Stop running processes after a Promise is rejected

Question

I\'m using the following code which working OK, but the problem is that when I get an error, I want it to stops all the other promises. For example if chi.getCommand(val1,

Answer 1

Well, in your actual code (the one from UPDATE1) you are running getCommand concurrently to getStatus, not in sequence. You're calling (starting) both of them before the child process fails, and when it does there is nothing that would stop getStatus.

Just chain them together like in your first snippet, where a rejection in getCommand will cause getStatus to not run at all. You can use

childP.getCommand('spawn', cmd)
.timeout(5000)
.then(function(cmdresult) {
    return app.getStatus(51000, 10, 1);
}).catch(function (err) {
    console.log("An error occured: " + err);
});