shell> curl -X PATCH --data-binary @- --dump - http://localhost:8529/_api/graph/graph/vertex/v1 <<EOF
{ 
  <span class="hljs-string">"optional1"</span> : <span class="hljs-string">"vertexPatch"</span> 
}
EOF

HTTP/<span class="hljs-number">1.1</span> <span class="hljs-number">202</span> Accepted
content-type: application/json; charset=utf-<span class="hljs-number">8</span>
etag: <span class="hljs-number">752939324</span>

{ 
  <span class="hljs-string">"vertex"</span> : { 
    <span class="hljs-string">"_id"</span> : <span class="hljs-string">"vertices/v1"</span>, 
    <span class="hljs-string">"_key"</span> : <span class="hljs-string">"v1"</span>, 
    <span class="hljs-string">"_rev"</span> : <span class="hljs-string">"752939324"</span>, 
    <span class="hljs-string">"optional1"</span> : <span class="hljs-string">"vertexPatch"</span> 
  }, 
  <span class="hljs-string">"error"</span> : <span class="hljs-literal">false</span>, 
  <span class="hljs-string">"code"</span> : <span class="hljs-number">202</span> 
}
shell> curl -X PATCH --data-binary @- --dump - http://localhost:8529/_api/graph/graph/vertex/v1 &lt;&lt;EOF
{ 
  <span class="hljs-string">"optional1"</span> : <span class="hljs-literal">null</span> 
}
EOF

HTTP/<span class="hljs-number">1.1</span> <span class="hljs-number">202</span> Accepted
content-type: application/json; charset=utf-<span class="hljs-number">8</span>
etag: <span class="hljs-number">753463612</span>

{ 
  <span class="hljs-string">"vertex"</span> : { 
    <span class="hljs-string">"_id"</span> : <span class="hljs-string">"vertices/v1"</span>, 
    <span class="hljs-string">"_key"</span> : <span class="hljs-string">"v1"</span>, 
    <span class="hljs-string">"_rev"</span> : <span class="hljs-string">"753463612"</span>, 
    <span class="hljs-string">"optional1"</span> : <span class="hljs-literal">null</span> 
  }, 
  <span class="hljs-string">"error"</span> : <span class="hljs-literal">false</span>, 
  <span class="hljs-string">"code"</span> : <span class="hljs-number">202</span> 
}