mirrors/prometheus
1
0
Fork 0
mirror of https://github.com/prometheus/prometheus.git synced 2025-09-21 05:41:01 +02:00
Code Issues Projects Releases Wiki Activity

Codemirror - TS Prometheus Client: don't use lookback interval if not set

Browse Source 
Signed-off-by: Augustin Husson <husson.augustin@gmail.com>
This commit is contained in:
Augustin Husson 2025-09-15 16:39:59 +02:00
parent 594f9d63a5
commit cf08d2def7
1 changed files with 27 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
web/ui/module/codemirror-promql/src/client/prometheus.ts
View File

@ -36,6 +36,7 @@ export interface PrometheusClient {
// Note that the returned list can be a superset of those suggestions for the prefix (i.e., including ones without the
// prefix), as codemirror will filter these out when displaying suggestions to the user.
metricNames(prefix?: string): Promise<string[]>;
// flags returns flag values that prometheus was configured with.
flags(): Promise<Record<string, string>>;
}
@ -77,7 +78,7 @@ const serviceUnavailable = 503;
// HTTPPrometheusClient is the HTTP client that should be used to get some information from the different endpoint provided by prometheus.
export class HTTPPrometheusClient implements PrometheusClient {
private readonly lookbackInterval = 60 * 60 * 1000 * 12; //12 hours
private readonly lookbackInterval: undefined | number; //12 hours
private readonly url: string;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
private readonly errorHandler?: (error: any) => void;
@ -91,9 +92,7 @@ export class HTTPPrometheusClient implements PrometheusClient {
constructor(config: PrometheusConfig) {
this.url = config.url ? config.url : '';
this.errorHandler = config.httpErrorHandler;
if (config.lookbackInterval) {
this.lookbackInterval = config.lookbackInterval;
}
if (config.fetchFn) {
this.fetchFn = config.fetchFn;
}
@ -109,16 +108,15 @@ export class HTTPPrometheusClient implements PrometheusClient {
}
labelNames(metricName?: string): Promise<string[]> {
if (metricName === undefined || metricName === '') {
const params: URLSearchParams = new URLSearchParams();
if (this.lookbackInterval) {
const end = new Date();
const start = new Date(end.getTime() - this.lookbackInterval);
if (metricName === undefined || metricName === '') {
const request = this.buildRequest(
this.labelsEndpoint(),
new URLSearchParams({
start: start.toISOString(),
end: end.toISOString(),
})
);
params.set('start', start.toISOString());
params.set('end', end.toISOString());
}
const request = this.buildRequest(this.labelsEndpoint(), params);
// See https://prometheus.io/docs/prometheus/latest/querying/api/#getting-label-names
return this.fetchAPI<string[]>(request.uri, {
method: this.httpMethod,
@ -148,14 +146,14 @@ export class HTTPPrometheusClient implements PrometheusClient {
// labelValues return a list of the value associated to the given labelName.
// In case a metric is provided, then the list of values is then associated to the couple <MetricName, LabelName>
labelValues(labelName: string, metricName?: string, matchers?: Matcher[]): Promise<string[]> {
if (!metricName || metricName.length === 0) {
const params: URLSearchParams = new URLSearchParams();
if (this.lookbackInterval) {
const end = new Date();
const start = new Date(end.getTime() - this.lookbackInterval);
if (!metricName || metricName.length === 0) {
const params: URLSearchParams = new URLSearchParams({
start: start.toISOString(),
end: end.toISOString(),
});
params.set('start', start.toISOString());
params.set('end', end.toISOString());
}
// See https://prometheus.io/docs/prometheus/latest/querying/api/#querying-label-values
return this.fetchAPI<string[]>(`${this.labelValuesEndpoint().replace(/:name/gi, labelName)}?${params}`).catch((error) => {
if (this.errorHandler) {
@ -191,16 +189,15 @@ export class HTTPPrometheusClient implements PrometheusClient {
}
series(metricName: string, matchers?: Matcher[], labelName?: string): Promise<Map<string, string>[]> {
const params: URLSearchParams = new URLSearchParams();
if (this.lookbackInterval) {
const end = new Date();
const start = new Date(end.getTime() - this.lookbackInterval);
const request = this.buildRequest(
this.seriesEndpoint(),
new URLSearchParams({
start: start.toISOString(),
end: end.toISOString(),
'match[]': labelMatchersToString(metricName, matchers, labelName),
})
);
params.set('start', start.toISOString());
params.set('end', end.toISOString());
}
params.set('match[]', labelMatchersToString(metricName, matchers, labelName));
const request = this.buildRequest(this.seriesEndpoint(), params);
// See https://prometheus.io/docs/prometheus/latest/querying/api/#finding-series-by-label-matchers
return this.fetchAPI<Map<string, string>[]>(request.uri, {
method: this.httpMethod,