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cloudsql.go 1.8KB

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  1. // Copyright 2013 Google Inc. All rights reserved.
  2. // Use of this source code is governed by the Apache 2.0
  3. // license that can be found in the LICENSE file.
  4. /*
  5. Package cloudsql exposes access to Google Cloud SQL databases.
  6. This package does not work in App Engine "flexible environment".
  7. This package is intended for MySQL drivers to make App Engine-specific
  8. connections. Applications should use this package through database/sql:
  9. Select a pure Go MySQL driver that supports this package, and use sql.Open
  10. with protocol "cloudsql" and an address of the Cloud SQL instance.
  11. A Go MySQL driver that has been tested to work well with Cloud SQL
  12. is the go-sql-driver:
  13. import "database/sql"
  14. import _ "github.com/go-sql-driver/mysql"
  15. db, err := sql.Open("mysql", "user@cloudsql(project-id:instance-name)/dbname")
  16. Another driver that works well with Cloud SQL is the mymysql driver:
  17. import "database/sql"
  18. import _ "github.com/ziutek/mymysql/godrv"
  19. db, err := sql.Open("mymysql", "cloudsql:instance-name*dbname/user/password")
  20. Using either of these drivers, you can perform a standard SQL query.
  21. This example assumes there is a table named 'users' with
  22. columns 'first_name' and 'last_name':
  23. rows, err := db.Query("SELECT first_name, last_name FROM users")
  24. if err != nil {
  25. log.Errorf(ctx, "db.Query: %v", err)
  26. }
  27. defer rows.Close()
  28. for rows.Next() {
  29. var firstName string
  30. var lastName string
  31. if err := rows.Scan(&firstName, &lastName); err != nil {
  32. log.Errorf(ctx, "rows.Scan: %v", err)
  33. continue
  34. }
  35. log.Infof(ctx, "First: %v - Last: %v", firstName, lastName)
  36. }
  37. if err := rows.Err(); err != nil {
  38. log.Errorf(ctx, "Row error: %v", err)
  39. }
  40. */
  41. package cloudsql
  42. import (
  43. "net"
  44. )
  45. // Dial connects to the named Cloud SQL instance.
  46. func Dial(instance string) (net.Conn, error) {
  47. return connect(instance)
  48. }