76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
package config
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import (
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"database/sql"
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"fmt"
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"log"
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"time"
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_ "github.com/lib/pq"
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)
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func ConnectToPostgreSQL() (*sql.DB, error) {
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fmt.Println("Connecting to PostgreSQL...")
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config, err := LoadConfig("config/conf.json")
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if err != nil {
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return nil, err
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}
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fmt.Println("Configuration loaded successfully!")
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connStr := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=%s",
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config.Database.Host, config.Database.Port, config.Database.User, config.Database.Password, config.Database.DBName, config.Database.SSLMode)
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// Open connection to database
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db, err := sql.Open("postgres", connStr)
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if err != nil {
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return nil, err
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}
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fmt.Println("Connection to PostgreSQL opened successfully :D")
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// Set the maximum number of open connections to 20
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db.SetMaxOpenConns(20)
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// Set the maximum number of idle connections to 10
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db.SetMaxIdleConns(10)
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// Set the maximum connection lifetime to 1 hour
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db.SetConnMaxLifetime(1 * time.Hour)
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// Ping database to verify connection
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err = db.Ping()
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fmt.Println(err)
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if err != nil {
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return nil, err
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}
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log.Println("Connected to PostgreSQL!")
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return db, nil
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}
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func DisconnectFromPostgreSQL(db *sql.DB) error {
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fmt.Println("Disconnecting from PostgreSQL...")
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if err := db.Close(); err != nil {
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return err
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}
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log.Println("Disconnected from PostgreSQL!")
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return nil
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}
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func PrintDBConfig() {
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config, err := LoadConfig("config/conf.json")
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if err != nil {
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fmt.Println("Error loading config:", err)
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return
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}
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fmt.Println("Configuration:", config)
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fmt.Println("Host:", config.Database.Host)
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fmt.Println("Port:", config.Database.Port)
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fmt.Println("Database User:", config.Database.User)
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fmt.Println("Database Password:", config.Database.Password)
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}
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