forked from open-telemetry/opentelemetry-js
/
util.ts
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/
util.ts
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/*
* Copyright The OpenTelemetry Authors
*
* 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
*
* https://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 { diag } from '@opentelemetry/api';
import * as collectorTypes from '../../types';
/**
* Send metrics/spans using browser navigator.sendBeacon
* @param body
* @param onSuccess
* @param onError
*/
export function sendWithBeacon(
body: string,
url: string,
onSuccess: () => void,
onError: (error: collectorTypes.CollectorExporterError) => void
) {
if (navigator.sendBeacon(url, body)) {
diag.debug('sendBeacon - can send', body);
onSuccess();
} else {
const error = new collectorTypes.CollectorExporterError(
`sendBeacon - cannot send ${body}`
);
onError(error);
}
}
/**
* function to send metrics/spans using browser XMLHttpRequest
* used when navigator.sendBeacon is not available
* @param body
* @param onSuccess
* @param onError
*/
export function sendWithXhr(
body: string,
url: string,
headers: Record<string, string>,
onSuccess: () => void,
onError: (error: collectorTypes.CollectorExporterError) => void
) {
const xhr = new XMLHttpRequest();
xhr.open('POST', url);
const defaultHeaders = {
'Accept': 'application/json',
'Content-Type': 'application/json',
};
Object.entries({
...defaultHeaders,
...headers,
}).forEach(([k, v]) => {
xhr.setRequestHeader(k, v);
});
xhr.send(body);
xhr.onreadystatechange = () => {
if (xhr.readyState === XMLHttpRequest.DONE) {
if (xhr.status >= 200 && xhr.status <= 299) {
diag.debug('xhr success', body);
onSuccess();
} else {
const error = new collectorTypes.CollectorExporterError(
`Failed to export with XHR (status: ${xhr.status})`,
xhr.status
);
onError(error);
}
}
};
}