napi is missing method to create buffer from `ArrayBuffer`

[ronag]

What is the problem this feature will solve?

Not possible to create Buffer from ArrayBuffer with napi

What is the feature you are proposing to solve the problem?

Add signature similar to what we have for typed arrays:

napi_status napi_create_typedarray(napi_env env,
                                   napi_typedarray_type type,
                                   size_t length,
                                   napi_value arraybuffer,
                                   size_t byte_offset,
                                   napi_value* result) 

napi_status napi_create_buffer(napi_env env,
                               size_t length,
                               napi_value arraybuffer,
                               size_t byte_offset,
                               napi_value* result) 

What alternatives have you considered?

No response

[shubhamsugara22]

Would like to work on it , and discuss more on it
I think his feature would bring the API in line with the existing napi_create_typedarray function
@ronag @redyetidev

[shubhamsugara22]

We already have a functionin in src/node_api.cc , should we update this function or create new one with different name
@ronag @redyetidev
like to discuss on these 2 also , like reference and structure if already done for any other module
// Get the underlying ArrayBuffer data
// Create a Buffer from the ArrayBuffer

napi_status NAPI_CDECL napi_create_buffer(napi_env env,
                                          size_t length,
                                          void** data,
                                          napi_value* result) {
  NAPI_PREAMBLE(env);

[ronag]

napi_create_buffer_from_array_buffer or something?

[shubhamsugara22]

Though the same name regarding the other 2 points have any idea ?

[gabrielschulhof]

Please use

napi_status node_api_create*

That is, the prefix should not be napi_ for new APIs, but node_api_.