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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0; padding-top: 10px"> <span class="diffcontext">I have implemented something that possibly could work.<br>{code}<br>/**<br>* Creates new instance of client with empty cache. <br>* Can change context of the app (onLogout etc.)<br>*/<br>client.fushCacheStorage = async ()=>{<br> await client. destroyClient()<br> window.localstorage.removeitem(config.storageKey);<br> // Requires us to use custom cache key in cache persist<br> window.localstorage.removeitem(config.cacheKey);<br> client = await createClient(config)<br> return client;<br>}<br>{code}<br><br>Let's do something like this and call it a day.<br><br>Edit: <br><br>After testing this I see that this can be problematic in terms of elements we do not control: , client instance could be spread around different user components. There are two ways to do that - we can replace client internally with reference to the new one. The entire thing is quite risky in terms of the processing so we will need to make sure that previous client is also destroyed properly before we do execute another command.<br><br>Using metalanguage:<br><br>1. Destroy client to stop processing everything<br>2. Clear cache<br>3. Clear offline storage (probably riskiest stuff ever)<br>4. initialize new client<br>5. Swap client (this should be probably responsiblity of the user and it will work with showcase as we have single instance that is being hold in service but for react previous versions will be burried deep inside components - by flushing users also need to reinitialize entire app.<br></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br><br>EDIT2:<br><br>I think this is that kind of bug where we need to step back and think about it from a different point of view. While bug is trivial to fix after fix we can have very problematic side effects. <br>Additionally we will be vulnerable to internal changes of the Apollo client that can lead to data loss in situations where data will be lost without user actually trying to logout. <br><br>I have played with this stuff and I think that we can resolve this bug in very neat and clever way. Instead of wiping the data we can introduce new parameter called application context.<br>This application context can be simple string that provides key for current usage.<br>When using this context both cache and offline data will be saved with the prefix. <br>This means that for login anjd logout operations we can provide username as context.<br>There will be numerous benefits from this:<br>- No data lost! You will be able to login and logout again to the same account and enjoy the same data (incuding offline)<br>- Cache flush is not needed as we should just give users ability to reinitialize client again with different context<br>- We do not need to deal with problems of unfinished operations, offline queue being broken and tons of corner cases that destruct is causing ( when you check code we will see that this can have critical impact on our links)<br>- Replacing client is not the business of SDK - no magic - users are responsible for refreshing their components to get new client.<br></span> </td>
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