How to handle the api parameters in webapi fro filter

Hi all I am new in webapi and i am stuck in filter api hope get some solution

 

https://localhost/webservices/catalog/category/57/widgets/paginated?city=Gautam+Buddha+Nagar&pageNumber=0&pageSize=10&sort=relevance

 

for applying filtering

 

https://localhost/webservices/catalog/category/57/widgets/paginated?city=Gautam+Buddha+Nagar&pageNumber=0&pageSize=10&gender=Female&product_form=Tablet&sort=relevance

 

If you see in my api is same but parameter is diffrence in case how can i handle it.