DynamoDB使用AWS GoLang SDK列出所有备份

Question

Based on the example given in the link blow on API Operation Pagination without Callbacks https://aws.amazon.com/blogs/developer/context-pattern-added-to-the-aws-sdk-for-go/ I am trying to list all the Backups in dynamodb. But it seems like pagination is not working and it is just retrieving first page and not going to next page

package main

    import (
        "context"
        "fmt"

        "github.com/aws/aws-sdk-go/aws"
        "github.com/aws/aws-sdk-go/aws/request"

        "github.com/aws/aws-sdk-go/aws/session"
        "github.com/aws/aws-sdk-go/service/dynamodb"
    )

    func main() {

        sess, sessErr := session.NewSession()

        if sessErr != nil {
            fmt.Println(sessErr)
            fmt.Println("Cound not initilize session..returning..")
            return
        }
        // Create DynamoDB client
        dynamodbSvc := dynamodb.New(sess)

        params := dynamodb.ListBackupsInput{}
        ctx := context.Background()

        p := request.Pagination{
            NewRequest: func() (*request.Request, error) {
                req, _ := dynamodbSvc.ListBackupsRequest(&params)
                req.SetContext(ctx)
                return req, nil
            },
        }

        for p.Next() {
            page := p.Page().(*dynamodb.ListBackupsOutput)
            fmt.Println("Received", len(page.BackupSummaries), "objects in page")
            for _, obj := range page.BackupSummaries {
                fmt.Println(aws.StringValue(obj.BackupName))
            }
        }
        //return p.Err()
    } //end of main

Answer 1

It could be that you're smashing into the API a bit with your usage

You can call ListBackups a maximum of 5 times per second.

What is the value of p.HasNextPage() in your p.Next() loop?