Local storage front calls

This section describes front calls to store data on the front-end platform.

Key/Value pairs can be stored locally on the front-end side with the localStorage front calls.

Local storage is supported by all front-ends.

The data is stored on the platform where the front-end executes, and is persistent across application sessions.

This feature can for example be used to keep a trace of the authenticated users, if the authentication mechanism is written in Genero.

The table shows the functions implemented by all front-ends in the "localStorage" module.

Table 1. localStorage module front-end functions
Function Name Description
ui.Interface.frontCall("localStorage", "clear",
   [], [])
Removes all local storage key/value pairs.
ui.Interface.frontCall("localStorage", "getItem",
   [key], [value])
Returns the current value of local storage key.
ui.Interface.frontCall("localStorage", "keys",
   [], [key-list] )
Returns the list of defined local storage keys.
ui.Interface.frontCall("localStorage", "removeItem",
   [key], [])
Deletes the specified local storage key.
ui.Interface.frontCall("localStorage", "setItem",
   [key,value], [])
Sets a value for local storage key.