opentracing middleware for express-js
npm install tracing-middlewareMiddleware for express to enable opentracing.
Supports any opentracing tracer compatible with version 0.11.0 of the opentracing javascript library.
npm install --save tracing-middleware
Usage
E.g., using LightStep as your tracer:
import * as express from "express";
import middleware from "tracing-middleware";
import * as LightStep from "lightstep-tracer";const lsTracer = LightStep.tracer({
access_token : 'foo',
component_name : 'bar',
});
const app = express();
app.use(middleware({tracer: lsTracer}));
Options
The function takes in an options object as its only argument.
`
const options = {
tracer: [Tracer], // Defaults to the opentracing no-op tracer.
}