Struct async_graphql::extensions::Tracing

[+] Show declaration

pub struct Tracing;

This is supported on crate feature tracing only.

[−] Expand description

Tracing extension

References

https://crates.io/crates/tracing

Examples

use async_graphql::*;
use async_graphql::extensions::{Tracing, TracingConfig};
use tracing::{span, Level, Instrument};

#[derive(SimpleObject)]
struct Query {
    value: i32,
}

let schema = Schema::build(Query { value: 100 }, EmptyMutation, EmptySubscription).
    extension(Tracing::default())
    .finish();

tokio::runtime::Runtime::new().unwrap().block_on(async {
    schema.execute(Request::new("{ value }")).await;
});

// tracing in parent span
tokio::runtime::Runtime::new().unwrap().block_on(async {
    let root_span = span!(
        parent: None,
        Level::INFO,
        "span root"
    );
    schema.execute(Request::new("{ value }")).instrument(root_span).await;
});

// replace root span
tokio::runtime::Runtime::new().unwrap().block_on(async {
    let root_span = span!(
        parent: None,
        Level::INFO,
        "span root"
    );
    schema.execute(Request::new("{ value }").data(TracingConfig::default().parent_span(root_span))).await;
});

Trait Implementations

impl Default for Tracing[+]

[+] Show hidden undocumented items

fn default() -> Tracing[−]

Returns the “default value” for a type.

impl ExtensionFactory for Tracing[+]

[+] Show hidden undocumented items

fn create(&self) -> Box<dyn Extension>[−]

Create an extended instance.