Example Usage

Here is a sample python application using staash that queries a table test-table in database test-db to check if the id columns are in sequence of arithmetic progression with a difference of +1, up to the size specified in the command-line parameters, for the application id specified in the appid.
The 1 time steps are to register the database and the tables, once that is done any app developer needing to access that data can access it with a uniform endpoint as described below compared to doing it via a different client library for different data stores. This makes the life of app developers a lot easier.

Instructions to run this app:

python check.py -h

check.py -a [appId] -n [expectedrange]

1. Code Sample

`python check.py -a applicationId -n size`

#!/usr/bin/python

import sys, getopt
import urllib
import json
import numpy as np`

BASE_PATH = "http://hostname:port/staash/v1/"
DB_NAME = "testdb"
TABLE_NAME = "testtable"
FILTER1 = "applicationname"


def healthcheck(appid,esize):
  response = urllib.urlopen(BASE_PATH+"data/"+DB_NAME+"/"+TABLE_NAME+"/"+FILTER1+"/"+appid)
  json_data = response.read()
  data = json.loads(json_data)
  listid = []

  for x in range(1,int(esize)+1):
    listid.append(int(data[""+repr(x)]["Id"]))

  sortedids = sorted(listid)
  dx = np.diff(sortedids)
  f = np.all(dx == 1)
  if not f:
    print 'appid is "', appid
    print 'size is "', esize
    print "**************************************************"
    print "Order Check FAILED FOR "+FILTER1+"="+appid
    print "**************************************************"
    print f
    print sortedids
    print dx
  else:
    print "**************************************************"
    print "Order Check SUCCEEDED FOR "+FILTER1+"="+appid
    print "**************************************************"

def main(argv):
  appid = ''
  esize = ''
  try:
      opts, args = getopt.getopt(argv,"ha:n:",["appid=","number="])
  except getopt.GetoptError:
      print 'check2.py -a <appId>  -n <expectedrange>'
      sys.exit(2)
  for opt, arg in opts:
      if opt == '-h':
         print 'check2.py -a <appId> -l <location> -n <expectedrange>'
         sys.exit()
      elif opt in ("-a", "--appid"):
         appid = arg
      elif opt in ("-n", "--size"):
         esize = arg
  healthcheck(appid, esize)

if __name__ == "__main__":
   main(sys.argv[1:])