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Top 5 Examples of "lightstep-tracer in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'lightstep-tracer' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

it("works with latest lightstep tracer", (done) => {
    const lsTracer = new LightStep.Tracer({
      access_token   : 'foo',
      component_name : 'bar',
    });
    const app = express();
    app.use(middleware({tracer: lsTracer}));

    var reqSpanPresent = false;
    app.get("/", (req, res) => {
      if (req.span) {
        reqSpanPresent = true;
      }
      res.send("Hello World!")
    });

    const server = app.listen(3000, (err) => {
      const opts = {
if (typeof program.data_root === 'undefined') {
  winston.error('no data_root given!');
  process.exit(1);
}

if (typeof program.access_token === 'undefined') {
  winston.error('no access_token given!');
  process.exit(1);
}

const databasePath = path.join(program.data_root, common.databaseName);
const imageRoot = path.join(program.data_root, '/images/');
const accessToken = program.access_token;

const tracer = new lightstep.Tracer(
    { access_token: accessToken, component_name: 'zoo' });
opentracing.initGlobalTracer(tracer);

const db = new sqlite3.Database(databasePath);
db.run('PRAGMA journal_mode = WAL');
db.configure('busyTimeout', 15000);

function onExit() {
  db.close();
  process.exit(0);
}
process.on('SIGINT', onExit);
process.on('SIGTERM', onExit);

const app = express();
app.use(tracingMiddleware.middleware({ tracer }));
import { install } from './yarn'

const globalLogger = new RedactingLogger(console)

process.on('uncaughtException', err => {
    globalLogger.error('Uncaught exception:', err)
    process.exit(1)
})

const CACHE_DIR = process.env.CACHE_DIR || fs.realpathSync(tmpdir())
globalLogger.log(`Using CACHE_DIR ${CACHE_DIR}`)

let tracer = new Tracer()
if (process.env.LIGHTSTEP_ACCESS_TOKEN) {
    globalLogger.log('LightStep tracing enabled')
    tracer = new LightstepTracer({
        access_token: process.env.LIGHTSTEP_ACCESS_TOKEN,
        component_name: 'lang-typescript',
    })
}

const port = process.env.PORT ? parseInt(process.env.PORT, 10) : 8080

let httpServer: http.Server | https.Server
if (process.env.TLS_CERT && process.env.TLS_KEY) {
    globalLogger.log('TLS encryption enabled')
    httpServer = https.createServer({
        cert: process.env.TLS_CERT,
        key: process.env.TLS_KEY,
    })
} else {
    httpServer = http.createServer()
}
): Tracer | undefined {
    if (useJaeger) {
        const config = {
            serviceName,
            sampler: {
                type: 'const',
                param: 1,
            },
        }

        return initTracerFromEnv(config, {})
    }

    if (lightstepAccessToken !== '') {
        return new lightstep.Tracer({
            access_token: lightstepAccessToken,
            component_name: serviceName,
        })
    }

    return undefined
}
agentHost: env.TRACE_AGENT_HOST,
        agentPort: env.TRACE_AGENT_PORT,
      },
      sampler: {
        type: 'const',
        param: 1,
      }
    };
    const options = { logger: agent.logger };

    const tracer = jaegerClient.initTracer(config, options);
    return tracer;
  }
  if (env.TRACE_AGENT_CLIENT === constants.TRACER_LIGHTSTEP) {
    const lightstepClient = require('lightstep-tracer');
    const tracer = new lightstepClient.Tracer({
      access_token: env.TRACE_AGENT_API_KEY,
      component_name: serviceName
    });
    return tracer;
  }
  return stubs.tracer;
};

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