60 lines
1.2 KiB
Go
60 lines
1.2 KiB
Go
package database
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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/lib/pq"
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"go.uber.org/zap"
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)
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type PostgresProvider struct {
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db *sql.DB
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logger *zap.Logger
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}
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func NewPostgresProvider(dsn string, maxOpenConns, maxIdleConns int, connMaxLifetime string, logger *zap.Logger) (*sql.DB, error) {
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db, err := sql.Open("postgres", dsn)
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if err != nil {
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return nil, fmt.Errorf("failed to open database connection: %w", err)
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}
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// Configure connection pool
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db.SetMaxOpenConns(maxOpenConns)
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db.SetMaxIdleConns(maxIdleConns)
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if connMaxLifetime != "" {
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lifetime, err := time.ParseDuration(connMaxLifetime)
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if err != nil {
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return nil, fmt.Errorf("invalid connection max lifetime: %w", err)
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}
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db.SetConnMaxLifetime(lifetime)
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}
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// Test the connection
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if err := db.Ping(); err != nil {
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db.Close()
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return nil, fmt.Errorf("failed to ping database: %w", err)
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}
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return db, nil
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}
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func (p *PostgresProvider) Close() error {
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if p.db != nil {
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return p.db.Close()
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}
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return nil
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}
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func (p *PostgresProvider) Ping() error {
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if p.db != nil {
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return p.db.Ping()
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}
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return fmt.Errorf("database connection is nil")
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}
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func (p *PostgresProvider) GetDB() *sql.DB {
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return p.db
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} |