go-fdk-ex-2

ex2.go

package main

import (
  "context"
  "encoding/json"
  "fmt"
  "io"
  
  fdk "github.com/fnproject/fdk-go"
)

func main() {
  fdk.Handle(fdk.HandlerFunc(myHandler))
}

func myHandler(ctx context.Context, in io.Reader, out io.Writer) {
  var person struct {
    Name string `json:"name"`
  }
  json.NewDecoder(in).Decode(&person)
  if person.Name == "" {
    person.Name = "world"
  }
  
  msg := struct {
    Msg string `json:"msg"`
  }{
    Msg: fmt.Sprintf("Hello %s!\n", person.Name),
  }
  json.NewEncoder(out).Encode(&msg)
}