Provided, in an aspect, is a method for performing an online transaction using a graphical construct. The method can include receiving, by a client device, inputs to generate the graphical construct; transmitting to a server in communication with the client device, a request to generate the graphical construct; receiving, by the client device, the generated graphical construct and a summary information from the server; displaying, through a user interface of the client device, a summary screen including the generated graphical construct and the summary information; embedding, by the client device, the generated graphical construct on a third-party application running on the client device; sending, by the client device, a transaction request to perform the online transaction using the generated graphical construct; and presenting for display, through the user interface of the client device, a notification including a status of the online transaction.