887703b6a2
This commit adds a complete Go implementation of the Todo application. The application uses Gin framework for the web server, GORM for database access, and SQLite for storage. Key features: - Todo CRUD operations with the same API endpoints - Health check endpoint - Database migrations - Tests for models, services, and API handlers - Documentation for the API - Configurable settings
69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
package config
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"github.com/spf13/viper"
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)
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// Config holds the application configuration
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type Config struct {
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AppName string `mapstructure:"APP_NAME"`
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AppDescription string `mapstructure:"APP_DESCRIPTION"`
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AppVersion string `mapstructure:"APP_VERSION"`
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ServerPort string `mapstructure:"SERVER_PORT"`
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DBPath string `mapstructure:"DB_PATH"`
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DBName string `mapstructure:"DB_NAME"`
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}
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// LoadConfig reads the configuration from environment variables or config file
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func LoadConfig() (*Config, error) {
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// Set default values
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config := &Config{
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AppName: "Go Todo App",
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AppDescription: "A simple Todo application API built with Go, Gin and SQLite",
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AppVersion: "0.1.0",
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ServerPort: "8000",
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DBPath: "/app/storage/db",
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DBName: "db.sqlite",
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}
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// Set up viper
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v := viper.New()
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v.SetConfigName("config")
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v.SetConfigType("yaml")
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v.AddConfigPath(".")
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v.AddConfigPath("./config")
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// Match environment variables with config fields
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v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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v.AutomaticEnv()
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// Try to read from config file (optional)
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if err := v.ReadInConfig(); err != nil {
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if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
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return nil, fmt.Errorf("error reading config file: %v", err)
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}
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}
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// Override config from environment variables
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if err := v.Unmarshal(config); err != nil {
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return nil, fmt.Errorf("error unmarshaling config: %v", err)
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}
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// Ensure DB directory exists
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dbDir := config.DBPath
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if err := os.MkdirAll(dbDir, 0755); err != nil {
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return nil, fmt.Errorf("error creating DB directory: %v", err)
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}
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return config, nil
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}
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// GetDatabaseURL returns the full SQLite database connection string
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func (c *Config) GetDatabaseURL() string {
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return fmt.Sprintf("file:%s", filepath.Join(c.DBPath, c.DBName))
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} |