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PR-URL: https://github.com/nodejs/node/pull/53243 Reviewed-By: Gabriel Schulhof <gabrielschulhof@gmail.com> Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
2.3 KiB
2.3 KiB
Contributing a new API to Node-API
Node-API is the ABI-stable API for native addons. We encourage contributions to enhance the API, while also ensuring compatibility and adherence to guidelines. When adding a new API to Node-API, please follow these principles and guidelines:
Core principles
-
Adherence to Node-API standards
- Must be a C API.
- Must not throw exceptions.
- Must return
napi_status
. - Should consume
napi_env
. - Must operate on primitive data types, pointers to primitive data types, or opaque handles.
- Must be a necessary API, not a convenience API (which belongs in node-addon-api).
- Must not break ABI compatibility with other Node.js versions.
-
Maintaining VM agnosticism
- New APIs should be compatible with various JavaScript VMs.
Documentation and testing
-
Documentation
- PRs introducing new APIs must include corresponding documentation updates.
- Experimental APIs must be clearly documented as experimental and require an explicit compile-time flag
to opt-in (
#define
).
-
Testing
- PRs must include at least one test case demonstrating API usage.
- Should include test cases for various interesting uses of the API.
- Should provide a sample demonstrating realistic usage, similar to a real-world addon.
Process and approval
-
Team discussion
- New APIs should be discussed in a Node-API team meeting.
-
Review and approval
- A new API addition must be signed off by at least two Node-API team members.
- Should be implemented in at least one other VM implementation of Node.js.
-
Experimental phase
- New APIs must be marked as experimental for at least one minor Node.js release before promotion.
- Must have a feature flag (
NODE_API_EXPERIMENTAL_HAS_<FEATURE>
) for distinguishing experimental feature existence. - Must be considered for backporting.
- Exit criteria from experimental status include:
- Opening a PR in
nodejs/node
to remove experimental status, tagged as node-api and semver-minor. - Approval by the Node-API team.
- Availability of a down-level implementation if backporting is needed.
- Usage by a published real-world module.
- Implementation in an alternative VM.
- Opening a PR in