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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://issues.jboss.org/browse/AEROGEAR" style="color: #3b73af; text-decoration: none">AeroGear</a> / <a href="https://issues.jboss.org/browse/AEROGEAR-8333" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-40c41588-cea8-4a25-abad-ef02a8d11d9f" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://issues.jboss.org/browse/AEROGEAR-8333" style="color: #3b73af; text-decoration: none">AEROGEAR-8333</a> </td>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://issues.jboss.org/browse/AEROGEAR-8333" style="color: #3b73af; text-decoration: none">[DataSync] No optimistic updates for failed replayOfflineMutations</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="wtrocki" id="email_wtrocki" href="https://issues.jboss.org/secure/ViewProfile.jspa?name=wtrocki" style="color:#0052cc;; color: #3b73af; text-decoration: none">Wojciech Trocki</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <span class="diffcontext">Example:<br># start apollo-voyager-ionic-example (including server)<br># go offline<br># create a task<br># kill server<br># refresh page<br># go online<br># local storage still contains failed replayed offline mutation<br># but it is not visible in app<br><br>Edit (by [~darahayes]): There is also another way to see the same bug.<br><br># Start apollo-voyager-ionic-example on a real mobile device (including server) <br># Create some tasks while online<br># Go offline<br># Create a task 'Created while offline'<br># Create another task and also update it. 'Created and updated while offline'<br># Update a task that existed before you went offline<br># Force close the app<br># Reopen the app while still offline<br># You will see your update on the task that existed before you went offline.<br># You will not see your tasks you created while offline<br># In the chrome debugger you can navigate to the Application tab and look at the local storage for the app and you will see in the offline mutation queue that your mutations are still in the queue but you can no longer see them on the screen<br><br>h4. Solutions<br><br>Persist required data to build optimistic response and update functions (as they are linked together)<br>Within SDK we have helper for providing optimistic responses.</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br>Update functions are mostly hard to write and require boilerplate code.</span> <span class="diffcontext"> <br></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br>h5. How this will work<br><br>We can provide helper method for building update function based on the optimisticResponse format.<br>The same helper can be later used to restore state. <br><br></span> <span class="diffcontext">Going to provide concept and early PR soon.</span> </td>
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