@logzio-node-toolbox/tracer

TRACER

create a tracer by passing configuration with build-in defaults.
params:
serviceName - string (node-js)
tags - object | key value of tags to add to each span
carrierType - string (http-header) | opentracing carrier types
debug - boolean (false) | print spans on finish, and set sampler to 1 const 1
shouldIgnore - function | ignore spans by the operation name
onStartSpan - function | will call function with created span
onFinishSpan - function | will call function before closing the span
exporterOptions - object | configure the exporter
type - string (const) | jaeger exporter types
probability - number (1) | jaeger exporter probability
host - string (localhost) | jaeger exporter host
port - number (6832) | jaeger exporter port
interval - number (2000) | jaeger exporter flush interval

``javascript
import { Tracer } from '@logzio-node-toolbox/tracer;

const config = {
serviceName: 'client-api',
exporterOptions: {
host: '127.0.13.1',
interval: 5000,
},
tags: {
region: 'us',

},
shouldIgnore: (url) => {
if url.includes('ignore path') return true;
return false;
},
onStartSpan: (span) => {
span.addTag()
}
}
const tracer = new Tracer(config);

const span = tracer.startSpan({operation: 'operationName', tags: { default: 'tags for this span' }, carrier: req.headers });

tracer.finishSpan({ span: span, tags: { default: 'tags for finish span' }});
``