Micro-service for file storage and processing written in Go
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package settings
import (
"encoding/json"
"os"
"path/filepath"
"github.com/spf13/afero"
)
const (
Local FileSystemType = iota
)
type FileSystemType int
type Settings struct {
Endpoint string `json:"endpoint"`
Token string `json:"token"`
StorageProvider StorageSettings `json:"storage_provider"`
}
type StorageSettings struct {
Type FileSystemType `json:"type"`
BasePath string `json:"base_path"`
}
func parseSettings(data []byte) Settings {
settings := Settings{}
err := json.Unmarshal(data, &settings)
if err != nil {
return Settings{}
}
return settings
}
func LoadSettings(fileSystem afero.Fs) (Settings, error) {
workingDirectory, _ := os.Getwd()
path := filepath.Join(workingDirectory, "settings.json")
// Load file and parse file
data, err := afero.ReadFile(fileSystem, path)
if err == nil {
return parseSettings(data), nil
}
// If file does not exist, create default settings
defaultSettings := Settings{
Endpoint: "127.0.0.1:8000",
Token: "changeme",
StorageProvider: StorageSettings{
Type: Local,
BasePath: "assets",
},
}
serializedSettings, err := json.MarshalIndent(defaultSettings, "", "\t")
if err != nil {
return Settings{}, err
}
err = afero.WriteFile(fileSystem, path, serializedSettings, os.ModePerm)
if err != nil {
return Settings{}, err
}
return defaultSettings, nil
}