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use cloudflare::endpoints::workerskv::list_namespace_keys::ListNamespaceKeys; | ||
use cloudflare::endpoints::workerskv::list_namespace_keys::ListNamespaceKeysParams; | ||
use cloudflare::endpoints::workerskv::Key; | ||
use cloudflare::framework::apiclient::ApiClient; | ||
use cloudflare::framework::response::ApiFailure; | ||
use cloudflare::framework::HttpApiClient; | ||
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use serde_json::value::Value as JsonValue; | ||
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use crate::settings::project::Project; | ||
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pub struct KeyList { | ||
keys_result: Option<Vec<Key>>, | ||
prefix: Option<String>, | ||
client: HttpApiClient, | ||
account_id: String, | ||
namespace_id: String, | ||
cursor: Option<String>, | ||
init_fetch: bool, | ||
} | ||
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impl KeyList { | ||
pub fn new( | ||
project: &Project, | ||
client: HttpApiClient, | ||
namespace_id: &str, | ||
prefix: Option<&str>, | ||
) -> KeyList { | ||
KeyList { | ||
keys_result: None, | ||
prefix: prefix.map(str::to_string), | ||
client, | ||
account_id: project.account_id.to_owned(), | ||
namespace_id: namespace_id.to_string(), | ||
cursor: None, | ||
init_fetch: false, | ||
} | ||
} | ||
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fn request_params(&self) -> ListNamespaceKeys { | ||
let params = ListNamespaceKeysParams { | ||
limit: None, // Defaults to 1000 (the maximum) | ||
cursor: self.cursor.to_owned(), | ||
prefix: self.prefix.to_owned(), | ||
}; | ||
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ListNamespaceKeys { | ||
account_identifier: &self.account_id, | ||
namespace_identifier: &self.namespace_id, | ||
params: params, | ||
} | ||
} | ||
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fn get_batch(&mut self) -> Result<Vec<Key>, ApiFailure> { | ||
let response = self.client.request(&self.request_params()); | ||
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match response { | ||
Ok(success) => { | ||
self.cursor = extract_cursor(success.result_info.clone()); | ||
log::info!("{:?}", self.cursor); | ||
Ok(success.result) | ||
} | ||
Err(e) => Err(e), | ||
} | ||
} | ||
} | ||
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impl Iterator for KeyList { | ||
type Item = Result<Key, ApiFailure>; | ||
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fn next(&mut self) -> Option<Self::Item> { | ||
// Attempt to extract next key from vector of keys in KeyList. | ||
// If no key vector or no keys left, go to fallback case below to | ||
// attempt to fetch the next page of keys from the Workers KV API. | ||
if let Some(mut keys) = self.keys_result.to_owned() { | ||
let key = keys.pop(); | ||
self.keys_result = Some(keys); | ||
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if let Some(k) = key { | ||
return Some(Ok(k)); | ||
} | ||
} | ||
// Fallback case (if no remaining keys are found) | ||
if self.cursor.is_none() && self.init_fetch { | ||
None // Nothing left to fetch | ||
} else { | ||
if !self.init_fetch { | ||
// At this point, initial fetch is being performed. | ||
self.init_fetch = true; | ||
} | ||
match self.get_batch() { | ||
Ok(mut keys) => { | ||
let key = keys.pop(); | ||
self.keys_result = Some(keys); | ||
match key { | ||
Some(k) => Some(Ok(k)), | ||
None => None, | ||
} | ||
} | ||
Err(e) => Some(Err(e)), | ||
} | ||
} | ||
} | ||
} | ||
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// Returns Some(cursor) if cursor is non-empty, otherwise returns None. | ||
fn extract_cursor(result_info: Option<JsonValue>) -> Option<String> { | ||
let result_info = result_info.unwrap(); | ||
let returned_cursor_value = &result_info["cursor"]; | ||
let returned_cursor = returned_cursor_value.as_str().unwrap().to_string(); | ||
if returned_cursor.is_empty() { | ||
None | ||
} else { | ||
Some(returned_cursor) | ||
} | ||
} |
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@@ -1,9 +1,11 @@ | ||
mod delete; | ||
mod get; | ||
mod key_list; | ||
mod list; | ||
mod put; | ||
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pub use delete::delete; | ||
pub use get::get; | ||
pub use key_list::KeyList; | ||
pub use list::list; | ||
pub use put::put; |