package main

import (
    "fmt"
    "log"
    "time"

    "github.com/minio/minio-go"
    "github.com/kelseyhightower/envconfig"
)

type AWS struct {
  Endpoint          string
  Access_Key_Id     string
  Secret_Access_Key string
  SSL               bool
  Bucket            string
  Bucket_Key        string
  Bucket_Expiry     string
}

func main() {
    var aws AWS
    // Add configurations from environment variable
    // e.g:
    //    AWS_ENDPOINT         -> aws.Endpoint
    //    AWS_ACCESS_KEY_ID    -> aws.Access_Key_Id
    //    ...
    if err := envconfig.Process("aws", &aws); err != nil {
        log.Fatal(err.Error())
    }

    svc, err := minio.New(aws.Endpoint, aws.Access_Key_Id, aws.Secret_Access_Key, aws.SSL)
    if err != nil {
    }

    fmt.Println(aws)
    url, err := svc.PresignedPutObject(aws.Bucket, aws.Bucket_Key, aws.Bucket_Expiry)

    if err != nil {
        log.Fatalln(err)
    }

    fmt.Println("Successfully generated presigned URL", url)
}