How make a Neo4jClient query with an array of params?

Question

In original Cypher:

    MATCH (user)
    WHERE user.name IN ['Joe', 'John', 'Sara', 'Maria', 'Steve'] 
    RETURN user

something like:

    public Nodes Parse(string[] Str)
    {
        Nodes res = graphClient.Cypher.OptionalMatch("(a)-[]->(b)")    
        .Where((Vertex a) => a.Name == Parallel.ForEach<string>(Str, (s) =>  return s))   //NOT WORK! return is illegal
        .Return((a, b) => new Nodes { Source = a.As<Vertex>(), Peers = b.CollectAs<Vertex>().ToList() })
        .Results.FirstOrDefault();
        return res;
    }

And when full documentation of Neo4jClient become available ?)

Answer 1

To change your code you would do:

public Nodes Parse(string[] str)
{
    var query = graphClient.Cypher
        .Match("(a)-[]-?(b)")
        .Where("a.Name IN $namesParam")
        .WithParam("namesParam", str)
        .Return((a,b) => new Nodes {
            Source = a.As<Vertex>(),
            Peers = b.CollectAs<Vertex>()
        });
    var result = query.Results.FirstOrDefault();
    return result;
}

To do what your query at the top says, you would do:

var names = new [] {"Joe", "John", "Sara", "Maria", "Steve"};
var users = graphClient
    .Match("(user)")
    .Where("user.name IN $names")
    .WithParam("names", names)
    .Return(user => user.As<User>())
    .Results;

I'm afraid there will probably never be full documentation of the client, unless other people want to contribute.