node-addon-api VS node-addon-examples

It's the official extension mechanism, and therefore has the best support

If we want it fast, Node-API looks like a perfect solution. A library written in C/C++ must be fast. If you prefer to use C++ over C, the node-addon-api can help. This is probably one of the best solutions available, especially since it is officially supported by the Node.js team. It’s super stable once it is built, but it can be painful during development. Errors are often far from easy to understand, so if you are no expert in C, it might kick your ass very easily.

The Node-API Team proudly announces the release of version 7.0.0 of node-addon-api, the C++ wrapper of the ABI-stable C-based Node-API (npm, GitHub).

Node ffi is an unnecessary wrapper around addon api. See https://github.com/nodejs/node-addon-api

Did a little digging, napi is header file in an npm package that's supposed to help you build C++ addons, node_api is node's actual API. https://github.com/nodejs/node-addon-api you might have already been using this. The examples have enough code that it shouldn't be too bad to get started

Looking at the provided examples, we can see that in some examples , assert is used to check the return value of some functions. However, if an assert is reached by tainted values (from the javascript code) during the program execution, it can lead to a crash (DoS). While reviewing some projects, we found several occurrences of reachable asserts in the code logic, so I thought it’s worth mentioning as part of the previous list.

Yeah, that's the only place I found a napi.h file, so I think tutorials using that are assuming the node-addon-api? Anyways checking out examples like this, https://github.com/nodejs/node-addon-examples/blob/7ca7b6d03c1acb72fe292b4be468009534a20ff3/2_function_arguments/node-addon-api/addon.cc, it actually looks pretty easy to use to call C++ functions in node

I am trying to communicate this native addon with the front-end. It consists of a prime number generator, when it is executed it writes to the console, I want it to send them via Sockets to the browser console.