75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
package config
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import (
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"fmt"
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"os"
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"strconv"
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"strings"
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)
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type Configuration struct {
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ApiKey string
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Language string
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Units Units
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Port int
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JwtSecret string
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SentryDsn string
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}
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func (config Configuration) String() string {
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return fmt.Sprintf("api_key=%s language=%s, units=%s, port=%d, jwt_secret=%s", config.ApiKey, config.Language, config.Units, config.Port, config.JwtSecret)
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}
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//returns a new Config struct
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func LoadConfiguration() *Configuration {
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return &Configuration{
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ApiKey: getEnv("API_KEY", ""),
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Language: getEnv("LANGUAGE", "en"),
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Units: StringToUnit(getEnv("UNITS", "metric")),
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Port: getEnvAsInt("PORT", 8080),
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JwtSecret: getEnv("JWT_SECRET", "super secret value"),
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SentryDsn: getEnv("SENTRY_DSN", ""),
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}
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}
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// Simple helper function to read an environment or return a default value
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func getEnv(key string, defaultVal string) string {
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if value, exists := os.LookupEnv(key); exists {
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return value
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}
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return defaultVal
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}
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// Simple helper function to read an environment variable into integer or return a default value
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func getEnvAsInt(name string, defaultVal int) int {
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valueStr := getEnv(name, "")
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if value, err := strconv.Atoi(valueStr); err == nil {
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return value
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}
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return defaultVal
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}
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type Units int
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const (
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Metric Units = iota
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Imperial
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)
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func (unit Units) String() string {
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return [...]string{"metric", "imperial"}[unit]
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}
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func StringToUnit(string string) Units {
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if strings.EqualFold(string, "metric") {
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return Metric
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} else {
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return Imperial
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}
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}
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