65 lines
2.3 KiB
JavaScript
65 lines
2.3 KiB
JavaScript
// this is a json fetcher for streams from cosm.com
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// to use, simply start "node cosmfetcher.js <hubAddress> <hubPort>"
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// configuration
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var streams = [ 91755, 70632, 53146, 45582, 64590 ]; // configure which cosm streams to fetch
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var pollingInterval = 1000; // in ms
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var sendAlways = false; // if set to true, fetcher will always send osc messages
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// regardless if value changed
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// end configuration
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var restify = require('restify'), osc = require('node-osc');
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var hubAddress = process.argv.length > 2 ? process.argv[2] : '192.168.23.43';
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var hubPort = process.argv.length > 3 ? process.argv[3] : 7110;
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console.log("using " + hubAddress + ":" + hubPort + " as hub");
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var oscClient = new osc.Client(hubAddress, hubPort);
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var cosmClient = restify.createJsonClient({
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url: 'http://api.cosm.com',
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headers: { 'X-ApiKey':'orKBBdLAKuKJU-RxqmZpZB6q0baSAKxBTVhKdjhUNkdyVT0g' },
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version:'*'
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});
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var recentvalues = {};
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setInterval(function() {
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for(var i=0; i<streams.length; i++) {
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cosmClient.get('/v2/feeds/' + streams[i] + ".json", function(err, req, res, obj) {
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if(err || obj.datastreams == null) return;
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for(var i=0; i<obj.datastreams.length; i++) {
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var dataStream = obj.datastreams[i];
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if(dataStream.id == null) continue;
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var streamName = dataStream.id;
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if(streamName.length < 2 && dataStream.tags != null) {
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streamName = dataStream.tags[0] + streamName;
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}
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var address = '/cosm/' + obj.id + "/" + streamName;
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var currentValue = dataStream.current_value;
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if(isNumber(currentValue)) currentValue = parseFloat(currentValue);
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if(sendAlways || recentvalues[address] != currentValue) {
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oscClient.send(address, currentValue);
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console.log(address + "," + currentValue);
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}
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recentvalues[address] = currentValue;
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}
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});
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}
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}, pollingInterval);
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function isNumber(value) {
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if ((undefined === value) || (null === value)) {
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return false;
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}
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if (typeof value == 'number') {
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return true;
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}
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return !isNaN(value - 0);
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}
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