How to run a npm run script programatically

[msinha]

I have defined a script in my package.json "start" which starts node server.
I am trying to run execute command "npm run start" in in my code for example:
exec("npm run start", (error, stdout, stderr) => {
if (error) {
console.log(error: ${error.message});
return;
}
if (stderr) {
console.log(stderr: ${stderr});
return;
}
console.log(stdout: ${stdout});
});

But I want to run another script once "npm run start" is executed, example:
exec("npm run start", (error, stdout, stderr) => {
if (error) {
console.log(error: ${error.message});
return;
}
if (stderr) {
console.log(stderr: ${stderr});
return;
}
console.log(stdout: ${stdout});

exec("npm run anotherScript", (error, stdout, stderr) => {
if (error) {
console.log(error: ${error.message});
return;
}
if (stderr) {
console.log(stderr: ${stderr});
return;
}
console.log(stdout: ${stdout});
});
});

The issue is it never runs "npm run anotherScript" because promise is still in pending state when I execute "npm run start".

Can someone please help me to resolve this issue. What could be the best way to run it.

[PitaJ]

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