@grafana/data#AnnotationQueryRequest TypeScript Examples

The following examples show how to use @grafana/data#AnnotationQueryRequest. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: datasource.test.ts From grafana-chinese with Apache License 2.0

6 votes

function makeAnnotationQueryRequest(): AnnotationQueryRequest<LokiQuery> {
  const timeRange = {
    from: dateTime(),
    to: dateTime(),
  };
  return {
    annotation: {
      expr: '{test=test}',
      refId: '',
      datasource: 'loki',
      enable: true,
      name: 'test-annotation',
    },
    dashboard: {
      id: 1,
    } as any,
    range: {
      ...timeRange,
      raw: timeRange,
    },
    rangeRaw: timeRange,
  };
}

Example #2

Source File: datasource.ts From grafana-chinese with Apache License 2.0

6 votes

async annotationQuery(options: AnnotationQueryRequest<LokiQuery>): Promise<AnnotationEvent[]> {
    if (!options.annotation.expr) {
      return [];
    }

    const interpolatedExpr = this.templateSrv.replace(options.annotation.expr, {}, this.interpolateQueryExpr);
    const query = { refId: `annotation-${options.annotation.name}`, expr: interpolatedExpr };
    const { data } = await this.runRangeQueryWithFallback(query, options).toPromise();
    const annotations: AnnotationEvent[] = [];

    for (const frame of data) {
      const tags: string[] = [];
      for (const field of frame.fields) {
        if (field.labels) {
          tags.push.apply(tags, Object.values(field.labels));
        }
      }
      const view = new DataFrameView<{ ts: string; line: string }>(frame);

      view.forEachRow(row => {
        annotations.push({
          time: new Date(row.ts).valueOf(),
          text: row.line,
          tags,
        });
      });
    }

    return annotations;
  }