1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
package config
import (
"fmt"
"os"
"github.com/joho/godotenv"
)
// Config holds application configuration
type Config struct {
// Database configuration
DatabaseDSN string
// JWT configuration
JWTSecret string
JWTExpiry int // in hours
// Server configuration
ServerPort int
ServerHost string
// Environment (development, staging, production)
Environment string
}
// LoadConfig loads the application configuration from environment variables
func LoadConfig() (*Config, error) {
// Load .env file if it exists
_ = godotenv.Load() // Ignore error if .env file doesn't exist
// Set defaults and override with environment variables
config := &Config{
DatabaseDSN: getEnv("DATABASE_DSN", "postgresql://postgres:postgres@localhost:5432/finance?sslmode=disable"),
JWTSecret: getEnv("JWT_SECRET", "supersecretkey"), // This should be changed in production
JWTExpiry: getEnvInt("JWT_EXPIRY", 24), // Default to 24 hours
ServerPort: getEnvInt("SERVER_PORT", 8080), // Default to 8080
ServerHost: getEnv("SERVER_HOST", "0.0.0.0"), // Default to all interfaces
Environment: getEnv("APP_ENV", "development"), // Default to development
}
return config, nil
}
// getEnv gets an environment variable or returns a default value
func getEnv(key, defaultValue string) string {
value := os.Getenv(key)
if value == "" {
return defaultValue
}
return value
}
// getEnvInt gets an environment variable as an integer or returns a default value
func getEnvInt(key string, defaultValue int) int {
value := os.Getenv(key)
if value == "" {
return defaultValue
}
intValue, err := parseInt(value)
if err != nil {
return defaultValue
}
return intValue
}
// parseInt parses a string to an int
func parseInt(value string) (int, error) {
intValue := 0
_, err := fmt.Sscanf(value, "%d", &intValue)
return intValue, err
}
|
