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| === Statistics Export === | | === Statistics Export === |
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| The Statistics Export allows querying the API of the Allegro Network Multimeter and transmit JSON results to a remote server via HTTP POST requests. The API path can be determined by using a debug console of the browser on any of the modules of the Allegro Network Multimeter.
| | See [[Statistics Export via POST]] for details about exporting the measurement data via HTTP POST requests. |
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| Example:
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| * Interval: '''60'''
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| * Internal URL Path: '''/API/stats/interfaces'''
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| * External POST target: '''http://10.0.0.1:3000/interface-stats-for-mm-1234'''
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| This will generate a '''POST /interface-stats-for-mm-1234''' request to '''10.0.0.1''' every minute and send the interface statistics of the multimeter.
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| ==== Sample Node.js server ====
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| The following script is a basic '''Node.js''' server (with minimal error handling) which reads all POST requests and stores them to a file:
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| const http = require('http');
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| const fs = require('fs');
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| const listenAddress = '0.0.0.0';
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| const port = 3000;
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| let fileCount = 1;
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| const server = http.createServer((req, res) => {
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| if (req.method != 'POST') {
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| res.statusCode = 405;
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| res.end();
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| return;
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| }
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| let id = fileCount++;
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| let outputFilename = `${req.url.substring(1).replace(/\//g, '_')}_${id}.json`;
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| console.log(`${id}: ${req.method} ${req.url} => ${outputFilename}`);
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| let data = [];
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| req.on('data', chunk => data.push(chunk));
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| req.on('end', () => {
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| fs.writeFile(outputFilename, data, (err) => {
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| if (err != null) {
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| console.log(err);
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| res.statusCode = 500;
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| } else {
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| res.statusCode = 200;
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| }
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| res.end();
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| });
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| });
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| });
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| server.listen(port, listenAddress, () => {
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| console.log(`Server running at http://${listenAddress}:${port}/`);
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| });
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| === SSH port forwarding === | | === SSH port forwarding === |