Body always empty string

[refaldyrk]

fmt.Println(kong.ServiceResponse.GetRawBody())

I try to call this function but return empty string

how fix this please?

[anthonykzip]

Were you able to fix this? I'm also seeing the same thing. I also can't seem to print out Service Response headers that I set from the app either.

ex:
In the app handler
w.Header().Set("header", "value")

In Response() of plugin
headers, _ := kong.ServiceResponse.GetHeaders(1000)

headers is empty for some reason.

[gszr]

Hi @refaldyrk and @anthonykzip,

First of all, thank you for taking the time to report this issue - and our apologies for the delayed response on our end.

Let's dive into this.

• kong.ServiceResponse.GetRawBody() returns empty string

This requires buffered proxying mode to be on, which in Golang means using the Response phase. Can you elaborate on which phase you used? See the following example:

package main

import (
	"github.com/Kong/go-pdk"
	"github.com/Kong/go-pdk/server"
	"log"
)

func main() {
	server.StartServer(New, Version, Priority)
}

var Version = "0.2"
var Priority = 1

type Config struct {
	Message string
}

func New() interface{} {
	return &Config{}
}


func (conf *Config) Response(kong *pdk.PDK) {
	body, err := kong.ServiceResponse.GetRawBody()
	kong.Log.Err(string(body))
	log.Println(err)
}

This will give you the body.

Alternatively, if you want to use a subsequent phase, you can have an empty Response handler to ensure buffered proxying is enabled.

• kong.ServiceResponse.GetHeaders(1000) returns no headers

This is a known limitation of the Lua PDK and one we are working on improving; check out Kong/kong#13827 for details. Let's please discuss this particular issue in #222.