tracer = new Tracer({ctxImpl, recorder}); app.use(expressMiddleware({tracer}));
tracer = new Tracer({ctxImpl, recorder}); app.use(expressMiddleware({tracer}));
tracer = new Tracer({ctxImpl, recorder}); app.use(expressMiddleware({tracer}));
tracer = new Tracer({ctxImpl, recorder}); app.use(expressMiddleware({tracer}));