73 lines
1.9 KiB
Rust
73 lines
1.9 KiB
Rust
use crate::extensions::{Extension, ResolveInfo};
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use crate::{Variables};
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use std::collections::BTreeMap;
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use tracing::{span, event, Id, Level};
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use uuid::Uuid;
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/// Tracing extension
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///
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/// # References
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///
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/// https://crates.io/crates/tracing
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#[derive(Default)]
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pub struct Tracing {
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root_id: Option<Id>,
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fields: BTreeMap<usize, Id>,
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}
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impl Extension for Tracing {
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fn parse_start(&mut self, query_source: &str, variables: &Variables) {
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let root_span: tracing::Span = span!(
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target: "async_graphql::graphql",
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parent:None,
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Level::INFO,
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"graphql",
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id = %Uuid::new_v4().to_string(),
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);
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if let Some(id) = root_span.id() {
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tracing::dispatcher::get_default(|d| d.enter(&id));
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self.root_id.replace(id);
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}
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event!(
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target: "async_graphql::query",
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Level::DEBUG,
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%variables,
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query = %query_source
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);
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}
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fn execution_end(&mut self) {
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if let Some(id) = self.root_id.take() {
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tracing::dispatcher::get_default(|d| d.exit(&id));
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}
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}
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fn resolve_start(&mut self, info: &ResolveInfo<'_>) {
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let parent_span = info
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.resolve_id
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.parent
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.and_then(|id| self.fields.get(&id))
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.or_else(|| self.root_id.as_ref())
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.cloned();
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let span = span!(
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target: "async_graphql::field",
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parent: parent_span,
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Level::INFO,
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"field",
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path = %info.path_node,
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);
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if let Some(id) = span.id() {
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tracing::dispatcher::get_default(|d| d.enter(&id));
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self.fields.insert(info.resolve_id.current, id);
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}
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}
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fn resolve_end(&mut self, info: &ResolveInfo<'_>) {
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if let Some(id) = self.fields.remove(&info.resolve_id.current) {
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tracing::dispatcher::get_default(|d| d.exit(&id));
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}
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}
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}
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