0.2.1 databatage conectage

config/conf.json

@@ -0,0 +1,11 @@
+{
+    "database": {
+        "host": "localhost",
+        "port": "5432",
+        "user": "postgres",
+        "password": "postgres",
+        "dbname": "ti1",
+        "sslmode": "disable"
+    },
+    "temp": "value"
+}

config/config.go

@@ -0,0 +1,35 @@
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+)
+
+type Config struct {
+	Database struct {
+		Host     string `json:"host"`
+		Port     string `json:"port"`
+		User     string `json:"user"`
+		Password string `json:"password"`
+		DBName   string `json:"dbname"`
+		SSLMode  string `json:"sslmode"`
+	} `json:"database"`
+	Temp string `json:"temp"`
+}
+
+func LoadConfig(file string) (Config, error) {
+	var config Config
+	configFile, err := os.Open(file)
+	if err != nil {
+		return config, fmt.Errorf("failed to open config file: %w", err)
+	}
+	defer configFile.Close()
+
+	jsonParser := json.NewDecoder(configFile)
+	if err := jsonParser.Decode(&config); err != nil {
+		return config, fmt.Errorf("failed to parse config file: %w", err)
+	}
+
+	return config, nil
+}

config/db.go

@@ -0,0 +1,57 @@
+package config
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+
+	_ "github.com/lib/pq"
+)
+
+func ConnectToPostgreSQL() (*sql.DB, error) {
+	fmt.Println("Connecting to PostgreSQL...")
+	config, err := LoadConfig("config/conf.json")
+	if err != nil {
+		return nil, err
+	}
+
+	fmt.Println("Configuration loaded successfully!")
+
+	connStr := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=%s",
+		config.Database.Host, config.Database.Port, config.Database.User, config.Database.Password, config.Database.DBName, config.Database.SSLMode)
+
+	// Open connection to database
+	db, err := sql.Open("postgres", connStr)
+	if err != nil {
+		return nil, err
+	}
+
+	fmt.Println("Connection to PostgreSQL opened successfully!")
+
+	// Ping database to verify connection
+	err = db.Ping()
+
+	fmt.Println(err)
+	if err != nil {
+		return nil, err
+	}
+
+	log.Println("Connected to PostgreSQL!")
+
+	return db, nil
+}
+
+func PrintDBConfig() {
+	config, err := LoadConfig("config/conf.json")
+	if err != nil {
+		fmt.Println("Error loading config:", err)
+		return
+	}
+
+	fmt.Println("Configuration:", config)
+	fmt.Println("Host:", config.Database.Host)
+	fmt.Println("Port:", config.Database.Port)
+	fmt.Println("User:", config.Database.User)
+	fmt.Println("Database Host:", config.Database.Host)
+	fmt.Println("Database Password:", config.Database.Password)
+}