I am looking for a good/best-practices example python script the can check for a token for the user, if not valid will request one and then execute a set workspace.
Anyone have anything they are willing to share?
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- 8394 replies
Unless you need to send the token several times per second, I would simply request a new, short-lived token for every request. They're very quick and easy to get.
+4- Contributor
- 11 replies
Unless you need to send the token several times per second, I would simply request a new, short-lived token for every request. They're very quick and easy to get.
Ok, I can get that; still having a hard time getting a good script to work that does it; getting a 403 constantly.
Trying to write something that I can encapsulate in ArcGIS Server
def do_getToken():
"""Call to FME Server to get a token for the GUEST user"""
try:
url = '{0}/fmerest/v3/tokens'.format(SERVER_URL)
tokenParams = {
"restricted": "true",
"name": "guestToken",
"description": "guest token",
"expirationTimeout": 3600,
"user": "fmeadmin",
"type": "SYSTEM",
"enabled": "true"
}
# Request constructor expects bytes, so we need to encode the string
body = json.dumps(tokenParams).encode('utf-8')
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json'
}
# This will use POST, since we are including data
req = urllib.request.Request(url, body, headers)
r = urllib.request.urlopen(req, context=context)
print('Request status: ' + str(r.status))
resp = r.read()
resp = resp.decode('utf-8')
resp = json.loads(resp)
TOKEN = resp
except arcpy.ExecuteError:
print(arcpy.GetMessages(2))
except Exception as e:
print(e.args[0])
# End do_getToken functionBut not a lot of examples for calling FME from python.
- 8394 replies
Ok, I can get that; still having a hard time getting a good script to work that does it; getting a 403 constantly.
Trying to write something that I can encapsulate in ArcGIS Server
def do_getToken():
"""Call to FME Server to get a token for the GUEST user"""
try:
url = '{0}/fmerest/v3/tokens'.format(SERVER_URL)
tokenParams = {
"restricted": "true",
"name": "guestToken",
"description": "guest token",
"expirationTimeout": 3600,
"user": "fmeadmin",
"type": "SYSTEM",
"enabled": "true"
}
# Request constructor expects bytes, so we need to encode the string
body = json.dumps(tokenParams).encode('utf-8')
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json'
}
# This will use POST, since we are including data
req = urllib.request.Request(url, body, headers)
r = urllib.request.urlopen(req, context=context)
print('Request status: ' + str(r.status))
resp = r.read()
resp = resp.decode('utf-8')
resp = json.loads(resp)
TOKEN = resp
except arcpy.ExecuteError:
print(arcpy.GetMessages(2))
except Exception as e:
print(e.args[0])
# End do_getToken functionBut not a lot of examples for calling FME from python.
I would recommend using the requests library rather than urllib, it is so much easier to work with. I suspect that requests is even installed with some ArcGIS Python interpreters by default. Here's some code that requests a token from FME Server, using the requests module:
def get_token(self):
"""
Requests a token from FME Server using the username/password
:return: Security token
"""
url = '%s/fmetoken/service/generate' % (self.base_url)
payload = {
'user': self.username,
'password': self.password,
'expiration': str(self.token_ttl_secs),
'timeframe': 'second'
}
response = requests.post(url, data=payload)
response.raise_for_status()
self.token = response.text
return self.tokenGranted, it uses the "old" token API, but it should be easy to adapt.
I hope the instance variables are self-explanatory, if not, let me know.
+4- Contributor
- 11 replies
Ok, I can get that; still having a hard time getting a good script to work that does it; getting a 403 constantly.
Trying to write something that I can encapsulate in ArcGIS Server
def do_getToken():
"""Call to FME Server to get a token for the GUEST user"""
try:
url = '{0}/fmerest/v3/tokens'.format(SERVER_URL)
tokenParams = {
"restricted": "true",
"name": "guestToken",
"description": "guest token",
"expirationTimeout": 3600,
"user": "fmeadmin",
"type": "SYSTEM",
"enabled": "true"
}
# Request constructor expects bytes, so we need to encode the string
body = json.dumps(tokenParams).encode('utf-8')
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json'
}
# This will use POST, since we are including data
req = urllib.request.Request(url, body, headers)
r = urllib.request.urlopen(req, context=context)
print('Request status: ' + str(r.status))
resp = r.read()
resp = resp.decode('utf-8')
resp = json.loads(resp)
TOKEN = resp
except arcpy.ExecuteError:
print(arcpy.GetMessages(2))
except Exception as e:
print(e.args[0])
# End do_getToken functionBut not a lot of examples for calling FME from python.
Awesome; and this gave me enough of a jumpstart to fix the rest of my class to get my job execution method in place.
Thank you so much!