user_controller.rb

 desc "Api to post user details " do
          failure [
            [500, "something went wrong, please try again later", Entity::Status]
          ]
          success Entity::Status
        end


        params do
          requires :customer_email, type: String, allow_blank: false, email: true, desc: "Customer Email", documentation: { param_type: 'body' }
          requires :contact_no, type: String, allow_blank: false, mobilenumber: true,
                                         desc: "Customer Phone Number", documentation: { param_type: 'body' }
        end

        post "/add_user_info" do
          status = {code: true, subscribed: true, message: "User Details saved."}
           status(200)
          return status
        end