73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
package postgresql
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import (
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"database/sql"
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"fmt"
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"time"
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_ "github.com/jackc/pgx/v4/stdlib"
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"github.com/volatiletech/sqlboiler/v4/boil"
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"go.elastic.co/apm/module/apmsql/v2"
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_ "go.elastic.co/apm/module/apmsql/v2/pgxv4"
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)
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type Config struct {
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Host string
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Port int
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User string
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Password string
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DBName string
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SSLMode string
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IsDebug bool
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MaxOpenConnections int
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MaxIdleConnections int
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ConnectionLifetime time.Duration
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UseElasticAPM bool
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}
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// Connect ...
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func Connect(cfg Config, server string) (db *sql.DB, err error) {
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uri := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=%s",
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cfg.Host, cfg.Port, cfg.User, cfg.Password, cfg.DBName, cfg.SSLMode)
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// connect
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if cfg.UseElasticAPM {
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db, err = apmsql.Open("pgx", uri)
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} else {
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db, err = sql.Open("pgx", uri)
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}
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if err != nil {
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panic(err)
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}
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// ping
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if err = db.Ping(); err != nil {
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fmt.Printf("[postgresql] pgx ping error: %s", err.Error())
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return nil, err
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}
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// config
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if cfg.MaxOpenConnections == 0 {
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cfg.MaxOpenConnections = 25
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}
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if cfg.MaxIdleConnections == 0 {
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cfg.MaxIdleConnections = 25
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}
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if cfg.ConnectionLifetime == 0 {
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cfg.ConnectionLifetime = 5 * time.Minute
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}
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db.SetMaxOpenConns(cfg.MaxOpenConnections)
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db.SetMaxIdleConns(cfg.MaxIdleConnections)
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db.SetConnMaxLifetime(cfg.ConnectionLifetime)
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// run migration
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runMigration(db, server)
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// debug mode
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boil.DebugMode = cfg.IsDebug
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fmt.Printf("⚡️[postgres]: connected to %s:%d, with APM: %t \n", cfg.Host, cfg.Port, cfg.UseElasticAPM)
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return db, nil
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}
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