package main

import (
	"encoding/json"
	"fmt"
	"testing"

	"github.com/shopspring/decimal"
)

func Test_A(t *testing.T) {
	input := 2.499
	dec := decimal.NewFromFloat(input)
	fmt.Println(dec.Round(0))
}

func Test_B(t *testing.T) {
	type A struct {
		ProjectId   int64  `json:"project_id"`
		Type        int    `json:"type"`
		OperationId string `json:"operation_id"`
		Count       int    `json:"count"`
		Timestamp   int64  `json:"timestamp"`
		ExtraData   string `json:"extra_data"`
	}

	a := A{
		ProjectId:   1,
		Count:       10,
		OperationId: "jfhkdfjhsdkjf",
	}
	aByte, err := jsonTest(a)
	if err != nil {
		t.Log(err)
	}
	var b A
	t.Log(string(aByte))
	err = json.Unmarshal(aByte, &b)
	if err != nil {
		t.Log(err)
	}
	t.Log(b.OperationId, "11111111")
}

func jsonTest(message interface{}) ([]byte, error) {
	messageByte, err := json.Marshal(message)
	if err != nil {
		return nil, err
	}
	return messageByte, nil
}

func jsonTest(message interface{}) ([]byte, error) {
	messageByte, err := json.Marshal(message)
	if err != nil {
		return nil, err
	}
	return messageByte, nil
}