@opentelemetry/exporter-zipkin
Version:
OpenTelemetry Zipkin Exporter allows the user to send collected traces to Zipkin.
82 lines • 2.98 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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.prepareSend = void 0;
const api_1 = require("@opentelemetry/api");
const core_1 = require("@opentelemetry/core");
const http = require("http");
const https = require("https");
/**
* Prepares send function that will send spans to the remote Zipkin service.
* @param urlStr - url to send spans
* @param headers - headers
* send
*/
function prepareSend(urlStr, headers) {
const url = new URL(urlStr);
const reqOpts = Object.assign({
method: 'POST',
headers: {
'Content-Type': 'application/json',
...headers,
},
});
/**
* Send spans to the remote Zipkin service.
*/
return function send(zipkinSpans, done) {
if (zipkinSpans.length === 0) {
api_1.diag.debug('Zipkin send with empty spans');
return done({ code: core_1.ExportResultCode.SUCCESS });
}
const { request } = url.protocol === 'http:' ? http : https;
const req = request(url, reqOpts, (res) => {
let rawData = '';
res.on('data', chunk => {
rawData += chunk;
});
res.on('end', () => {
const statusCode = res.statusCode || 0;
api_1.diag.debug(`Zipkin response status code: ${statusCode}, body: ${rawData}`);
// Consider 2xx and 3xx as success.
if (statusCode < 400) {
return done({ code: core_1.ExportResultCode.SUCCESS });
// Consider 4xx as failed non-retryable.
}
else {
return done({
code: core_1.ExportResultCode.FAILED,
error: new Error(`Got unexpected status code from zipkin: ${statusCode}`),
});
}
});
});
req.on('error', error => {
return done({
code: core_1.ExportResultCode.FAILED,
error,
});
});
// Issue request to remote service
const payload = JSON.stringify(zipkinSpans);
api_1.diag.debug(`Zipkin request payload: ${payload}`);
req.write(payload, 'utf8');
req.end();
};
}
exports.prepareSend = prepareSend;
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