You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
2.1 KiB
85 lines
2.1 KiB
package main
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
|
|
"github.com/tencentyun/cos-go-sdk-v5"
|
|
"github.com/tencentyun/cos-go-sdk-v5/debug"
|
|
)
|
|
|
|
func log_status(err error) {
|
|
if err == nil {
|
|
return
|
|
}
|
|
if cos.IsNotFoundError(err) {
|
|
// WARN
|
|
fmt.Println("WARN: Resource is not existed")
|
|
} else if e, ok := cos.IsCOSError(err); ok {
|
|
fmt.Printf("ERROR: Code: %v\n", e.Code)
|
|
fmt.Printf("ERROR: Message: %v\n", e.Message)
|
|
fmt.Printf("ERROR: Resource: %v\n", e.Resource)
|
|
fmt.Printf("ERROR: RequestId: %v\n", e.RequestID)
|
|
// ERROR
|
|
} else {
|
|
fmt.Printf("ERROR: %v\n", err)
|
|
// ERROR
|
|
}
|
|
}
|
|
|
|
func main() {
|
|
u, _ := url.Parse("https://test-1253846586.cos.ap-guangzhou.myqcloud.com")
|
|
b := &cos.BaseURL{BucketURL: u}
|
|
c := cos.NewClient(b, &http.Client{
|
|
Transport: &cos.AuthorizationTransport{
|
|
SecretID: os.Getenv("COS_SECRETID"),
|
|
SecretKey: os.Getenv("COS_SECRETKEY"),
|
|
Transport: &debug.DebugRequestTransport{
|
|
RequestHeader: true,
|
|
RequestBody: true,
|
|
ResponseHeader: true,
|
|
ResponseBody: false,
|
|
},
|
|
},
|
|
})
|
|
|
|
// Case1 Download object into ReadCloser(). the body needs to be closed
|
|
name := "test/hello.txt"
|
|
resp, err := c.Object.Get(context.Background(), name, nil)
|
|
log_status(err)
|
|
|
|
bs, _ := ioutil.ReadAll(resp.Body)
|
|
resp.Body.Close()
|
|
fmt.Printf("%s\n", string(bs))
|
|
|
|
// Case2 Download object to local file. the body needs to be closed
|
|
fd, err := os.OpenFile("hello.txt", os.O_WRONLY|os.O_CREATE, 0660)
|
|
log_status(err)
|
|
|
|
defer fd.Close()
|
|
resp, err = c.Object.Get(context.Background(), name, nil)
|
|
log_status(err)
|
|
|
|
io.Copy(fd, resp.Body)
|
|
resp.Body.Close()
|
|
|
|
// Case3 Download object to local file path
|
|
_, err = c.Object.GetToFile(context.Background(), name, "hello_1.txt", nil)
|
|
log_status(err)
|
|
|
|
// Case4 Download object with range header, can used to concurrent download
|
|
opt := &cos.ObjectGetOptions{
|
|
ResponseContentType: "text/html",
|
|
Range: "bytes=0-3",
|
|
}
|
|
resp, err = c.Object.Get(context.Background(), name, opt)
|
|
log_status(err)
|
|
bs, _ = ioutil.ReadAll(resp.Body)
|
|
resp.Body.Close()
|
|
fmt.Printf("%s\n", string(bs))
|
|
}
|