Batching Neo4J updates for speed - neo4j

Question

My goal is to have a list of words in the Oxford dictionary with a relationship between them called IS_ONE_STEP_AWAY_FROM. Each word in relationship is the same length and varies by only one letter.
I am currently able to batch insert the words themselves, but how can I batch insert these relationships?
class Word
{
public string Value { get; set; }
}
public void SeedDatabase()
{
var words = new Queue<Word>();
EnqueueWords(words);
//Create the words as a batch
GraphClient.Cypher
.Create("(w:Word {words})")
.WithParam("words", words)
.ExecuteWithoutResults();
//Add relationships one word at a time
while (words.Count > 0)
{
var word = words.Dequeue();
var relatedWords = WordGroups[word.Value].Except(Enumerable.Repeat(word.Value, 1)).ToList();
if (relatedWords.Count > 0)
{
foreach (string relatedWord in relatedWords)
{
GraphClient.Cypher
.Match("(w1 :Word { Value : {rootWord} }), (w2 :Word { Value : {relatedWord} })")
.Create("(w1)-[r:IS_ONE_STEP_AWAY_FROM]->(w2)")
.WithParam("rootWord", word.Value)
.WithParam("relatedWord", relatedWord)
.ExecuteWithoutResults();
}
}
}
}

Answer 1

Peter do you have an index or constraint on :Word(Value) ?
I also don't fully understand how this batches:
GraphClient.Cypher
.Create("(w:Word {words})")
.WithParam("words", words)
.ExecuteWithoutResults();
And where you define the property-name (aka Value).
Do you run this currently concurrently?
For the relationships I'd recommend to group them by start-word.
then you could do something like:
MATCH (w1:Word {Value:{rootWord}})
UNWIND {relatedWords} as relatedWord
MATCH (w2:Word {Value:relatedWord}}
CREATE (w1)-[r:IS_ONE_STEP_AWAY_FROM]->(w2);
Neo4jClient also still have to learn to use the new transactional endpoint.