commit 3e2c85d7299fe331262e7e14644392aa8486c0bd Author: MRMARCABLE <127839985+MRMARCABLE@users.noreply.github.com> Date: Mon Sep 28 21:09:39 2026 +0700 updatingGolangDB(izin jadi ishowspeed) diff --git a/.env.example b/.env.example new file mode 100644 index 0000000..20383be --- /dev/null +++ b/.env.example @@ -0,0 +1,15 @@ +# Server Configuration +# -------------------- + +PORT=4000 +ENVIRONMENT=dev # Options: dev, stage, prod + +# PostgreSQL Database Configuration +# ---------------------------------- +DB_HOST=localhost +DB_PORT=5432 +DB_USER=postgres +DB_PASSWORD=your_secure_password +DB_NAME=snippetbox +DB_SSLMODE=disable + diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..e87dec3 --- /dev/null +++ b/.gitignore @@ -0,0 +1,24 @@ +# Environment variables +.env + +# Compiled binaries +*.exe +*.exe~ +*.dll +*.so +*.dylib +server + +# Test binary +*.test + +# Go build cache / output +/tmp +/bin + +# IDE / Editor +.vscode/ +.idea/ +*.swp +*.swo +*~ \ No newline at end of file diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..03487b7 --- /dev/null +++ b/go.mod @@ -0,0 +1,16 @@ +module 5803025050 + +go 1.27.0 + +require ( + github.com/jackc/pgx/v5 v5.11.0 + github.com/joho/godotenv v1.5.1 +) + +require ( + github.com/jackc/pgpassfile v1.0.0 // indirect + github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect + github.com/jackc/puddle/v2 v2.2.2 // indirect + golang.org/x/sync v0.17.0 // indirect + golang.org/x/text v0.29.0 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..404f873 --- /dev/null +++ b/go.sum @@ -0,0 +1,28 @@ +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM= +github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg= +github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo= +github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM= +github.com/jackc/pgx/v5 v5.11.0 h1:IzBBtyK9AHqf98cctWFifYSci2hgQR/cd56wB4p+ogg= +github.com/jackc/pgx/v5 v5.11.0/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4= +github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo= +github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4= +github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0= +github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4= +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= +github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U= +github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U= +golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug= +golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI= +golang.org/x/text v0.29.0 h1:1neNs90w9YzJ9BocxfsQNHKuAT4pkghyXc4nhZ6sJvk= +golang.org/x/text v0.29.0/go.mod h1:7MhJOA9CD2qZyOKYazxdYMF85OwPdEr9jTtBpO7ydH4= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/internal/config/config.go b/internal/config/config.go new file mode 100644 index 0000000..f859885 --- /dev/null +++ b/internal/config/config.go @@ -0,0 +1,70 @@ +package config + +import ( + "fmt" + "os" + + "github.com/joho/godotenv" +) + +// Config holds all configuration values for the application. +// Each field maps to an environment variable defined in .env. +type Config struct { + // Server settings + Port string // PORT — the port the HTTP server listens on + Environment string // ENVIRONMENT — dev, stage, or prod + + // Database settings + DBHost string // DB_HOST + DBPort string // DB_PORT + DBUser string // DB_USER + DBPassword string // DB_PASSWORD + DBName string // DB_NAME + DBSSLMode string // DB_SSLMODE +} + +// LoadConfig reads the .env file and returns a populated Config struct. +// It returns an error if the .env file is missing or a required variable is empty. +func LoadConfig() (*Config, error) { + // Load .env file into environment variables + err := godotenv.Load() + if err != nil { + return nil, fmt.Errorf("error loading .env file: %w", err) + } + + // Build the config from environment variables + cfg := &Config{ + Port: getEnv("PORT", "4000"), + Environment: getEnv("ENVIRONMENT", "dev"), + DBHost: getEnv("DB_HOST", ""), + DBPort: getEnv("DB_PORT", "5432"), + DBUser: getEnv("DB_USER", ""), + DBPassword: getEnv("DB_PASSWORD", ""), + DBName: getEnv("DB_NAME", ""), + DBSSLMode: getEnv("DB_SSLMODE", "disable"), + } + + // Validate that critical database fields are not empty + if cfg.DBHost == "" || cfg.DBUser == "" || cfg.DBPassword == "" || cfg.DBName == "" { + return nil, fmt.Errorf("missing required database configuration (DB_HOST, DB_USER, DB_PASSWORD, or DB_NAME)") + } + + return cfg, nil +} + +// DatabaseURL builds a PostgreSQL connection string from the config fields. +func (c *Config) DatabaseURL() string { + return fmt.Sprintf( + "postgres://%s:%s@%s:%s/%s?sslmode=%s", + c.DBUser, c.DBPassword, c.DBHost, c.DBPort, c.DBName, c.DBSSLMode, + ) +} + +// getEnv reads an environment variable or returns a default value. +func getEnv(key, defaultValue string) string { + value := os.Getenv(key) + if value == "" { + return defaultValue + } + return value +} \ No newline at end of file diff --git a/internal/database/database.go b/internal/database/database.go new file mode 100644 index 0000000..a48b25c --- /dev/null +++ b/internal/database/database.go @@ -0,0 +1,47 @@ +package database + +import ( + "context" + "fmt" + "log" + "time" + + "github.com/jackc/pgx/v5/pgxpool" + + "5803025050/internal/config" +) + +// ConnectDB establishes a connection pool to the PostgreSQL database +// using the configuration values from Config. +func ConnectDB(cfg *config.Config) (*pgxpool.Pool, error) { + dsn := cfg.DatabaseURL() + + ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second) + defer cancel() + + poolConfig, err := pgxpool.ParseConfig(dsn) + if err != nil { + return nil, fmt.Errorf("unable to parse database config: %w", err) + } + + pool, err := pgxpool.NewWithConfig(ctx, poolConfig) + if err != nil { + return nil, fmt.Errorf("unable to create connection pool: %w", err) + } + + if err := pool.Ping(ctx); err != nil { + pool.Close() + return nil, fmt.Errorf("unable to ping database: %w", err) + } + + log.Println("database connection established") + return pool, nil +} + +// CloseDB gracefully closes the database connection pool. +func CloseDB(pool *pgxpool.Pool) { + if pool != nil { + pool.Close() + log.Println("database connection closed") + } +}