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serviceName: 'basic-service'
};
// Initialize an exporter depending on how we were started
let exporter;
const EXPORTER = process.env.EXPORTER || '';
if (EXPORTER.toLowerCase().startsWith('z')) {
exporter = new ZipkinExporter(options);
} else if (EXPORTER.toLowerCase().startsWith('j')) {
exporter = new JaegerExporter(options);
} else {
exporter = new CollectorExporter(options);
}
const tracer = new BasicTracer();
// Configure span processor to send spans to the provided exporter
tracer.addSpanProcessor(new SimpleSpanProcessor(exporter));
// Initialize the OpenTelemetry APIs to use the BasicTracer bindings
opentelemetry.initGlobalTracer(tracer);
// Create a span. A span must be closed.
const span = opentelemetry.getTracer().startSpan('main');
for (let i = 0; i < 10; i++) {
doWork(span);
}
// Be sure to end the span.
span.end();
// flush and close the connection.
const opentelemetry = require('@opentelemetry/core');
const { BasicTracer, BatchSpanProcessor, SimpleSpanProcessor } = require('@opentelemetry/tracing');
const { JaegerExporter } = require('@opentelemetry/exporter-jaeger');
const { ZipkinExporter } = require('@opentelemetry/exporter-zipkin');
const { CollectorExporter } = require('@opentelemetry/exporter-collector');
const tracer = new BasicTracer();
const zipkinExporter = new ZipkinExporter({serviceName: 'basic-service'});
const jaegerExporter = new JaegerExporter({
serviceName: 'basic-service',
});
const collectorExporter = new CollectorExporter({serviceName: 'basic-service'});
// It is recommended to use this BatchSpanProcessor for better performance
// and optimization, especially in production.
tracer.addSpanProcessor(new BatchSpanProcessor(zipkinExporter, {
bufferSize: 10 // This is added for example, default size is 100.
}));
// It is recommended to use SimpleSpanProcessor in case of Jaeger exporter as
// it's internal client already handles the spans with batching logic.
tracer.addSpanProcessor(new SimpleSpanProcessor(jaegerExporter));
const azureCoreTracingPatchFunction: PatchFunction = (coreTracing: typeof coreTracingTypes) => {
try {
const BasicTracer = require("@opentelemetry/tracing").BasicTracer;
const tracerConfig = channel.spanContextPropagator
? { scopeManager: channel.spanContextPropagator }
: undefined;
const tracer = new BasicTracer(tracerConfig) as coreTracingTypes.Tracer & { addSpanProcessor: Function };
// Patch startSpan instead of using spanProcessor.onStart because parentSpan must be
// set while the span is constructed
const startSpanOriginal = tracer.startSpan;
tracer.startSpan = function(name: string, options?: coreTracingTypes.SpanOptions) {
// if no parent span was provided, apply the current context
if (!options || !options.parent) {
const parentOperation = tracer.getCurrentSpan();
if (parentOperation && parentOperation.operation && parentOperation.operation.traceparent) {
options = {
...options,
parent: {
traceId: parentOperation.operation.traceparent.traceId,
spanId: parentOperation.operation.traceparent.spanId,
},
};
}