@opentelemetry/scope-async-hooks
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This package provides async-hooks based scope manager which is used internally by OpenTelemetry plugins to propagate specific scope between function calls and async operations. It only targets NodeJS since async-hooks is only available there.
The definition and why they exist is available on the readme of the scope-base package.
NodeJS has a specific API to track async scope: async-hooks, it allows to track creation of new async operation and their respective parent. This package only handle storing a specific object for a given async hooks context.
Even if the API is native to NodeJS, it doesn't cover all possible cases of scope propagation but there is a big effort from the NodeJS team to fix those. That's why we generally advise to be on the latest LTS to benefit from performance and bug fixes.
There are known modules that break scope propagation (some of them are listed there), so it's possible that the scope manager doesn't work with them.
Context propagation is a big subject when talking about tracing in NodeJS, if you want more informations about that here are some resources:
Apache 2.0 - See LICENSE for more information.
FAQs
OpenTelemetry AsyncHooks-based Scope Manager
The npm package @opentelemetry/scope-async-hooks receives a total of 103 weekly downloads. As such, @opentelemetry/scope-async-hooks popularity was classified as not popular.
We found that @opentelemetry/scope-async-hooks demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
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