tiny-url-ex/controller/token/main.go

package main

import (
	"crypto/sha512"
	"encoding/hex"
	"git.xdrm.io/example/aicra/db"
	e "git.xdrm.io/go/aicra/err"
	i "git.xdrm.io/go/aicra/response"
	"strconv"
	"time"
)

// Builds an access token from credentials
func Post(d i.Arguments, r *i.Response) i.Response {

	/* (1) Init redis connection */
	cli := db.Connect()
	if cli == nil {
		r.Err = e.Failure
		return *r
	}

	/* (2) Extract api input */
	role, ok := d["role"].(string)
	if !ok {
		r.Err = e.InvalidParam
		r.Err.BindArgument("url")
		return *r
	}

	/* (3) Generate token */
	hasher := sha512.New()
	defer hasher.Reset()
	hasher.Write([]byte(strconv.FormatInt(time.Now().Unix(), 5)))
	token := hex.EncodeToString(hasher.Sum(nil))

	/* (4) Store */
	if !cli.Set(db.TOKEN, token, role, time.Minute) {
		r.Err = e.Failure
		return *r
	}

	r.Set("token", token)
	r.Err = e.Success
	return *r
}