How to run compiled executable on Heroku from NodeJS

I am working on a NodeJS app that uses compiled executables to run C++ code. It takes command line arguments and works perfectly locally on Windows. I have read the post How to run an executable on Heroku from node, works locally , however, the problem is that the executable is created using an external C++ library (CGAL), and the C++ source code cannot be compiled on the heroku server without uploading all the dependencies for the library. To be more specific, I get the following error when I deploy to Heroku.

spawnSync /app/public/routes/my_executable.exe EACCES  

NodeJS app runs the executable in the following way,

var exec = require('child_process').execFileSync;  var fun = function(){     console.log("fun() start");     exec(path.join(__dirname, '/my_executable.exe'), [file.originalname], { cwd: __dirname }).toString()}).toString()  };  

I am unsure how to proceed forward with this. Any help would be appreciated.

https://stackoverflow.com/questions/67411292/how-to-run-compiled-executable-on-heroku-from-nodejs May 06, 2021 at 11:06AM