94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
package config
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import (
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"fmt"
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"strings"
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"github.com/spf13/viper"
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)
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type Config struct {
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Hostname string `mapstructure:"HOSTNAME"`
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Port string `mapstructure:"PORT"`
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DatabaseUrl string `mapstructure:"POSTGRES_URL"`
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RedisUrl string `mapstructure:"REDIS_URL"`
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MinioUrl string `mapstructure:"MINIO_URL"`
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JwtAlgorithm string `mapstructure:"JWT_ALGORITHM"`
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JwtSecret string `mapstructure:"JWT_SECRET"`
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JwtIssuer string `mapstructure:"JWT_ISSUER"`
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JwtAudience string `mapstructure:"JWT_AUDIENCE"`
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JwtExpAccess int `mapstructure:"JWT_EXP_ACCESS"`
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JwtExpRefresh int `mapstructure:"JWT_EXP_REFRESH"`
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Environment string `mapstructure:"ENVIRONMENT"`
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}
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func Load() (*Config, error) {
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viper.SetDefault("HOSTNAME", "localhost")
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viper.SetDefault("PORT", "8080")
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viper.SetDefault("JWT_ALGORITHM", "HS256")
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viper.SetDefault("JWT_SECRET", "default_jwt_secret_please_change")
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viper.SetDefault("JWT_EXP_ACCESS", 5)
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viper.SetDefault("JWT_EXP_REFRESH", 10080)
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viper.SetDefault("JWT_AUDIENCE", "easywish")
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viper.SetDefault("JWT_ISSUER", "easywish")
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viper.SetDefault("ENVIRONMENT", "production")
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viper.AutomaticEnv()
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// Viper's AutomaticEnv() expects lowercase keys for unmarshalling into structs by default,
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// while the environment variables and struct tags are in uppercase.
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// Here's the stupidity we have to do to fix it:
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viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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viper.BindEnv("HOSTNAME")
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viper.BindEnv("PORT")
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viper.BindEnv("POSTGRES_URL")
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viper.BindEnv("REDIS_URL")
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viper.BindEnv("MINIO_URL")
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viper.BindEnv("JWT_ALGORITHM")
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viper.BindEnv("JWT_SECRET")
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viper.BindEnv("JWT_ISSUER")
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viper.BindEnv("JWT_AUDIENCE")
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viper.BindEnv("JWT_EXP_ACCESS")
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viper.BindEnv("JWT_EXP_REFRESH")
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viper.BindEnv("ENVIRONMENT")
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required := []string{
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"POSTGRES_URL",
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"REDIS_URL",
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"MINIO_URL",
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}
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var missing []string
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for _, key := range required {
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if !viper.IsSet(key) {
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missing = append(missing, key)
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}
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}
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if len(missing) > 0 {
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return nil, fmt.Errorf("missing required environment variables: %s", strings.Join(missing, ", "))
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}
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var cfg Config
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if err := viper.Unmarshal(&cfg); err != nil {
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return nil, fmt.Errorf("failed to unmarshal config: %w", err)
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}
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config = &cfg
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return &cfg, nil
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}
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func GetConfig() *Config {
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if config == nil {
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if _, err := Load(); err != nil {
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panic(err)
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}
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}
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return config
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}
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var config *Config
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