AngularJS – SharedDataServices & Refresh Buttons

The use of Shared Data Service in AngularJS allows us to quickly save off information received from server so it can be re-used later, thus limiting the number of hits we need to make. This is especially useful in mobile applications where we have to be conscious of our bandwidth usage.

One of the problems these services have is that they are very tightly coupled to the state of the application, and thus an enemy of the refresh button. In most mobile applications the refresh button isn’t available so we can avoid this issue. However, in Hybrid applications we need to manage our state a little more carefully in case the user is visiting from a desktop or mobile browser.

Let’s assume the following example is one from a Customer Detail Page. This page assumes that The Customer Info is stored in our Shared Data Service, but needs to be smart enough to react if it isn’t present. To do this we can prepare for failure by passing the ID of the customer that is in sharedData in the hash.

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