/
object_meta.go
executable file
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/
object_meta.go
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package sample
import (
"fmt"
"strings"
"github.com/aliyun/aliyun-oss-go-sdk/oss"
)
// ObjectMetaSample shows how to get and set the object metadata
func ObjectMetaSample() {
// Create bucket
bucket, err := GetTestBucket(bucketName)
if err != nil {
HandleError(err)
}
// Delete object
err = bucket.PutObject(objectKey, strings.NewReader("YoursObjectValue"))
if err != nil {
HandleError(err)
}
// Case 0: Set bucket meta. one or more properties could be set
// Note: Meta is case insensitive
options := []oss.Option{
oss.Expires(futureDate),
oss.Meta("myprop", "mypropval")}
err = bucket.SetObjectMeta(objectKey, options...)
if err != nil {
HandleError(err)
}
// Case 1: Get the object metadata. Only return basic meta information includes ETag, size and last modified.
props, err := bucket.GetObjectMeta(objectKey)
if err != nil {
HandleError(err)
}
fmt.Println("Object Meta:", props)
// Case 2: Get all the detailed object meta including custom meta
props, err = bucket.GetObjectDetailedMeta(objectKey)
if err != nil {
HandleError(err)
}
fmt.Println("Expires:", props.Get("Expires"))
// Case 3: Get the object's all metadata with contraints. When constraints are met, return the metadata.
props, err = bucket.GetObjectDetailedMeta(objectKey, oss.IfUnmodifiedSince(futureDate))
if err != nil {
HandleError(err)
}
fmt.Println("MyProp:", props.Get("X-Oss-Meta-Myprop"))
_, err = bucket.GetObjectDetailedMeta(objectKey, oss.IfModifiedSince(futureDate))
if err == nil {
HandleError(err)
}
goar, err := bucket.GetObjectACL(objectKey)
if err != nil {
HandleError(err)
}
fmt.Println("Object ACL:", goar.ACL)
// Delete object and bucket
err = DeleteTestBucketAndObject(bucketName)
if err != nil {
HandleError(err)
}
fmt.Println("ObjectMetaSample completed")
}