/
main.go
49 lines (38 loc) · 941 Bytes
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
package main
import (
"context"
"database/sql"
"fmt"
"log"
"os"
"github.com/lib/pq"
"github.com/networkteam/go-sqllogger"
)
func main() {
logger := log.New(os.Stderr, "SQL: ", 0)
sqlLogger := sqllogger.NewDefaultSQLLogger(logger)
sqlLogger.LogClose = true
pqConnector, err := pq.NewConnector("dbname=test sslmode=disable")
if err != nil {
failf("could not connect to database: %v", err)
}
connector := sqllogger.LoggingConnector(sqlLogger, pqConnector)
db := sql.OpenDB(connector)
ctx := context.Background()
rows, err := db.QueryContext(ctx, "SELECT 42")
if err != nil {
failf("could not query database: %v", err)
}
defer rows.Close()
if rows.Next() {
var answer int
if err := rows.Scan(&answer); err != nil {
failf("could not scan row: %v", err)
}
fmt.Printf("The answer is: %d\n", answer)
}
}
func failf(format string, args ...interface{}) {
fmt.Printf(format+"\n", args...)
os.Exit(1)
}