3b7ed74d11
- examples to fix still
- error_extensions.md ResultExt example does not compile!
- trait ErrorExtensions is not implemented for ParseIntError
- dataloader
- requires sqlx to work. So we either "stub" it OR we rewrite them simpler to use a simple "faux" db library
21 lines
592 B
Markdown
21 lines
592 B
Markdown
# Apollo Tracing支持
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`Apollo Tracing`提供了查询每个步骤的性能分析结果，它是一个`Schema`扩展，性能分析结果保存在`QueryResponse`中。
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启用`Apollo Tracing`扩展需要在创建`Schema`的时候添加该扩展。
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```rust
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# extern crate async_graphql;
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use async_graphql::*;
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use async_graphql::extensions::ApolloTracing;
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# struct Query;
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# #[Object]
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# impl Query { async fn version(&self) -> &str { "1.0" } }
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let schema = Schema::build(Query, EmptyMutation, EmptySubscription)
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.extension(ApolloTracing) // 启用ApolloTracing扩展
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.finish();
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```
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