@opentelemetry/otlp-exporter-base
Version:
OpenTelemetry OTLP Exporter base (for internal use only)
94 lines • 4.37 kB
JavaScript
/*
* 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 { baggageUtils } from '@opentelemetry/core';
import { diag } from '@opentelemetry/api';
import { getSharedConfigurationFromEnvironment } from './shared-env-configuration';
import { wrapStaticHeadersInFunction } from './shared-configuration';
function getStaticHeadersFromEnv(signalIdentifier) {
var _a, _b;
const signalSpecificRawHeaders = (_a = process.env[`OTEL_EXPORTER_OTLP_${signalIdentifier}_HEADERS`]) === null || _a === void 0 ? void 0 : _a.trim();
const nonSignalSpecificRawHeaders = (_b = process.env['OTEL_EXPORTER_OTLP_HEADERS']) === null || _b === void 0 ? void 0 : _b.trim();
const signalSpecificHeaders = baggageUtils.parseKeyPairsIntoRecord(signalSpecificRawHeaders);
const nonSignalSpecificHeaders = baggageUtils.parseKeyPairsIntoRecord(nonSignalSpecificRawHeaders);
if (Object.keys(signalSpecificHeaders).length === 0 &&
Object.keys(nonSignalSpecificHeaders).length === 0) {
return undefined;
}
// headers are combined instead of overwritten, with the specific headers taking precedence over
// the non-specific ones.
return Object.assign({}, baggageUtils.parseKeyPairsIntoRecord(nonSignalSpecificRawHeaders), baggageUtils.parseKeyPairsIntoRecord(signalSpecificRawHeaders));
}
function appendRootPathToUrlIfNeeded(url) {
try {
const parsedUrl = new URL(url);
// This will automatically append '/' if there's no root path.
return parsedUrl.toString();
}
catch (_a) {
diag.warn(`Configuration: Could not parse environment-provided export URL: '${url}', falling back to undefined`);
return undefined;
}
}
function appendResourcePathToUrl(url, path) {
try {
// just try to parse, if it fails we catch and warn.
new URL(url);
}
catch (_a) {
diag.warn(`Configuration: Could not parse environment-provided export URL: '${url}', falling back to undefined`);
return undefined;
}
if (!url.endsWith('/')) {
url = url + '/';
}
url += path;
try {
// just try to parse, if it fails we catch and warn.
new URL(url);
}
catch (_b) {
diag.warn(`Configuration: Provided URL appended with '${path}' is not a valid URL, using 'undefined' instead of '${url}'`);
return undefined;
}
return url;
}
function getNonSpecificUrlFromEnv(signalResourcePath) {
var _a;
const envUrl = (_a = process.env.OTEL_EXPORTER_OTLP_ENDPOINT) === null || _a === void 0 ? void 0 : _a.trim();
if (envUrl == null || envUrl === '') {
return undefined;
}
return appendResourcePathToUrl(envUrl, signalResourcePath);
}
function getSpecificUrlFromEnv(signalIdentifier) {
var _a;
const envUrl = (_a = process.env[`OTEL_EXPORTER_OTLP_${signalIdentifier}_ENDPOINT`]) === null || _a === void 0 ? void 0 : _a.trim();
if (envUrl == null || envUrl === '') {
return undefined;
}
return appendRootPathToUrlIfNeeded(envUrl);
}
/**
* Reads and returns configuration from the environment
*
* @param signalIdentifier all caps part in environment variables that identifies the signal (e.g.: METRICS, TRACES, LOGS)
* @param signalResourcePath signal resource path to append if necessary (e.g.: v1/metrics, v1/traces, v1/logs)
*/
export function getHttpConfigurationFromEnvironment(signalIdentifier, signalResourcePath) {
var _a;
return Object.assign(Object.assign({}, getSharedConfigurationFromEnvironment(signalIdentifier)), { url: (_a = getSpecificUrlFromEnv(signalIdentifier)) !== null && _a !== void 0 ? _a : getNonSpecificUrlFromEnv(signalResourcePath), headers: wrapStaticHeadersInFunction(getStaticHeadersFromEnv(signalIdentifier)) });
}
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