wasmcloud-redisgraph

Crates.iowasmcloud-redisgraph
lib.rswasmcloud-redisgraph
version0.3.3
sourcesrc
created_at2021-02-11 18:16:02.139163
updated_at2021-05-18 20:42:59.114413
descriptionRedisGraph implementation of the wasmCloud Graph Database capability provider contract
homepagehttps://wasmcloud.dev
repositoryhttps://github.com/wasmcloud/capability-providers
max_upload_size
id353882
size30,634
wasmCloud Automation Bot (wasmcloud-automation)

documentation

https://docs.rs/wasmcloud-redisgraph

README

crates.io Rust license documentation

wasmCloud Graph Database Provider (Redis Graph)

This repository contains a sample actor, and the main capability provider library.

While the actor and common libraries should be usable across different types of graph databases, this provider is build on top of Redis Graph.

The following sample shows just how few lines of code are required to build an actor that responds to HTTP requests, reads and writes graph data, and exposes results over HTTP as JSON:

actor_handlers! { codec::http::OP_HANDLE_REQUEST => handle_http_request,
                  codec::core::OP_HEALTH_REQUEST => health }

fn handle_http_request(req: codec::http::Request) -> HandlerResult<codec::http::Response> {    
    if req.method.to_uppercase() == "POST" {
        create_data()
    } else {
        query_data()
    }
}

// Execute a Cypher query to return data values
fn query_data() -> HandlerResult<codec::http::Response> {
    let (name, birth_year): (String, u32) =
        graph::default().graph("MotoGP")
            .query("MATCH (r:Rider)-[:rides]->(t:Team) WHERE t.name = 'Yamaha' RETURN r.name, r.birth_year")?;

    let result = json!({
        "name": name,
        "birth_year": birth_year
    });
    Ok(codec::http::Response::json(result, 200, "OK"))
}

fn health(_req: codec::core::HealthRequest) -> HandlerResult<()> {
    Ok(())
}
Commit count: 573

cargo fmt