httpmetrics
v1.0.0
Published
HTTP monkey-patching to insert metrics to each http call
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httpmetrics
Nodejs module that reports metrics, both for request and response, to outgoing HTTP/HTTPS connections made from the app. The module hooks into the HTTP methods of node to compute metrics. Upon completing outgoing request, module emits 'httpmetrics' event with 'request' as metric type. Upon receiving a response back on the socket, module emits 'httpmetrics' event with 'response' as metric type.
* Metrics added
* IncomingMessage: {
ymetrics: {
headerSize:
firstChunkSize:
bodySize:
statusCode:
totalTransferTime:
host:
}
}
* OutgoingMessage: {
ymetrics: {
headerSize:
firstChunkSize:
bodySize:
connectTime:
totalTransferTime:
firstChunkTransferTime:
host:
}
}
This package is tested only with Node versions 8 and 10.
install
With npm do:
npm install httpmetrics
usage
var httpmetrics = require('httpmetrics');
//Start collecting metrics
httpmetrics.appendHttpMetrics();
httpmetrics.on('httpmetrics', function(metricType, metrics) {
//metricType = request / response
//metrics = corresponding metrics
});
example
Please refer to the examples/httpmetrics-app.js for details