Update a DynamoDB global secondary index provisioned throughput using AWS SDK for Go

main.go

package main

import (
	"log"

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

const (
	TableName          = "MyTable"
	TableIndexName     = "MyIndex"
	ReadCapacityUnits  = 1
	WriteCapacityUnits = 2
)

func main() {
	sess, _ := session.NewSession()
	svc := dynamodb.New(sess)

	result, err := svc.UpdateTable(&dynamodb.UpdateTableInput{
		TableName: aws.String(TableName),
		GlobalSecondaryIndexUpdates: []*dynamodb.GlobalSecondaryIndexUpdate{
			{
				Update: &dynamodb.UpdateGlobalSecondaryIndexAction{
					IndexName: aws.String(TableIndexName),
					ProvisionedThroughput: &dynamodb.ProvisionedThroughput{
						ReadCapacityUnits:  aws.Int64(ReadCapacityUnits),
						WriteCapacityUnits: aws.Int64(WriteCapacityUnits),
					},
				},
			},
		},
	})

	if err != nil {
		log.Panic(err)
	}

	log.Print(result)
}