Tracing

tools

1. OpenCensus exporter
2. OpenCensus collector
3. Jaeger backend

Steps to add tracing

1. Initialise a exporter to export traces

import "github.com/inclusi-blog/gola-utils/http/request"

tracing.Init("service-name", "collector-address")

2. Instrument server

app := tracing.WithTracing(router, "api-healthz-endpoint") // to avoid tracing health endpoint
gohttp.ListenAndServe(":8080", app)

3. Instrument client for inter service calls

import "go.opencensus.io/plugin/ochttp"
httpClient := &http.Client{Transport: &ochttp.Transport{}}