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query-with-cancel.go
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/
query-with-cancel.go
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package main
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/timestreamquery"
"go_sample/utils"
"flag"
"fmt"
"os"
)
func main() {
// process command line arguments
region := flag.String("region", "us-east-1", "region")
queryPtr := flag.String("query", "", "query string")
filePtr := flag.String("outputfile", "", "output results file in the current folder")
flag.Parse()
// setup the query client
sess, err := session.NewSession(&aws.Config{Region: aws.String(*region)})
querySvc := timestreamquery.New(sess)
var f *os.File
if *filePtr != "" {
var ferr error
f, ferr = os.Create(*filePtr)
utils.Check(ferr)
defer f.Close()
}
queryInput := ×treamquery.QueryInput{
QueryString: aws.String(*queryPtr),
}
fmt.Println("Submitting a query:")
fmt.Println(queryInput)
// submit the query
queryOutput, err := querySvc.Query(queryInput)
if err != nil {
fmt.Println("Error:")
fmt.Println(err)
}
cancelQueryInput := ×treamquery.CancelQueryInput{
QueryId: aws.String(*queryOutput.QueryId),
}
fmt.Println("Submitting cancellation for the query")
fmt.Println(cancelQueryInput)
// submit the query
cancelQueryOutput, err := querySvc.CancelQuery(cancelQueryInput)
if err != nil {
fmt.Println("Error:")
fmt.Println(err)
} else {
fmt.Println("Query has been cancelled successfully")
fmt.Println(cancelQueryOutput)
}
}