1 unstable release
0.1.0 | Apr 17, 2023 |
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#19 in #stored
12KB
120 lines
Artifacts Crate
A crate for managing shared read/write access to data stored in a JSON file. The Artifact
struct supports initializing the data from a JSON file, getting a read lock on the data, updating the data, and watching for changes on the file to automatically reload the data at a specified interval.
Usage
- Add the following to your
Cargo.toml
file:
[dependencies]
artifacts-crate = "0.1.0"
- Define your struct and make sure it implements DeserializeOwned:
#[derive(Deserialize, Debug)]
struct ExampleStruct {
field1: String,
field2: u32,
}
- Initialize the Artifact with your struct:
pub static EXAMPLE_LIST: Artifact<ExampleStruct> = Artifact::new();
- In your main function or another appropriate place, initialize the Artifact data and spawn the watch task:
#[tokio::main]
async fn main() {
// Initialize the EXAMPLE_LIST data
EXAMPLE_LIST.init("example.json").await.unwrap();
// Spawn a background task to watch and reload the EXAMPLE_LIST data every 6 hours
tokio::spawn(EXAMPLE_LIST.watch("example.json".to_string(), 6 * 60 * 60));
// Example of getting the data
{
let example_data = EXAMPLE_LIST.get().await.unwrap();
println!("Example data: {:?}", *example_data);
}
// Example of updating the data
{
let new_data = ExampleStruct { field1: "New field1 value".to_string(), field2: 42 };
EXAMPLE_LIST.update(new_data).await.unwrap();
}
}
For more details, please refer to the crate documentation or read the comments in the source code.
License
This project is licensed under the MIT License.
Dependencies
~3–10MB
~94K SLoC