Struct FileStore 

pub struct FileStore { /* private fields */ }

OpenDAL-backed file storage for the proxy server.

Supports any OpenDAL backend (memory, S3, GCS, local filesystem, etc.) through the FileStorageConfig backend configuration.

Implementations

impl FileStore

pub fn from_config(config: &FileStorageConfig) -> Result<Self, String>

Build a FileStore from proxy file storage configuration.

Parses the backend scheme from config.backend, builds an OpenDAL operator with the provided backend_config, and stores config.prefix for path prefixing.

Errors

Returns an error string if the scheme is unknown or the operator cannot be constructed.

pub async fn write(&self, key: &str, data: Bytes) -> Result<(), String>

Write data to the store under the given key.

Errors

Returns an error string if the write operation fails.

pub async fn read(&self, key: &str) -> Result<Bytes, String>

Read data from the store for the given key.

Errors

Returns an error string if the key does not exist or the read fails.

pub async fn delete(&self, key: &str) -> Result<(), String>

Delete a key from the store.

Errors

Returns an error string if the delete operation fails.

pub async fn list(&self, prefix: Option<&str>) -> Result<Vec<String>, String>

List keys under an optional prefix (relative to the store prefix).

Returns the full key paths (without the store prefix).

Errors

Returns an error string if the list operation fails.

pub async fn exists(&self, key: &str) -> Result<bool, String>

Check whether a key exists in the store.

Errors

Returns an error string if the existence check fails.