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Add JS API for allocating network request IDs, capturing call stacks - #54051

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Add JS API for allocating network request IDs, capturing call stacks#54051
motiz88 wants to merge 3 commits into
react:mainfrom
motiz88:export-D83238216

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@motiz88 motiz88 commented Oct 3, 2025

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Summary: Changelog: [Internal]

Differential Revision: D83238216

@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Oct 3, 2025
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meta-codesync Bot commented Oct 3, 2025

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@motiz88 has exported this pull request. If you are a Meta employee, you can view the originating Diff in D83238216.

motiz88 added a commit to motiz88/react-native that referenced this pull request Oct 8, 2025
…eact#54051)

Summary:

Adds the private, experimental `__NETWORK_REPORTER__.createDevToolsRequestId()` JavaScript method behind the Fusebox network inspection feature flag.

`createDevToolsRequestId()` returns a unique string ID for a network request, and records the current call stack as the request's [initiator](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#type-Initiator). If the native networking layer passes the same request ID into the C++ `NetworkReporter::reportRequestStart` method, the corresponding CDP [`requestWillBeSent`](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#event-requestWillBeSent) event will contain the stack trace.

Changelog: [Internal]

Reviewed By: robhogan, huntie

Differential Revision: D83238216
motiz88 added a commit to motiz88/react-native that referenced this pull request Oct 8, 2025
…eact#54051)

Summary:

Adds the private, experimental `__NETWORK_REPORTER__.createDevToolsRequestId()` JavaScript method behind the Fusebox network inspection feature flag.

`createDevToolsRequestId()` returns a unique string ID for a network request, and records the current call stack as the request's [initiator](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#type-Initiator). If the native networking layer passes the same request ID into the C++ `NetworkReporter::reportRequestStart` method, the corresponding CDP [`requestWillBeSent`](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#event-requestWillBeSent) event will contain the stack trace.

Changelog: [Internal]

Reviewed By: robhogan, huntie

Differential Revision: D83238216
…act#54050)

Summary:

Changelog: [Internal]

A naive approach to keeping track of request initiators inside the `NetworkHandler` singleton for CDP reporting purposes:

1. Expose a new `recordRequestInitiatorStack` method.
2. Keep the CDP-formatted stack trace (as a `folly::dynamic`) in a map keyed by request ID.
3. Destructively consume the stack trace during `onRequestWillBeSent`.

Reviewed By: huntie

Differential Revision: D83754143
Summary:

Changelog: [Internal]

Adds a minimal standards-compliant UUID v4 generator to `react/utils` for use elsewhere in React Native. We don't need UUID parsing, support for UUID versions other than 4, a UUID value type, or extremely high performance - which makes inlining this simple, portable implementation directly in our codebase acceptable.

Reviewed By: robhogan

Differential Revision: D84149720
…eact#54051)

Summary:

Adds the private, experimental `__NETWORK_REPORTER__.createDevToolsRequestId()` JavaScript method behind the Fusebox network inspection feature flag.

`createDevToolsRequestId()` returns a unique string ID for a network request, and records the current call stack as the request's [initiator](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#type-Initiator). If the native networking layer passes the same request ID into the C++ `NetworkReporter::reportRequestStart` method, the corresponding CDP [`requestWillBeSent`](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#event-requestWillBeSent) event will contain the stack trace.

Changelog: [Internal]

Reviewed By: robhogan, huntie

Differential Revision: D83238216
motiz88 added a commit to motiz88/react-native that referenced this pull request Oct 8, 2025
…eact#54051)

Summary:

Adds the private, experimental `__NETWORK_REPORTER__.createDevToolsRequestId()` JavaScript method behind the Fusebox network inspection feature flag.

`createDevToolsRequestId()` returns a unique string ID for a network request, and records the current call stack as the request's [initiator](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#type-Initiator). If the native networking layer passes the same request ID into the C++ `NetworkReporter::reportRequestStart` method, the corresponding CDP [`requestWillBeSent`](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#event-requestWillBeSent) event will contain the stack trace.

Changelog: [Internal]

Reviewed By: robhogan, huntie

Differential Revision: D83238216
motiz88 added a commit to motiz88/react-native that referenced this pull request Oct 8, 2025
…eact#54051)

Summary:

Adds the private, experimental `__NETWORK_REPORTER__.createDevToolsRequestId()` JavaScript method behind the Fusebox network inspection feature flag.

`createDevToolsRequestId()` returns a unique string ID for a network request, and records the current call stack as the request's [initiator](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#type-Initiator). If the native networking layer passes the same request ID into the C++ `NetworkReporter::reportRequestStart` method, the corresponding CDP [`requestWillBeSent`](https://cdpstatus.reactnative.dev/devtools-protocol/tot/Network#event-requestWillBeSent) event will contain the stack trace.

Changelog: [Internal]

Reviewed By: robhogan, huntie

Differential Revision: D83238216
@meta-codesync meta-codesync Bot closed this in a4be9b2 Oct 8, 2025
@facebook-github-bot facebook-github-bot added the Merged This PR has been merged. label Oct 8, 2025
@meta-codesync

meta-codesync Bot commented Oct 8, 2025

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This pull request has been merged in a4be9b2.

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