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3 years ago
use async_trait::async_trait;
use crate::{
metric::{Metric, MetricResult},
types,
};
use serde_derive::{Deserialize, Serialize};
use super::GrafanaService;
pub struct Prometheus<'a> {
query: String,
step: u32,
grafana_service: &'a GrafanaService,
}
#[derive(Deserialize, Serialize)]
struct Query {
query: String,
step: u32,
start: u64,
end: u64,
}
impl<'a> Prometheus<'a> {
pub fn new(grafana_service: &'a GrafanaService, query: &str, step: u32) -> Prometheus<'a> {
Prometheus {
grafana_service,
query: query.to_string(),
step,
}
}
}
#[async_trait]
impl Metric for Prometheus<'_> {
async fn query(&self, from: u64, to: u64) -> types::Result<MetricResult> {
let q = Query {
query: self.query.to_owned(),
step: self.step,
start: from,
end: to,
};
let url = "/api/datasources/proxy/1/api/v1/query_range";
// TODO: use serialisatoin from serde
let rq = "query=rate%28go_memstats_alloc_bytes_total%5B5m%5D%29&start=1634672070&end=1634672970&step=15";
let (status_code, value) = self.grafana_service.post_form(&url, &rq).await?;
// TODO: return error
// if status_code != StatusCode::OK {
// return std::error::("Bad status code");
// }
println!("{:?}", value);
return Ok(Vec::new());
}
}