remove async storage from fastify instrumentation

[wconti27]

What does this PR do?

removes async resource storage usage from fastify instrumentation for Node24 compatibility

Motivation

Plugin Checklist

• Unit tests.
• Integration tests.
• Benchmarks.
• TypeScript definitions.
• TypeScript tests.
• API documentation.
• CI jobs/workflows.

Additional Notes

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-08-01 16:53:03

Comparing candidate commit ed80ffc in PR branch conti/remove-async-storage-fastify with baseline commit 7b9b5cf in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 1272 metrics, 51 unstable metrics.

[github-actions]

Overall package size

Self size: 11.13 MB
Deduped: 110.71 MB
No deduping: 111.1 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | @datadog/libdatadog | 0.7.0 | 35.02 MB | 35.02 MB | | @datadog/native-appsec | 10.0.1 | 20.3 MB | 20.3 MB | | @datadog/native-iast-taint-tracking | 4.0.0 | 11.72 MB | 11.73 MB | | @datadog/pprof | 5.9.0 | 9.77 MB | 10.14 MB | | @opentelemetry/core | 1.30.1 | 908.66 kB | 7.16 MB | | protobufjs | 7.5.3 | 2.95 MB | 5.6 MB | | @datadog/wasm-js-rewriter | 4.0.1 | 2.85 MB | 3.58 MB | | @datadog/native-metrics | 3.1.1 | 1.02 MB | 1.43 MB | | @opentelemetry/api | 1.8.0 | 1.21 MB | 1.21 MB | | jsonpath-plus | 10.3.0 | 617.18 kB | 1.08 MB | | import-in-the-middle | 1.14.2 | 122.36 kB | 850.93 kB | | lru-cache | 10.4.3 | 804.3 kB | 804.3 kB | | source-map | 0.7.4 | 226 kB | 226 kB | | opentracing | 0.14.7 | 194.81 kB | 194.81 kB | | pprof-format | 2.1.0 | 111.69 kB | 111.69 kB | | @datadog/sketches-js | 2.1.1 | 109.9 kB | 109.9 kB | | lodash.sortby | 4.7.0 | 75.76 kB | 75.76 kB | | ignore | 7.0.5 | 63.38 kB | 63.38 kB | | istanbul-lib-coverage | 3.2.2 | 34.37 kB | 34.37 kB | | rfdc | 1.4.1 | 27.15 kB | 27.15 kB | | dc-polyfill | 0.1.10 | 26.73 kB | 26.73 kB | | @isaacs/ttlcache | 1.4.1 | 25.2 kB | 25.2 kB | | tlhunter-sorted-set | 0.1.0 | 24.94 kB | 24.94 kB | | shell-quote | 1.8.3 | 23.74 kB | 23.74 kB | | limiter | 1.1.5 | 23.17 kB | 23.17 kB | | retry | 0.13.1 | 18.85 kB | 18.85 kB | | semifies | 1.0.0 | 15.84 kB | 15.84 kB | | jest-docblock | 29.7.0 | 8.99 kB | 12.76 kB | | crypto-randomuuid | 1.0.0 | 11.18 kB | 11.18 kB | | ttl-set | 1.0.0 | 4.61 kB | 9.69 kB | | mutexify | 1.4.0 | 5.71 kB | 8.74 kB | | path-to-regexp | 0.1.12 | 6.6 kB | 6.6 kB | | koalas | 1.0.2 | 6.47 kB | 6.47 kB | | module-details-from-path | 1.0.4 | 3.96 kB | 3.96 kB |

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[codecov]

Codecov Report

❌ Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.24%. Comparing base (7b9b5cf) to head (ed80ffc).
⚠️ Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
packages/datadog-plugin-fastify/src/tracing.js	77.77%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6215      +/-   ##
==========================================
+ Coverage   83.15%   83.24%   +0.08%     
==========================================
  Files         477      477              
  Lines       19749    19759      +10     
==========================================
+ Hits        16422    16448      +26     
+ Misses       3327     3311      -16     

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[rochdev]

This hook is not needed as the previous code created the resource right before doneCallback was called, so basically the addHookFinishCh is enough (although I would also argue the name is confusing as addHook is called when the app starts, and the doneCallback is called on every request, so it's not happening at the same time as adding a hook at all).

[wconti27]

Ive removed the start runStores call, and changed the naming to be callback:exec for the channel. Should be good 👍

[rochdev]

Why is this PR marked as semver-minor instead of semver-patch?

[wconti27]

Why is this PR marked as semver-minor instead of semver-patch?

fixed.