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use std::collections::HashMap;
use anyhow::{anyhow, Result};
use bytes::Bytes;
use log::*;
use reqwest::StatusCode;
use serde::{Deserialize, Serialize};
use crate::{Consul, WithIndex};
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
#[serde(rename_all = "PascalCase")]
pub struct KvGetPrefixEntry {
pub key: String,
pub value: String,
}
impl Consul {
pub async fn kv_get(&self, key: &str) -> Result<Option<Bytes>> {
debug!("kv_get {}", key);
let url = format!("{}/v1/kv/{}{}?raw", self.url, self.kv_prefix, key);
let http = self.client.get(&url).send().await?;
match http.status() {
StatusCode::OK => Ok(Some(http.bytes().await?)),
StatusCode::NOT_FOUND => Ok(None),
_ => Err(anyhow!(
"Consul request failed: {:?}",
http.error_for_status()
)),
}
}
pub async fn kv_get_json<T: for<'de> Deserialize<'de>>(&self, key: &str) -> Result<Option<T>> {
debug!("kv_get_json {}", key);
let url = format!("{}/v1/kv/{}{}?raw", self.url, self.kv_prefix, key);
let http = self.client.get(&url).send().await?;
match http.status() {
StatusCode::OK => Ok(Some(http.json().await?)),
StatusCode::NOT_FOUND => Ok(None),
_ => Err(anyhow!(
"Consul request failed: {:?}",
http.error_for_status()
)),
}
}
pub async fn kv_get_prefix(
&self,
key_prefix: &str,
last_index: Option<usize>,
) -> Result<WithIndex<HashMap<String, Bytes>>> {
debug!("kv_get_prefix {} index={:?}", key_prefix, last_index);
let results: WithIndex<Vec<KvGetPrefixEntry>> = self
.get_with_index(
format!(
"{}/v1/kv/{}{}?recurse",
self.url, self.kv_prefix, key_prefix
),
last_index,
)
.await?;
let mut res = HashMap::new();
for ent in results.value {
res.insert(ent.key, Bytes::from(base64::decode(&ent.value)?));
}
Ok(WithIndex {
value: res,
index: results.index,
})
}
pub async fn kv_put(&self, key: &str, bytes: Bytes) -> Result<()> {
debug!("kv_put {}", key);
let url = format!("{}/v1/kv/{}{}", self.url, self.kv_prefix, key);
let http = self.client.put(&url).body(bytes).send().await?;
http.error_for_status()?;
Ok(())
}
pub async fn kv_put_json<T: Serialize>(&self, key: &str, value: &T) -> Result<()> {
debug!("kv_put_json {}", key);
let url = format!("{}/v1/kv/{}{}", self.url, self.kv_prefix, key);
let http = self.client.put(&url).json(value).send().await?;
http.error_for_status()?;
Ok(())
}
pub async fn kv_delete(&self, key: &str) -> Result<()> {
let url = format!("{}/v1/kv/{}{}", self.url, self.kv_prefix, key);
let http = self.client.delete(&url).send().await?;
http.error_for_status()?;
Ok(())
}
}
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