US Patent 11663288 Just-in-time front end template generation using logical document object models

Aspects of the disclosure relate to processing systems for performing just-in-time front end template generation using a logical DOM. A computing device may receive, from a web server host platform, an HTML page with a DOM structure. The computing device may parse the DOM structure to generate a logical DOM, which may include a key value store identifying dynamic elements to be updated based on data received from a data source different from the web server host platform. The computing device may receive, from a data source computer system, source data. The computing device may modify the logical DOM, based on the source data, by replacing the dynamic elements with corresponding values from the source data. This may produce a first updated real DOM. The computing device may render a first graphical user interface based on the first updated real DOM, and may display the first graphical user interface.