shell> curl -X POST --data-binary @- --dump - http://localhost:8529/_api/index?collection=products <<EOF
{ 
  <span class="hljs-string">"type"</span> : <span class="hljs-string">"hash"</span>, 
  <span class="hljs-string">"unique"</span> : <span class="hljs-literal">true</span>, 
  <span class="hljs-string">"fields"</span> : [ 
    <span class="hljs-string">"a"</span>, 
    <span class="hljs-string">"b"</span> 
  ] 
}
EOF

HTTP/<span class="hljs-number">1.1</span> <span class="hljs-number">201</span> Created
content-type: application/json; charset=utf<span class="hljs-number">-8</span>

{ 
  <span class="hljs-string">"id"</span> : <span class="hljs-string">"products/10347"</span>, 
  <span class="hljs-string">"type"</span> : <span class="hljs-string">"hash"</span>, 
  <span class="hljs-string">"fields"</span> : [ 
    <span class="hljs-string">"a"</span>, 
    <span class="hljs-string">"b"</span> 
  ], 
  <span class="hljs-string">"selectivityEstimate"</span> : <span class="hljs-number">1</span>, 
  <span class="hljs-string">"unique"</span> : <span class="hljs-literal">true</span>, 
  <span class="hljs-string">"sparse"</span> : <span class="hljs-literal">false</span>, 
  <span class="hljs-string">"isNewlyCreated"</span> : <span class="hljs-literal">true</span>, 
  <span class="hljs-string">"error"</span> : <span class="hljs-literal">false</span>, 
  <span class="hljs-string">"code"</span> : <span class="hljs-number">201</span> 
}