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bhapi.py
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bhapi.py
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from bhlogger import BHLogger
import config
import urllib
import urllib2
import urlparse
import json
import math
import copy
def json_loads(s):
try:
return json.loads(s)
except ValueError:
print "Error: Invalid data."
exit()
def json_dumps(obj):
try:
return json.dumps(obj)
except ValueError:
print "Error: Invalid data."
exit()
class BHApi:
base_rest_url = None
bhrest_token = None
access_token = None
refresh_token = None
def __init__(self):
self.logger = BHLogger()
def get(self,url,jsonEncode=True):
req = urllib2.Request(url)
try:
response = urllib2.urlopen(req)
except urllib2.HTTPError as e:
try:
data = json.loads(e.read())
if 'errorMessage' in data:
return data
else:
self.logger.log_message_and_quit("HTTP Error (" + str(e.code) + "): " + str(e.reason))
except ValueError:
self.logger.log_message_and_quit("HTTP Error (" + str(e.code) + "): " + str(e.reason))
except urllib2.URLError as e:
self.logger.log_message_and_quit('Network Error: ' + str(e.reason))
return json_loads(response.read()) if jsonEncode else response
def post(self,url,params={},jsonEncode=True):
req = urllib2.Request(url)
data = ''
if type(params) is not str:
data = urllib.urlencode(params)
else:
data = params
try:
response = urllib2.urlopen(req,data)
except urllib2.HTTPError as e:
try:
data = json.loads(e.read())
if 'errorMessage' in data:
return data
else:
self.logger.log_message_and_quit("HTTP Error (" + str(e.code) + "): " + str(e.reason))
except ValueError:
self.logger.log_message_and_quit("HTTP Error (" + str(e.code) + "): " + str(e.reason))
except urllib2.URLError as e:
self.logger.log_message_and_quit('Network Error: ' + str(e.reason))
return json_loads(response.read()) if jsonEncode else response
def auth(self):
if self.bhrest_token is None:
self.logger.log_message("Authenticating...")
self.logger.log_message("Getting auth code...")
auth_code = self.get_auth_code()
self.logger.log_message("Getting access and refresh tokens...")
access_token = self.set_access_and_refresh_tokens(auth_code)
self.logger.log_message("Getting BHRest token and base URL...")
self.set_session_info()
def refresh(self):
if self.refresh_token is not None:
data = self.post(config.AUTH_BASE_URL+'token?grant_type=refresh_token&refresh_token='+self.refresh_token+'&client_id='+config.CLIENT_ID+'&client_secret='+config.CLIENT_SECRET)
if 'access_token' not in data or 'refresh_token' not in data:
self.logger.log_message_and_quit("API Error: Unexpected data returned for access/refresh tokens")
self.access_token, self.refresh_token = data['access_token'],data['refresh_token']
else:
raise ValueError("No refresh token available. Call auth() before calling refresh()")
def get_auth_code(self):
params = {
'action': 'Login',
'username': config.USERNAME,
'password': config.PASSWORD
}
response = self.post(config.AUTH_BASE_URL+'authorize?client_id='+config.CLIENT_ID+'&response_type=code',params, False)
qs = urlparse.parse_qs(urlparse.urlparse(response.geturl()).query)
if 'code' not in qs or len(qs['code']) == 0:
self.logger.log_message_and_quit("API Error: Unexpected data returned for auth code")
auth_code = urlparse.parse_qs(urlparse.urlparse(response.geturl()).query)['code'][0]
return auth_code
def set_access_and_refresh_tokens(self, auth_code):
data = self.post(config.AUTH_BASE_URL+'token?grant_type=authorization_code&code='+auth_code+'&client_id='+config.CLIENT_ID+'&client_secret='+config.CLIENT_SECRET)
if 'access_token' not in data or 'refresh_token' not in data:
self.logger.log_message_and_quit("API Error: Unexpected data returned for access/refresh tokens")
self.access_token, self.refresh_token = data['access_token'],data['refresh_token']
def set_session_info(self):
data = self.post(config.REST_LOGIN_URL+'?version=*&access_token='+self.access_token)
if 'BhRestToken' not in data:
self.logger.log_message_and_quit("API Error: No BHRest token returned")
self.bhrest_token = data['BhRestToken']
if 'restUrl' not in data:
self.logger.log_message_and_quit("API Error: No base URL returned")
self.base_rest_url = data['restUrl']
def get_api_url(self,command,params = {}):
params['BhRestToken'] = self.bhrest_token
qs = urllib.urlencode(params)
url = self.base_rest_url + command + '?' + qs
return url
def query(self,entity,where,fields='id'):
self.auth()
params = {
'where': where,
'fields': fields,
'count': 50
}
url = self.get_api_url('query/'+entity,params)
print url
page = self.get(url)
ret = page
if 'errorMessage' in ret: return ret
i = 1
while page['count'] == params['count']:
params['start'] = i * params['count']
url = self.get_api_url('query/'+entity,params)
page = self.get(url)
if 'errorMessage' in page: return page
ret['data'] = ret['data'] + page['data']
ret['count'] += page['count']
i += 1
return ret
def search(self, entity, where,fields='id'):
self.auth()
params = {
'query': where,
'fields': fields,
'count': 50
}
url = self.get_api_url('search/'+entity,params)
print url
ret = self.get(url)
if 'errorMessage' in ret: return ret
if ret['total'] > params['count']:
pageCount = math.ceil(ret['total'] / float(params['count']))
for i in xrange(1,int(pageCount)):
params['start'] = i * params['count']
url = self.get_api_url('search/'+entity,params)
page = self.get(url)
if 'errorMessage' in page: return page
ret['data'] = ret['data'] + page['data']
return ret
def get_entity(self,entity, id, fields='*'):
self.auth()
url = self.get_api_url('entity/'+entity+'/'+str(id),{'fields':fields})
response = self.get(url)
return response
def update_entity(self, entity, id, data):
self.auth()
url = self.get_api_url('entity/'+entity+'/'+str(id))
jsdata = json_dumps(data)
response = self.post(url,jsdata)
return response
if __name__=='__main__':
api = BHApi()
api.auth()
data = api.get_entity('Candidate',197,'firstName,lastName')['data']
print data
data['firstName'] = 'Angela'
try:
print api.update_entity('Candidate',197,data)
except urllib2.HTTPError as e:
print e.read()
print api.get_entity('Candidate',197,'firstName,lastName')