egress data

[chris....@gmail.com]

I've been asked to get a value from the prometheus instance we are running.

I want the metric "temp_in_c" for the past year for a number of the machines we are running.  The people that would like the data don't have access to the any of the data in any other way.

Working in python and this is what I'm trying and was wondering if it is correct?

start_date=str(time.mktime(datetime.date(2019,10,1).timetuple()))

end_date  =str(time.mktime(datetime.date(2019,10,2).timetuple()))

step_resolution='5m'  -- This is hardcoded below

response = requests.get('{}/api/v1/query'.format(hostname),params={'query': 'temp_in_c','step':'5m','start':start_date,'end_input':end_date})

print(response)    ## This comes back as 200 which look ok

results = response.json()['data']['result']  ## This gives me [] nothing

There is data for this metric during that time so I figure I'm doing something wrong in my query?

Any ideas?

Thanks

[Brian Candler]

You need /api/v1/query_range not /api/v1/query. See:

https://prometheus.io/docs/prometheus/latest/querying/api/#range-queries

If that doesn't help, you may get more clues from print(response.text)