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ra/two cases — two minutes old, and not there

Created July 8, 2013 18:07
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The Citi Bike JSON endpoint can be late or disappear altogether. Generally it's about 60 or 120 seconds late. (That's assuming you're sampling on the minute too.) That is, its executionTime is that much behind the actual time. Sometimes this increases.
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two cases — two minutes old, and not there
$ for i in {1..10}; do sleep 4; date; curl -s http://citibikenyc.com/stations/json | tr "},{" " \n" | head -2 | tail -1; done
Mon Jul 8 17:38:20 UTC 2013
"executionTime":"2013-07-08 01:36:01 PM" "stationBeanList":[
Mon Jul 8 17:38:24 UTC 2013
"executionTime":"2013-07-08 01:36:01 PM" "stationBeanList":[
Mon Jul 8 17:38:28 UTC 2013
"executionTime":"2013-07-08 01:38:01 PM" "stationBeanList":[
Mon Jul 8 17:38:33 UTC 2013
"executionTime":"2013-07-08 01:38:01 PM" "stationBeanList":[
Mon Jul 8 17:38:37 UTC 2013
"executionTime":"2013-07-08 01:38:01 PM" "stationBeanList":[
Mon Jul 8 17:38:41 UTC 2013
"executionTime":"2013-07-08 01:38:01 PM" "stationBeanList":[
Mon Jul 8 17:38:45 UTC 2013
"executionTime":"2013-07-08 01:38:01 PM" "stationBeanList":[
^C
$
$ for i in {1..10}; do sleep 4; date; curl -s http://citibikenyc.com/stations/json | tr "},{" " \n" | head -2 | tail -1; done
Mon Jul 8 17:51:33 UTC 2013
Mon Jul 8 17:51:37 UTC 2013
Mon Jul 8 17:51:41 UTC 2013
Mon Jul 8 17:51:45 UTC 2013
Mon Jul 8 17:51:50 UTC 2013
Mon Jul 8 17:51:54 UTC 2013
Mon Jul 8 17:51:58 UTC 2013
Mon Jul 8 17:52:02 UTC 2013
Mon Jul 8 17:52:07 UTC 2013
Mon Jul 8 17:52:11 UTC 2013
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