node-netacuity
v0.0.3
Published
Module for calling Digital Element's NetAcuity GeoIP Service
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Readme
node-netacuity
NodeJS client for Digital Element's NetAcuity GeoIP Service, specifically for the Edge database queries. There is also a cache client using the "async-cache" module so simultaneous requests for the same ip only make one physical request. We also include a command-line tool for perfoming lookups.
Installation
To install the package locally:
npm install git+https://github.com/Vibrant-Media/node-netacuity.git
Alterntively you can clone the repo locally and then manually download the dependencies (for dev/testing):
cd /path/to/target/location
git clone https://github.com/Vibrant-Media/node-netacuity.git
cd note-netacuity
npm install
Commandline Tool
A simple command-line tool that lets you both do lookups and test the module. To get the help text showing the options run:
node lookup --help
The result is a JSON-formatted netacuity.EdgeRecord but we add a timeTaken property with the lookup time in milliseconds.
$ node lookup -h acuity01 www.vibrantmedia.com
Result: {"apiVersion":5,"ip":"216.137.63.231","transactionId":"8d9e5a50bdaf45439bd91434c1a564ef","error":"","country":"gbr","region":"lnd","city":"london","connectionSpeed":"broadband","metroCode":826044,"latitude":51.5171,"longitude":-0.089804,"postCode":"ec2n 3","countryCode":826,"regionCode":25447,"cityCode":4782,"continentCode":5,"isoCountryCode":"uk","internalCode":1,"areaCodes":"?","countryConfidence":99,"regionConfidence":85,"cityConfidence":80,"postCodeConfidence":30,"gmtOffset":0,"inDst":"n","timeTaken":125}
You can do bulk lookups passing in a comma-separated list of addresses or a text file with one address per line (blanks are skipped). There is also simplified output showing just the country code.
$ node lookup -h acuity01 -s www.vibrantmedia.com,www.wombat.com
54.240.166.155 uk
52.20.212.120 us
Usage
When instantiating the main NetAcuity object you pass in a config object. This must contain a servers section which tells us which servers you want to pass queries to. If you specify multiple entries then failover will be available in a rather simple round-robin fashion (ie. when several timeouts happen in close proximity).
var netacuity = require('node-netacuity');
var na = new netacuity.NetAcuity({
port: 10000,
appId: 3,
servers: [ { host: "acuity01", port: 5400 }, { host: "acuity02", port: 5400 } ],
});
na.get('31.24.80.156', function(err, edge) {
if (err) {
console.log('Lookup error: %s', err);
else {
console.dir('Result: ', edge); // edge is netacuity.EdgeRecord
}
});
na.close(function(err) {
if (err) {
console.log('Close error: %s', err);
}
});
Alternatively you can use the cache implementation.
var netacuity = require('node-netacuity');
var cache = new netacuity.NetAcuityCache({
port: 10000,
appId: 3,
servers: [ { host: "acuity01", port: 5400 }, { host: "acuity02", port: 5400 } ],
cache: {
max: 1000,
maxAge: 60000
}
});
cache.get('31.24.80.156', function(err, edge) {
if (err) {
console.log('Lookup error: %s', err);
else {
console.dir('Result: ', edge); // edge is netacuity.EdgeRecord
}
});
cache.close(function(err) {
if (err) {
console.log('Close error: %s', err);
}
});
Configuration
Configuration is performed by passing a configuration object to the NetAcuity() constructor. The following describes the various options:
var config = {
port: 20000, // which port we should listen to responses from NetAcuity on
timeout: 50, // number of milliseconds we should wait to get a response to a geo query
servers: [ // an array of netacuity servers we can direct requests to
{ host: "acuity01", port: 5400 }, // each entry must have a host and optionally a port
{ host: "acuity02", port: 5400 } // if no port is specified then 5400 is used
],
appId: 3, // a numeric value 0..127 to group NetAcuity usage reports against
failoverWindow: 100, // a value in milliseconds in which consecutive request timeouts suggest a failover event
failoverThreshold: 3, // this many requests each within a failoverWindow of each other triggers a failover
dns: {
maxAge: 120000, // cache servers.host DNS lookups (milliseconds)
useLookup: true // see https://github.com/Vibrant-Media/node-dnscache
},
cache: {
max: 10000, // for caching, maximum number of entries the cache can hold before less-recently-used items are evicted
maxAge: 600000 // for caching, how long something can remain in cache before being expired (in milliseconds)
}
};
Testing
You'll need to install gulp
npm install -g gulp
And then run the tests
gulp test
License
MIT