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func (s *BucketService) CreateSession(ctx context.Context) (*CreateSessionResult, *Response, error)

type CreateSessionResult struct {
    Credentials SessionCredential
}

type SessionCredential struct {
    SecretID     string
    SecretKey    string
    SessionToken string
    Expiration   time.Time
}

package main

import (
    "context"
    "fmt"
    "log"
    "net/http"
    "net/url"
    "os"
    "time"

    "github.com/tencentyun/cos-go-sdk-v5"
)

func main() {
    u, _ := url.Parse("https://examplebucket-x--1250000000.cosrapid.ap-guangzhou.myqcloud.com")
    b := &cos.BaseURL{BucketURL: u}
    base := &cos.AuthorizationTransport{
        SecretID:  os.Getenv("SECRETID"),
        SecretKey: os.Getenv("SECRETKEY"),
    }
    c := cos.NewClient(b, &http.Client{
        Transport: cos.NewRapidCredentialTransport(base),
        Timeout:   30 * time.Second,
    })

    ctx := context.Background()
    res, _, err := c.Bucket.CreateSession(ctx)
    if err != nil {
        log.Fatalf("CreateSession failed: %v", err)
    }

    cred := res.Credentials
    fmt.Printf("AccessKeyId: %s\\n", cred.SecretID)
    fmt.Printf("SessionToken: %s\\n", cred.SessionToken)
    fmt.Printf("Expiration: %s\\n", cred.Expiration.Format(time.RFC3339))
}