minio/presigned_url.go

package minio

import (
	"context"
	"fmt"
	"net/url"
	"strings"
	"time"
)

func (c Client) GetPresignedURL(ctx context.Context, bucket, object, fileType string, expiry time.Duration) string {
	// default 15 min
	if expiry == 0 {
		expiry = 15 * time.Minute
	}

	// params
	reqParams := make(url.Values)
	reqParams.Set("response-content-disposition", fmt.Sprintf("attachment; filename=\"%s\"", object))

	// add content type for video
	if fileType == ListTypes.Video {
		parts := strings.Split(object, ".")
		reqParams.Set("response-content-type", fmt.Sprintf("video/%s", parts[len(parts)-1]))
	}

	// get
	presignedURL, err := c.client.PresignedGetObject(ctx, bucket, object, expiry, reqParams)
	if err != nil {
		fmt.Printf("[minio.GetPresignedURL][%s] get object '%s' error: %s \n", bucket, object, err.Error())
		fmt.Printf("params %v \n", reqParams)
		return ""
	}

	// return
	return presignedURL.String()
}