Method and system to update a front end client

A computer-implemented system comprising:

• at least one processor coupled to a memory;
• a plurality of front-end web applications, each front end web application being at a front-end server system to provide a first user that has a first set of entitlements for web-based services with access to a first version of web-based services and to provide a second user that has a second set of entitlements for the web-based services with access to a second version of the web-based services;
• a back-end application to provide a storage repository to store information used in constructing one or more web pages of the front-end web applications, the stored information including the users' entitlements for the web-based services;
• and
• a plurality of entitlement client modules, each entitlement client module being associated with a respective front-end web application and configured to mediate calls from the associated front-end web application to the back-end application, wherein an entitlement client module builds a list and a dependency graph of types of data being requested from the back-end application with respect to a user's sessions with the web-based services and uses the list to preemptively fetch data from the back-end application for the user based on the constructed list of the types of data in order to generate web pages requested by the user;
• a plurality of reloading wrapper modules, each reloading wrapper module associated with a respective entitlement client module to, using the at least one processor:
• automatically detect a new version of the entitlement client module,
• obtain the new version of the entitlement client module from the back-end, and
• replace the entitlement client module with the new version of the entitlement client module without disrupting operation of the front-end web application.

A machine-readable non-transitory storage medium having instruction data to cause a machine to perform operations comprising:

• executing a plurality of front-end web applications, each front end web application being at a front-end server system to provide a first user that has a first set of entitlements for web-based services with access to a first version of web-based services and to provide a second user that has a second set of entitlements for the web-based services with access to a second version of the web-based services;
• executing a back-end application, the back-end application to provide a storage repository to store information used in constructing one or more web pages of the front-end web applications, the stored information including the users' entitlements for the web-based services;
• and
• executing a plurality of entitlement client modules, each entitlement client module being associated with a respective front-end web application and configured to mediate calls from the associated front-end web application to the back-end application, wherein an entitlement client module builds a list and a dependency graph of types of data being requested from the back-end application with respect to a user's sessions with the web-based services and uses the list to preemptively fetch data from the back-end application for the user based on the constructed list of the types of data in order to generate web pages requested by the user;
• executing a plurality of reloading wrapper module, the reloading wrapper modules, each reloading wrapper module associated with a respective entitlement client module to:
• automatically detect a new version of the entitlement client module,
• obtain the new version of the entitlement client module, and
• replace the entitlement client module with the new version of the entitlement client module without disrupting operation of the front-end web application.