cluster-callresp
v0.0.1
Published
A call-and-response message passing system for node's cluster builtin
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cluster-callresp
An easy way to set up "call and response" type messages using node's builtin "cluster" module.
// master.js
var callresp = require("cluster-callresp")
callresp(function (call, cb) {
// depending on the content of call,
// do some magic, and then later:
cb(er, response)
})
// calling callresp just adds another listener
callresp(function (call, cb) {
if (call.request == "myThing") {
goGetMyThing(call, cb)
}
// otherwise just do nothing, must have been
// for someone else.
})
Then in the worker:
// worker.js
var callresp = require("cluster-callresp")
// make a call, and then eventually get a response.
// Callback is optional, if you just want to send a message,
// but don't care about the response.
// Set a 'timeout' property to fail if there's no response in
// a specific number of ms. By default, waits forever.
callresp({ request: "myThing", details: "go get it!" }, function (er, resp) {
if (er) return handleError(er)
var results = resp.data
})