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analytics.js
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analytics.js
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import fs from 'fs';
import path from 'path';
import google from 'googleapis';
import examples from '../../config/examples';
import Promise from 'bluebird';
const GA_ID = 'ga:98310771';
const EXAMPLE_QUERIES = examples.map(q => q.sort().join(','));
const AUTH_PATH = path.resolve(__dirname, '../../config/google.json');
const ENABLED = fs.existsSync(AUTH_PATH);
var jwt, analytics;
function getAnalytics() {
if (!(jwt && analytics) && ENABLED) {
jwt = new google.auth.JWT();
jwt.fromJSON(require(AUTH_PATH));
jwt = Promise.promisifyAll(
jwt.createScoped('https://www.googleapis.com/auth/analytics.readonly')
);
analytics = google.analytics({ version: 'v3', auth: jwt });
Promise.promisifyAll(analytics.data.ga);
Promise.promisifyAll(analytics.data.realtime);
}
return jwt.authorizeAsync().then(() => analytics);
}
function topSearches(params) {
return getAnalytics()
.then(an => {
return an.data.ga.getAsync({
ids: GA_ID,
'start-date': params.days + 'daysAgo',
'end-date': 'today',
'max-results': params.limit,
metrics: 'ga:totalEvents',
dimensions: 'ga:eventAction',
sort: '-ga:totalEvents',
filters: 'ga:eventCategory==hits',
});
})
.spread(data => {
let result = parseResponse(data);
if (!params.examples) {
result = result.filter(
r => EXAMPLE_QUERIES.indexOf(r['ga:eventAction']) === -1
);
}
if (params.summary) {
let summary = { total: 0, words: {} };
result
.sort((a, b) => b['ga:totalEvents'] - a['ga:totalEvents'])
.forEach(r => {
let term = r['ga:eventAction'].toString().toLowerCase();
let count = r['ga:totalEvents'];
summary.words[term] = summary.words[term] || 0;
summary.words[term] += count;
summary.total += count;
});
return { summary: summary };
}
return { searches: result };
});
}
function imageErrors() {
return getAnalytics().then(an => {
return an.data.ga
.getAsync({
ids: GA_ID,
'start-date': '30daysAgo',
'end-date': 'today',
'max-results': 500,
metrics: 'ga:totalEvents',
dimensions: 'ga:eventAction',
sort: '-ga:totalEvents',
filters: 'ga:eventCategory==image-error',
})
.spread(data => {
return { imageErrors: parseResponse(data) };
});
});
}
function sources(opts) {
return getAnalytics().then(an => {
return an.data.ga
.getAsync({
ids: GA_ID,
'start-date': opts.days + 'daysAgo',
'end-date': 'today',
'max-results': 500,
dimensions: 'ga:fullReferrer,ga:source,ga:socialNetwork',
metrics: 'ga:users,ga:sessions,ga:pageviews',
sort: '-ga:users',
})
.spread(data => {
return { sources: parseResponse(data) };
});
});
}
function browsers(opts) {
return getAnalytics().then(an => {
return an.data.ga
.getAsync({
ids: GA_ID,
'start-date': opts.days + 'daysAgo',
'end-date': 'today',
'max-results': 500,
dimensions: 'ga:browser,ga:operatingSystem',
metrics: 'ga:sessions',
sort: '-ga:sessions',
})
.spread(data => {
return { browsers: parseResponse(data) };
});
});
}
function active() {
return getAnalytics().then(an => {
return an.data.realtime
.getAsync({
ids: GA_ID,
dimensions: 'rt:medium,rt:city',
metrics: 'rt:activeUsers',
})
.spread(data => {
return { active: parseResponse(data) };
});
});
}
function parseResponse(data) {
let headers = (data.columnHeaders || []).map(h => h.name);
let result = (data.rows || []).map(row => {
let d = {};
headers.forEach((h, i) => {
let p = row[i];
if (typeof p === 'string' && p.match(/^[\d.]+$/)) {
p = +p;
}
d[h] = p;
});
return d;
});
return result;
}
function checkEnabled(func, ...rest) {
if (ENABLED) {
return func(...rest);
} else {
return Promise.resolve({
error: { message: 'analytics not available' },
});
}
}
export default {
topSearches: checkEnabled.bind(null, topSearches),
imageErrors: checkEnabled.bind(null, imageErrors),
sources: checkEnabled.bind(null, sources),
active: checkEnabled.bind(null, active),
browsers: checkEnabled.bind(null, browsers),
};