Go

S3 Rename File

See more Amazon S3 (new) Examples

Demonstrates how to rename a file on Amazon S3.

Renaming an object (file) in AWS S3 using the AWS S3 API involves copying the object to a new location with the desired name and then deleting the original object.

Go

    success := false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    rest := chilkat.NewRest()

    // Connect to the Amazon AWS REST server in the desired region.
    bTls := true
    port := 443
    bAutoReconnect := true
    success = rest.Connect("s3-us-west-2.amazonaws.com",port,bTls,bAutoReconnect)

    // Provide AWS credentials.
    authAws := chilkat.NewAuthAws()
    authAws.SetAccessKey("AWS_ACCESS_KEY")
    authAws.SetSecretKey("AWS_SECRET_KEY")
    authAws.SetServiceName("s3")

    // This particular bucket is in the Oregon region, as opposed to the US Standard,
    // therefore the Region must be set appropriately.
    // Also note that we connected to "s3-us-west-2.amazonaws.com".
    authAws.SetRegion("us-west-2")

    rest.SetAuthAws(authAws)

    // Set the bucket name via the HOST header.
    // In this case, the bucket name is "chilkat.qa".
    // Note that the Host header should use "bucketName.s3.amazonaws.com", not "bucketName.s3-us-west-2.amazonaws.com"
    rest.SetHost("chilkat.qa.s3.amazonaws.com")

    // Copy /images/sea_creatures/starfish.jpg to /images/sea_creatures/starfish3.jpg
    // Notice here that the x-amz-copy-source includes the bucket in the source path,
    // but the target path passed to FullRequestNoBody does NOT contain the bucket (because the bucket
    // was already specified in the Host header).
    rest.AddHeader("x-amz-copy-source","/chilkat.qa/images/sea_creatures/starfish.jpg")

    sbResponse := chilkat.NewStringBuilder()
    success = rest.FullRequestNoBodySb("PUT","/images/sea_creatures/starfish3.jpg",sbResponse)
    if success == false {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        sbResponse.DisposeStringBuilder()
        return
    }

    // When successful, the S3 Storage service will respond with a 200 or 204 response code,
    // with an XML body.  
    if rest.ResponseStatusCode() != 200 {
        // Examine the request/response to see what happened.
        fmt.Println("response status code = ", rest.ResponseStatusCode())
        fmt.Println("response status text = ", rest.ResponseStatusText())
        fmt.Println("response header: ", rest.ResponseHeader())
        fmt.Println("response body: ", *sbResponse.GetAsString())
        fmt.Println("---")
        fmt.Println("LastRequestStartLine: ", rest.LastRequestStartLine())
        fmt.Println("LastRequestHeader: ", rest.LastRequestHeader())
    }

    fmt.Println(*sbResponse.GetAsString())
    fmt.Println("Copy Successful.")

    // --------------------------------------
    // Now we can delete the original file..
    // --------------------------------------

    // We no longer want to send the x-amz-copy-source header.  Remove it.
    rest.RemoveHeader("x-amz-copy-source")

    success = rest.FullRequestNoBodySb("DELETE","/images/sea_creatures/starfish.jpg",sbResponse)
    if success == false {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        sbResponse.DisposeStringBuilder()
        return
    }

    // If successfully deleted, the response status code is 204 and the response body text will be empty.
    statusCode := rest.ResponseStatusCode()
    fmt.Println("Response status code = ", statusCode)
    fmt.Println("Response text = ")
    fmt.Println(*sbResponse.GetAsString())

    rest.DisposeRest()
    authAws.DisposeAuthAws()
    sbResponse.DisposeStringBuilder()