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Add tracking of delay to streaming API

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This commit is contained in:
Eugen Rochko 2017-02-05 03:19:04 +01:00
parent 6cdcac1396
commit fb6aa7ad5c
3 changed files with 13 additions and 6 deletions
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16
streaming/index.js
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@ -101,7 +101,15 @@ const streamFrom = (redisClient, id, req, output, needsFiltering = false) => {
log.verbose(`Starting stream from ${id} for ${req.accountId}`)
redisClient.on('message', (channel, message) => {
const { event, payload } = JSON.parse(message)
const { event, payload, queued_at } = JSON.parse(message)
const transmit = () => {
const now = new Date().getTime()
const delta = now - queued_at;
log.silly(`Transmitting for ${req.accountId}: ${event} ${payload} Delay: ${delta}ms`)
output(event, payload)
}
// Only messages that may require filtering are statuses, since notifications
// are already personalized and deletes do not matter
@ -127,13 +135,11 @@ const streamFrom = (redisClient, id, req, output, needsFiltering = false) => {
return
}
log.silly(`Transmitting for ${req.accountId}: ${event} ${payload}`)
output(event, payload)
transmit()
})
})
} else {
log.silly(`Transmitting for ${req.accountId}: ${event} ${payload}`)
output(event, payload)
transmit()
}
})