graphz

Last updated: 2026-03-23

Crate: graphz (Visualization)

Path: graphz/

Async Graphviz DOT language generator for DAG visualization.

API

pub trait GraphSerializer: Send + Sync {
    async fn push(&self, str: &str, suffix: &str) -> Result<(), GraphzError>;
}

Implementations: StringSerializer, ListSerializer (sends via tokio oneshot), FileSerializer.

Graphz builder:

• edge(src, dst, style, arrow_head, constraint)
• node(name, shape, style, color, label)
• close()

Top-level functions:

• apply(name, type, serializer, ...) -- Create graph
• subgraph(name, type, serializer, ...) -- Nested subgraph

Enums: GraphType (Graph, DiGraph), GraphShape (Circle, DoubleCircle, Box, PlainText, Msquare, Record), GraphStyle (Solid, Bold, Filled, Invis, Dotted, Dashed), GraphRank, GraphRankDir, GraphArrowType.

Tests

12 async tests in tests/graphz_tests.rs covering simple graphs, digraphs, edges, nodes, subgraphs, and performance (1000-edge test).

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