napi get buffer info

napi_status napi_get_buffer_info(napi_env env,
                                 napi_value value,
                                 void** data,
                                 size_t* length)

• [in] env: The environment that the API is invoked under.
• [in] value: napi_value representing the node::Buffer being queried.
• [out] data: The underlying data buffer of the node::Buffer. If length is 0, this may be NULL or any other pointer value.
• [out] length: Length in bytes of the underlying data buffer.

Returns napi_ok if the API succeeded.

This API is used to retrieve the underlying data buffer of a node::Buffer and it’s length.

Warning: Use caution while using this API since the underlying data buffer’s lifetime is not guaranteed if it’s managed by the VM.