---++  GET api/metadata/lineage/vertices/:id
   * <a href="#Description">Description</a>
   * <a href="#Parameters">Parameters</a>
   * <a href="#Results">Results</a>
   * <a href="#Examples">Examples</a>

---++ Description
Gets the vertex with specified id.

---++ Parameters
   * :id is the unique id of the vertex.
   * doAs <optional query param> allows the current user to impersonate the user passed in doAs when interacting with the Falcon system.

---++ Results
Vertex with the specified id.

---++ Examples
---+++ Rest Call
<verbatim>
GET http://localhost:15000/api/metadata/lineage/vertices/4?doAs=joe
</verbatim>
---+++ Result
<verbatim>
{
    "results": [
        {
            "timestamp":"2014-04-21T20:55Z",
            "name":"sampleIngestProcess",
            "type":"process-instance",
            "version":"2.0.0",
            "_id":4,
            "_type":"vertex"
        }
    ]
}
</verbatim>