tgvpn
66 lines
1.2 KiB
Go
66 lines
1.2 KiB
Go
package db
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import (
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"context"
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"embed"
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"fmt"
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"time"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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//go:embed migrations/*.sql
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var migrationsFS embed.FS
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type DB struct {
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pool *pgxpool.Pool
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}
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func Connect(ctx context.Context, databaseURL string) (*DB, error) {
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cfg, err := pgxpool.ParseConfig(databaseURL)
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if err != nil {
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return nil, fmt.Errorf("parse database url: %w", err)
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}
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cfg.MaxConns = 10
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cfg.MinConns = 1
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pool, err := pgxpool.NewWithConfig(ctx, cfg)
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if err != nil {
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return nil, fmt.Errorf("connect postgres: %w", err)
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}
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ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
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defer cancel()
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if err := pool.Ping(ctx); err != nil {
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pool.Close()
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return nil, fmt.Errorf("ping postgres: %w", err)
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}
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d := &DB{pool: pool}
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if err := d.migrate(ctx); err != nil {
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pool.Close()
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return nil, err
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}
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return d, nil
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}
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func (d *DB) Close() {
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d.pool.Close()
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}
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func (d *DB) migrate(ctx context.Context) error {
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data, err := migrationsFS.ReadFile("migrations/001_init.sql")
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if err != nil {
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return fmt.Errorf("read migration: %w", err)
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}
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_, err = d.pool.Exec(ctx, string(data))
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if err != nil {
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return fmt.Errorf("apply migration: %w", err)
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}
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return nil
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}
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func (d *DB) Pool() *pgxpool.Pool {
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return d.pool
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}
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