package
module
Version:
v0.0.0-...-5fe2e13
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Published: Aug 7, 2019
License: Apache-2.0
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Imports: 5
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Imported by: 8
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README
¶
echo
a middleware for the echov4 web framework to use opentracing
package main
import (
"github.com/labstack/echo/v4"
apmecho "github.com/opentracing-contrib/echo"
"github.com/opentracing-contrib/echo/examples/tracer"
"github.com/opentracing/opentracing-go"
"net/http"
"os"
)
const (
DefaultComponentName = "echo-demo"
)
func main() {
flag := os.Getenv("JAEGER_ENABLED")
if flag == "true" {
// 1. init tracer
tracer, closer := tracer.Init(DefaultComponentName)
if closer != nil {
defer closer.Close()
}
// 2. ste the global tracer
if tracer != nil {
opentracing.SetGlobalTracer(tracer)
}
}
e := echo.New()
if flag == "true" {
// 3. use the middleware
e.Use(apmecho.Middleware(DefaultComponentName))
}
e.GET("/", func(c echo.Context) error {
return c.String(http.StatusOK, "Hello, World!")
})
e.Logger.Fatal(e.Start(":1323"))
}
Example: echo-example
Documentation
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func Middleware(componentName string) echo.MiddlewareFunc
Source Files
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