Layer7 API Management

May I know which assertions should we use to validate  format or pattern of query parameter.

Example:

email pattern validation.

      -  {a-z} characters should be allowed

      -  {0-9} integers

      - only one character '@' 

      - Special characters dot, underscore is allowed

      - max length limit

      and so on.

Regards

Kareem

We can implement this functionality using regular expressions in Compare Expressions assertions. 

1 - Add Compare Expression assertion.

2 - Select 'Expression' and enter email parameter values ex: ${request.http.parameter.email}

3 - For Rules click 'Add' button.

4. - From Rule Selection pop-up select rule type 'Regular Expression' from the drop down options. 

5 - Provide regular expression to validate the email format. For example:

      [A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}

For more information on regular expressions visit below URL:
Regular-Expressions.info - Regex Tutorial, Examples and Reference - Regexp Patterns 

Regards

Kareem