56 lines
1.6 KiB
JavaScript
56 lines
1.6 KiB
JavaScript
import axios from '../../lib/utils/axios_utils';
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import statusCodes from '../../lib/utils/http_status';
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import { backOff } from '../../lib/utils/common_utils';
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const MAX_REQUESTS = 3;
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function backOffRequest(makeRequestCallback) {
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let requestCounter = 0;
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return backOff((next, stop) => {
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makeRequestCallback().then((resp) => {
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if (resp.status === statusCodes.NO_CONTENT) {
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requestCounter += 1;
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if (requestCounter < MAX_REQUESTS) {
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next();
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} else {
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stop(new Error('Failed to connect to the prometheus server'));
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}
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} else {
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stop(resp);
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}
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}).catch(stop);
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});
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}
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export default class MonitoringService {
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constructor({ metricsEndpoint, deploymentEndpoint }) {
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this.metricsEndpoint = metricsEndpoint;
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this.deploymentEndpoint = deploymentEndpoint;
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}
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getGraphsData() {
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return backOffRequest(() => axios.get(this.metricsEndpoint))
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.then(resp => resp.data)
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.then((response) => {
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if (!response || !response.data) {
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throw new Error('Unexpected metrics data response from prometheus endpoint');
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}
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return response.data;
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});
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}
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getDeploymentData() {
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if (!this.deploymentEndpoint) {
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return Promise.resolve([]);
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}
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return backOffRequest(() => axios.get(this.deploymentEndpoint))
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.then(resp => resp.data)
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.then((response) => {
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if (!response || !response.deployments) {
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throw new Error('Unexpected deployment data response from prometheus endpoint');
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}
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return response.deployments;
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});
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}
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}
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