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Add to your `Cargo.toml`:
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```toml
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[dependencies]
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kenaito-conf-client = { path = "../kenaito-conf-rust-client" }
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```
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```rust
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use kenaito_conf_client::{Config, Client};
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fn main() {
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let config = Config {
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base_url: "http://localhost:8080".to_string(),
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app_name: "my-app".to_string(),
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env: "daily".to_string(),
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sync_interval: 10,
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cache_dir: ".".to_string(),
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..Default::default()
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};
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let client = Client::new(config);
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// Listen for config changes
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client.on_change(|changed| {
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println!("Config changed:");
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for (k, v) in changed {
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println!(" {} = {}", k, v);
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}
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});
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// Start client
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if let Err(e) = client.start() {
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eprintln!("Failed to start: {}", e);
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return;
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}
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// Get config
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let db_host = client.get("database.host");
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println!("database.host = {}", db_host);
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// Get all configs
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let all = client.get_all();
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for (k, v) in &all {
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println!("{} = {}", k, v);
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}
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// Manual sync
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client.sync_once();
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// Stop
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client.stop();
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}
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```
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## Configuration
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| Parameter | Type | Description | Default |
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|-----------|------|-------------|---------|
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| `base_url` | String | Config center URL | `http://localhost:8080` |
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| `app_name` | String | Application name | (Required) |
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| `env` | String | Environment | `dev` |
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| `version` | String | Config version | `latest` |
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| `token` | String | App token | Empty |
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| `sync_interval` | u64 | Sync interval (seconds) | `60` |
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| `ignore_global` | bool | Whether to ignore global configs | `false` |
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| `cache_dir` | String | Cache directory | `.` |
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## Demo
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```bash
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cd kenaito-conf-rust-client-demo
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cargo run
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```
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## Environment Variables
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The demo supports the following environment variables:
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| Variable | Description | Default |
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|----------|-------------|---------|
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| `KENAITO_BASE_URL` | Config center URL | `http://localhost:8080` |
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| `KENAITO_APP_NAME` | Application name | `kenaito-springboot-demo` |
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| `KENAITO_ENV` | Environment | `daily` |
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| `KENAITO_VERSION` | Config version | `latest` |
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| `KENAITO_TOKEN` | App token | Empty |
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| `KENAITO_SYNC_INTERVAL` | Sync interval (seconds) | `10` |
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| `KENAITO_CACHE_DIR` | Cache directory | `.` |
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