Created
December 15, 2017 14:28
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pm2 IPC Minimum needed to send message to process
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/* | |
The online documents were not very clear. | |
http://pm2.keymetrics.io/docs/usage/pm2-api/#send-message-to-process | |
https://stackoverflow.com/a/35504369/3386260 | |
https://github.com/pm2-hive/pm2-hive.github.io/pull/117 | |
*/ | |
// Sender | |
// The sender can run inside or outside of pm2 | |
var pm2 = require('pm2'); | |
var neighborIds = []; | |
pm2.connect(function() { | |
// Find the IDs of who you want to send to | |
pm2.list(function(err, processes) { | |
for (var i in processes) { | |
console.log('Id:', processes[i].pm_id, 'Name:', processes[i].name) | |
if(processes[i].name == 'scout') { | |
neighborIds.push(processes[i].pm_id); | |
} | |
} | |
// Call this once for each neighborIds | |
pm2.sendDataToProcessId(MyNeighborId, { | |
data : { | |
some : 'data', | |
}, | |
topic: 'some topic' | |
}, function(err, res) { | |
console.log(err, res); | |
}); | |
console.log('Ids to send messages to:', neighborIds); | |
}); | |
}); | |
// Receiver | |
// No need to require require('pm2') however the receiver must be running inside of pm2 | |
process.on('message', function(packet) { | |
console.log(packet); | |
}); |
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