Option1: Query string in URL

Eg

                      https://example.com?id=1

                      https://example.com?utm_campaign=sale&utm_medium=social&utm_source=twitter
                    

1. We can pass data using '?'

2. Note =, it is used for separating parameter name and parameter value

3. We can pass multiple values. & is used for separating variables

How to generate query string

1. Using a href

                      <a href="https://example.com?id=1">View</a>
                      <a href="https://example.com?utm_campaign=sale&utm_medium=social&utm_source=twitter">View</a>
                   

2. Using form tag with get method

                      
                    <form method="GET">
                          <input type="text" name="id">
                          <input type="text" name="utm_campaign">
                          <input type="text" name="utm_medium">
                          <input type="text" name="utm_source">
                    </form>

                   

How to read the query parameters in the url and use it in the controller