This method adds an edge to the database.
When working with a Graph database, whether transactional or non-transactional, when you want to add an edge to the graph, use this method. This adds a new edge record to the database and ensures that the relevant vertices are also updated, keeping the graph consistent.
var edge = db.addEdge(<record-id>, <out>, <in>, <label>)
<record-id>Defines the Record ID.
<out>Defines the out vertex.
<in>Defines the in vertex.
<label>Defines a name or label for the edge.
NOTE: You can use the
getVertex()method to retrieve the in and out vertices to connect the edge.
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