Add API method to connect to server with given url

api.go

@@ -34,6 +34,36 @@ func API_Home(c *gin.Context) {
 	c.Data(200, "text/html; charset=utf-8", data)
 }
 
+func API_Connect(c *gin.Context) {
+	url := c.Request.FormValue("url")
+
+	if url == "" {
+		c.JSON(400, Error{"Url parameter is required"})
+		return
+	}
+
+	client, err := NewClientFromUrl(url)
+	if err != nil {
+		c.JSON(400, Error{err.Error()})
+		return
+	}
+
+	err = client.Test()
+	if err != nil {
+		c.JSON(400, Error{err.Error()})
+		return
+	}
+
+	info, err := client.Info()
+
+	if err == nil {
+		dbClient.db.Close()
+		dbClient = client
+	}
+
+	c.JSON(200, info.Format()[0])
+}
+
 func API_GetDatabases(c *gin.Context) {
 	names, err := dbClient.Databases()
 

client.go

@@ -32,6 +32,16 @@ func NewClient() (*Client, error) {
 	return &Client{db: db}, nil
 }
 
+func NewClientFromUrl(url string) (*Client, error) {
+	db, err := sqlx.Open("postgres", url)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &Client{db: db}, nil
+}
+
 func (client *Client) Test() error {
 	return client.db.Ping()
 }

main.go

@@ -114,6 +114,7 @@ func startServer() {
 	}
 
 	router.GET("/", API_Home)
+	router.POST("/connect", API_Connect)
 	router.GET("/databases", API_GetDatabases)
 	router.GET("/info", API_Info)
 	router.GET("/tables", API_GetTables)