graph-api-lib 0.2.1

Core library for the graph-api ecosystem - a flexible, type-safe API for working with in-memory graphs in Rust
Documentation 
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use graph_api_lib::Graph;
use graph_api_lib::SupportsEdgeLabelIndex;
use graph_api_simplegraph::SimpleGraph;
use graph_api_test::Edge;
use graph_api_test::Vertex;
use graph_api_test::populate_graph;

fn main() {
    // Create a new graph
    let mut graph = SimpleGraph::new();
    // Populate the graph with test data
    let refs = populate_graph(&mut graph);

    example(&graph, refs.bryn);
}

fn example<G>(graph: &G, bryn_id: G::VertexId)
where
    G: Graph<Vertex = Vertex, Edge = Edge> + SupportsEdgeLabelIndex,
{
    // Count projects that Bryn created using detour
    let bryn_project_count = graph
        .walk()
        .vertices_by_id(vec![bryn_id])
        .push_context(|_, _| 0) // Start with count 0
        .detour(|waypoint| {
            // For each person, find outgoing created edges and count them
            waypoint
                .edges(Edge::created().outgoing())
                .probe(|_e, _ctx| todo!()) // Increment count for each created edge
        })
        .map(|_, count| *count)
        .collect::<Vec<_>>();

    // Bryn should have at least one project
    assert_eq!(bryn_project_count.len(), 1);
    println!("Bryn has {} project(s)", bryn_project_count[0]);
}