io.vertx.core.json.JsonObject&nbsp;payload)</code>
<div class="block">Preflight is called BEFORE we establish a NotesSession/Database and returns a Future.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../com/hcl/domino/keep/dbrequests/designcode/FetchDesignAll.html#process-com.hcl.domino.keep.dbrequests.DbRequestParameters-">process</a></span>(<a href="../../../../../../com/hcl/domin