Golang Config Examples

Example #1

File: config.go Project: caihua-yin/hello-go

// MergeConfigOverrides merges current config with overrides loaded from other sources
func MergeConfigOverrides(config *confer.Config, configParts map[string]interface{}) error {
	keys := make([]string, len(configParts))
	i := 0
	for key := range configParts {
		keys[i] = key
		i++
	}

	sort.Strings(keys)

	for _, key := range keys {
		log.Printf("Merging overrides from key %s...", key)

		err := config.MergeAttributes(configParts[key])
		if err != nil {
			return fmt.Errorf("unable to merge data for key %s (data %#v): %s", key, configParts[key], err)
		}
	}

	return nil
}

Example #2

File: consul.go Project: caihua-yin/hello-go

// NewConsulFromConfig initializes Consul client based on config + environment overrides
func NewConsulFromConfig(config *confer.Config, configPrefix string) (client *api.Client, consulPrefix string, err error) {
	upperPrefix := strings.ToUpper(configPrefix)

	config.BindEnv(upperPrefix+"_ENABLED", configPrefix+".enabled")
	config.BindEnv(upperPrefix+"_SCHEME", configPrefix+".scheme")
	config.BindEnv(upperPrefix+"_ADDRESS", configPrefix+".address")
	config.BindEnv(upperPrefix+"_PREFIX", configPrefix+".prefix")
	config.BindEnv(upperPrefix+"_TOKEN", configPrefix+".token")

	if !config.GetBool(configPrefix + ".enabled") {
		// Consul is disabled
		return
	}

	conf := api.DefaultConfig()
	conf.Scheme = config.GetString(configPrefix + ".scheme")
	conf.Address = config.GetString(configPrefix + ".address")
	conf.Token = config.GetString(configPrefix + ".token")

	consulPrefix = config.GetString(configPrefix + ".prefix")
	client, err = api.NewClient(conf)

	return
}