nyanimedb/modules/backend/main.go
Iron_Felix 102d15c5fd
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feat: connection to db logic added to main
2025-10-11 02:19:33 +03:00

117 lines
2.8 KiB
Go

package main
import (
"context"
"fmt"
"nyanimedb-server/api"
"nyanimedb-server/db"
"os"
"reflect"
"time"
"github.com/gin-contrib/cors"
"github.com/gin-gonic/gin"
"github.com/jackc/pgx/v5"
"github.com/pelletier/go-toml/v2"
)
var AppConfig Config
func main() {
// if len(os.Args) != 2 {
// AppConfig.Mode = "env"
// } else {
// AppConfig.Mode = "argv"
// }
// err := InitConfig()
// if err != nil {
// log.Fatalf("Failed to init config: %v\n", err)
// }
conn, err := pgx.Connect(context.Background(), os.Getenv("DATABASE_URL"))
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to connect to database: %v\n", err)
os.Exit(1)
}
defer conn.Close(context.Background())
r := gin.Default()
queries := db.New(conn)
server := api.NewServer(queries)
// r.LoadHTMLGlob("templates/*")
r.Use(cors.New(cors.Config{
AllowOrigins: []string{"*"}, // allow all origins, change to specific domains in production
AllowMethods: []string{"GET", "POST", "PUT", "DELETE"},
AllowHeaders: []string{"Origin", "Content-Type", "Accept"},
ExposeHeaders: []string{"Content-Length"},
AllowCredentials: true,
MaxAge: 12 * time.Hour,
}))
api.RegisterHandlers(r, api.NewStrictHandler(
server,
// сюда можно добавить middlewares, если нужно
[]api.StrictMiddlewareFunc{},
))
// r.GET("/", func(c *gin.Context) {
// c.HTML(http.StatusOK, "index.html", gin.H{
// "title": "Welcome Page",
// "message": "Hello, Gin with HTML templates!",
// })
// })
// r.GET("/api", func(c *gin.Context) {
// items := []Item{
// {ID: 1, Title: "First Item", Description: "This is the description of the first item."},
// {ID: 2, Title: "Second Item", Description: "This is the description of the second item."},
// {ID: 3, Title: "Third Item", Description: "This is the description of the third item."},
// }
// c.JSON(http.StatusOK, items)
// })
r.Run(":8080")
}
func InitConfig() error {
if AppConfig.Mode == "argv" {
content, err := os.ReadFile(os.Args[1])
if err != nil {
return err
}
toml.Unmarshal(content, &AppConfig)
fmt.Printf("%+v\n", AppConfig)
return nil
} else if AppConfig.Mode == "env" {
f := reflect.ValueOf(AppConfig)
for i := 0; i < f.NumField(); i++ {
field := f.Type().Field(i)
tag := field.Tag
env_var := tag.Get("env")
fmt.Printf("Field: %v.\nEnvironment variable: %v.\n", field.Name, env_var)
if env_var != "" {
env_value, exists := os.LookupEnv(env_var)
if !exists {
return fmt.Errorf("there is no env variable %s", env_var)
}
err := setField(&AppConfig, field.Name, env_value)
if err != nil {
return fmt.Errorf("failed to set config field %s: %v", field.Name, err)
}
}
}
return nil
} else {
return fmt.Errorf("incorrect config mode")
}
}