node-addon-api is the C++ wrapper for N-API, the ABI stable library to build addons for Node.js.
Questions tagged [node-addon-api]
126 questions
2
votes
0 answers
node-addon-api pass object of another class as callback function argument
How do I pass an object of another class as a parameter of a callback function in node-addon-api?
Code Snippet:
#include
#include "Third_Party_Library.h"
using namespace Napi;
class WorkerInit : public AsyncWorker {
public:
…
Ganesh Rathinavel
- 1,243
- 4
- 17
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1
vote
0 answers
Do NodeJS addons use the Heap?
After reading this post about the heap, I'm left wondering: do the operations performed in a Node addon context consume that same heap memory?
glimmbo
- 143
- 10
1
vote
0 answers
I can't connect to web socket server in electron app
I am working on electron project which includes node addon module.
In native module, I am using ixWebSocket library to communicate with third party api.
After initializing websocket properties, I call start() function to run background thread.
Code…
Super Coder
- 21
- 2
1
vote
0 answers
Node-gyp build fails. Unable to figure out what is causing the issue
Iam trying to install the jsonski package, but Iam encountering issues with node-gyp while doing so. I am able to run the node-gyp configure command without issues as seen below,
ubuntu@Ubuntu-22:~/JSON/JSONSki$ node-gyp configure
gyp info it worked…
Alan Zink
- 11
- 1
1
vote
1 answer
How do I call a JS callbacks from C++ with node-addon-api?
I need a way to invoke JS callbacks from a C library that uses contexts.
Here's an example:
const ctx1 = mylib_init();
mylib_set_event_callback(ctx1, () => {
console.log("EVENT");
});
Napi::FunctionReference cb;
bool done = false; // Used to…
Alex Shaw
- 163
- 1
- 7
1
vote
0 answers
An Electron RTSP player: How to play the video stream?
What seemed to be an easy job turned out otherwise. I wanted to write an Electron app to manage DVR streams as I wasn't satisfied with some apps I used. I choose Electron because I recently started JS and took the opportunity to practice it and also…
Siavoshkc
- 346
- 2
- 16
1
vote
0 answers
Node addon "Check failed: IsEmpty()"
I have a Node addon related to a failure, when I destroy an object. I have no idea which object is causing that. Here is some features I am using.
I have a project where I create a few objects using Napi::ObjectWrap, some asynchronous functions that…
Bob
- 13,867
- 1
- 5
- 27
1
vote
1 answer
How do you avoid full compilation with gyp?
I'm getting started with the `node-addon-api' and while my code does compile and run, I do get the following warning:
Generating code
Previous IPDB not found, fall back to full compilation.
All 303 functions were compiled because no usable…
Markstar
- 639
- 9
- 24
1
vote
0 answers
How to instantiate and return a wrapped C++ object from AsyncWorker
I'm following the Node Addon API documentation to resolve a promise on the C++ side. On resolve I'd like to return a C++ object back to JS. My code is similar to what is here. The main difference is that I'd like to return an instance of the object…
Ali
- 1,001
- 2
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1
vote
1 answer
Node addon crashes in Electron but works fine in vanilla Node
I am building a Node addon on macOS to communicate with Apple's Photos framework, it will query photos from the Photos library and export them to a folder.
The addon works well in vanilla Node (v16.14.0), but it crashes in Electron. I am using…
Hao Xi
- 351
- 4
- 12
1
vote
1 answer
Electron Node addon with AsyncWorker hang on `dispatch_group_wait` on macOS
I am creating a Node addon to export a video file from macOS Photos library, as it takes a few seconds, I wrapped the code into an AsyncWorker.
The C++ / Objective-C code:
class Napi_PhotosExport_AsyncWorker : public Napi::AsyncWorker
{
void…
Hao Xi
- 351
- 4
- 12
1
vote
1 answer
How to iterate JavaScript array using Node-API
I'm building a Node.js addon using Node-API.
Basically, my algorithm takes a js array as the input and then process it inside the addon and return it.
To do any logic for the array I need to loop through it. But I don't know-how. Because I didn't…
0xdw
- 3,755
- 2
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1
vote
1 answer
Can nw addon be built with _HAS_ITERATOR_DEBUGGING=1 for debug mode? (Windows)
Original questin: Is there any way to get what macros nw-gyp add to the build project by default?
I'm developing a nw addon and I've tried to link a custom static lib to .node DLL. However I found nw-gyp will add _HAS_ITERATOR_DEBUGGING=0 by default…
Jian Wang
- 41
- 4
1
vote
2 answers
NodeJS module compilation
I have a node add on module using node-addon-api interface.
{
"targets": [
{
"target_name": "mod",
"sources": [
"./src/index.cpp",
...
],
"include_dirs": [
...,
"
Bob
- 13,867
- 1
- 5
- 27
1
vote
1 answer
Node addon don't work in electron, but worked in nodejs
I wrote a nodejs addon, compiled with node-gyp.
It won't work on electron, but nodejs worked.
The nodejs and electron node has the same version.
The addon do these things:
Load ffmpeg static library and open a rtsp or local file.
Convert the frame…
Yohanan
- 13
- 2