src.app.core.services.prometheus.service.ts Maven / Gradle / Ivy
/**
* Copyright 2017-2023 Enedis
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { environment } from '@env/environment';
import { map, Observable } from 'rxjs';
import { Metric } from '@core/model/metric.model';
@Injectable({
providedIn: 'root'
})
export class PrometheusService {
private url = '/actuator';
constructor(private http: HttpClient) {
}
public getMetrics(): Observable {
return this.http.get(environment.backend + this.url + '/prometheus', { responseType: 'text' })
.pipe(map((res: string) => {
const metricRegex = new RegExp('(?[^{]*)(?{.*})? (?.*)');
return res.split('\n')
.filter(element => element && !element.startsWith('#'))
.map(element => {
const [, name, tags, value] = metricRegex.exec(element) || [];
return new Metric(name, tags, value);
});
}));
}
}