Explain Query String of Client Side Strategies.

 Query String

• It is generally used for holding values

• It works temporarily

• It increases the performance of the app.

Example

We can pass a limited amount of data from one request to another by adding it to the query string of the new request. This is useful for capturing the state in a persistent manner and allows the sharing of links with the embedded state.

public IActionResult GetQueryString(string name, int age) {

User newUser = new User()

{

Name = name,

Age = age

};

return View(newUser);

}

Now let’s invoke this method by passing query string parameters:

 /welcome/getquerystring?name=John&age=31

• We can retrieve both the name and age values from the query string and display it on the page.

•  As URL query strings are public, we should never use query strings for sensitive data.

• In addition to unintended sharing, including data in query strings will make our application vulnerable to Cross-Site Request Forgery (CSRF) attacks, which can trick users into visiting malicious sites while authenticated. Attackers can then steal user data or take malicious actions on behalf of the user.