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Begin metrics refactor

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This commit is contained in:
Paul Hauner
2019-08-11 12:12:19 +10:00
parent 4020d13064
commit 48733917be
7 changed files with 46 additions and 1 deletions
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2
beacon_node/rest_api/src/lib.rs
View File

@@ -3,6 +3,7 @@ extern crate hyper;
mod beacon;
mod config;
mod helpers;
mod metrics;
mod node;
mod url_query;
@@ -103,6 +104,7 @@ pub fn start_server<T: BeaconChainTypes + Clone + 'static>(
let result = match (req.method(), path.as_ref()) {
(&Method::GET, "/beacon/state") => beacon::get_state::<T>(req),
(&Method::GET, "/beacon/state_root") => beacon::get_state_root::<T>(req),
(&Method::GET, "/metrics") => metrics::get_prometheus(req),
(&Method::GET, "/node/version") => node::get_version(req),
(&Method::GET, "/node/genesis_time") => node::get_genesis_time::<T>(req),
_ => Err(ApiError::MethodNotAllowed(path.clone())),

17
beacon_node/rest_api/src/metrics.rs Normal file
View File

@@ -0,0 +1,17 @@
use crate::{success_response, ApiError, ApiResult};
use hyper::{Body, Request};
use prometheus::{Encoder, TextEncoder};
/// Returns the full set of Prometheus metrics for the Beacon Node application.
pub fn get_prometheus(_req: Request<Body>) -> ApiResult {
let mut buffer = vec![];
let encoder = TextEncoder::new();
encoder
.encode(&beacon_chain::gather_metrics(), &mut buffer)
.unwrap();
String::from_utf8(buffer)
.map(|string| success_response(Body::from(string)))
.map_err(|e| ApiError::ServerError(format!("Failed to encode prometheus info: {:?}", e)))
}