pollInterval with fetchPolicy of 'cache-first'

Use case: I want a query to load data from the cache, and only fetch from network if it’s been more than 1 day. The API docs indicate that I need to use fetchPolicy: 'cache-first' and pollInterval: 1000*60*60*24.

But this gives me the error (attached) ‘Queries that specify the cache-first and cache-only fetchPolicies cannot also be polling queries.’.

Why should that be the case? The expected behavior would be for the Apollo client to include a timestamp in its redux store of the last time the query was fetched. Then in setup it should check if it’s been more than pollInterval since the last fetch. I believe that was how it worked before v1.

[scf4]

I had this error using fetchPolicy: 'network-only' with server-side rendering.

Need to check for window object e.g. pollInterval: typeof window === 'undefined' ? null : 180 * 1000,

I guess the error message could be more clear 😄

[sgtpepper43]

I just want to add another use case for this: We have an expensive query that, on page load, we would like to fetch, but on any subsequent requests, we want to grab it from the cache. So we use cache-first. However this value can be updated by other users on the system, it’s just a count so it’s not that important that it’s up-to-date, but, we want it to update from the server every five minutes. It’s not that weird of a case, so it seems odd that it wouldn’t be supported.