Cookies

Cookie is a small piece of data sent from a website server and stored in the user's web browser while browsing. Every time the user loads the website, the browser sends the cookies back to the server to notify the server of user's latest activity. Cookies were designed to be a reliable mechanism for websites to remember stateful information (e.g. items added to the shopping cart in an online store) or to record the user's browsing activity (such as clicking particular buttons, logging in, or user previously visited pages of the website). Cookies can also store form content a user has previously entered, such as username, gender, age, address, etc.

Cookie Attributes ​

Echo uses go standard http.Cookie object to add/retrieve cookies from the context received in the handler function.

Create a Cookie ​

func writeCookie(c echo.Context) error {
	cookie := new(http.Cookie)
	cookie.Name = "username"
	cookie.Value = "jon"
	cookie.Expires = time.Now().Add(24 * time.Hour)
	c.SetCookie(cookie)
	return c.String(http.StatusOK, "write a cookie")
}

Read a Cookie ​

func readCookie(c echo.Context) error {
	cookie, err := c.Cookie("username")
	if err != nil {
		return err
	}
	fmt.Println(cookie.Name)
	fmt.Println(cookie.Value)
	return c.String(http.StatusOK, "read a cookie")
}