The GRAPH\_VERTICES function returns all vertices.

`GRAPH_VERTICES (graphName, vertexExample, options)`

According to the optional filters it will only return vertices that have
outbound, inbound or any (default) edges.

*Parameters*

* *graphName*          : The name of the graph as a string.
* *vertexExample*      : An example for the desired
vertices (see [example](#short-explanation-of-the-example-parameter)).
* *options* (optional)           : An object containing the following options:
  * *direction*        : The direction of the edges as a string. Possible values are
     *outbound*, *inbound* and *any* (default).
  * *vertexCollectionRestriction*      : One or multiple
vertex collections that should be considered.

@EXAMPLES

A route planner example, all vertices of the graph

@EXAMPLE_ARANGOSH_OUTPUT{generalGraphVertices1}
  var examples = require("@arangodb/graph-examples/example-graph.js");
  var g = examples.loadGraph("routeplanner");
| db._query("FOR e IN GRAPH_VERTICES("
  +"'routeplanner', {}) RETURN e").toArray();
~ examples.dropGraph("routeplanner");
@END_EXAMPLE_ARANGOSH_OUTPUT

A route planner example, all vertices from collection *germanCity*.

@EXAMPLE_ARANGOSH_OUTPUT{generalGraphVertices2}
  var examples = require("@arangodb/graph-examples/example-graph.js");
  var g = examples.loadGraph("routeplanner");
| db._query("FOR e IN GRAPH_VERTICES("
| +"'routeplanner', {}, {direction : 'any', vertexCollectionRestriction" +
  " : 'germanCity'}) RETURN e").toArray();
~ examples.dropGraph("routeplanner");
@END_EXAMPLE_ARANGOSH_OUTPUT