Quickstart¶
Dive in! …to get started using the webexpythonsdk package:
Make sure that you have:
A Webex Account (a free account works fine, sign-up for one here )
webexpythonsdk installed
webexpythonsdk upgraded to the latest version
Get your Webex Access Token¶
To interact with the Webex APIs, you must have a Webex Access Token. A Webex Access Token is how the Webex APIs validate access and identify the requesting user.
To get your personal access token:
Login to developer.webex.com
Click on Docs or browse to the Getting Started page
You will find your personal access token in the Authentication section
![../_images/personal_access_token.png](../_images/personal_access_token.png)
Note:
“Your personal access token is great for testing the API with your account but it should never be used in applications.”
Use your Webex Access Token¶
As a best practice, you can store your Webex access token ‘credential’ as
an environment variable in your development or production environment. By
default, webexpythonsdk will look for a WEBEX_ACCESS_TOKEN
environment
variable when creating new connection objects.
There are many places and diverse ways that you can set an environment variable, which can include:
A setting within your development IDE
A setting in your container / PaaS service
A statement in a shell script that configures and launches your app
It can be as simple as setting it in your CLI before running your script…
$ export WEBEX_ACCESS_TOKEN=your_access_token_here
$ python myscript.py
…or putting your credentials in a shell script that you source
when your
shell starts up or before your run a script:
$ cat mycredentials.sh
export WEBEX_ACCESS_TOKEN=your_access_token_here
$ source mycredentials.sh
$ python myscript.py
However you choose to set it, if you have your access token stored in a
WEBEX_ACCESS_TOKEN
environment variable when using webexpythonsdk, you are
good to go. webexpythonsdk will pull and use this access token, by default,
when creating new WebexAPI
objects.
If you don’t want to set your access token as an environment variable, or perhaps your application will acquire access tokens via some other means, you can manually provide your access token when creating a WebexAPI object.
Create a WebexAPI “Connection Object”¶
To make interacting with the Webex APIs as simple and intuitive as
possible, all of the APIs have ‘wrapped’ underneath a single interface. To get
started, import the WebexAPI
class and create an API “connection
object”.
>>> from webexpythonsdk import WebexAPI
>>> api = WebexAPI()
As discussed above (Use your Webex Access Token), webexpythonsdk defaults
to pulling your Webex access token from a WEBEX_ACCESS_TOKEN
environment
variable. If you do not have this environment variable set and you try to
create a new WebexAPI
object without providing a Webex access
token, a webexpythonsdkException
will be raised.
>>> from webexpythonsdk import WebexAPI
>>> api = WebexAPI()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "webexpythonsdk/__init__.py", line 114, in __init__
raise webexpythonsdkException(error_message)
webexpythonsdkException: You must provide an Webex access token to interact
with the Webex APIs, either via a WEBEX_ACCESS_TOKEN environment
variable or via the access_token argument.
Use the access_token
argument to manually provide your access token, when
creating a new WebexAPI
connection object.
>>> from webexpythonsdk import WebexAPI
>>> api = WebexAPI(access_token='lkj345w...')
Note that this can be very useful if you are reading in access token(s) from a file or database and/or when you want to create more than one connection object.
>>> from webexpythonsdk import WebexAPI
>>> chris_at = 'lkj345w...'
>>> veronica_at = 'kl45kln...'
>>> chris_api = WebexAPI(access_token=chris_at)
>>> veronica_api = WebexAPI(access_token=veronica_at)
If you authenticate a user via a OAuth flow you can also initialize a api object directly by providing the OAuth information.
>>> from webexpythonsdk import WebexAPI
>>> client_id = "<from oauth>"
>>> client_secret = "<from oauth>"
>>> oauth_code = "<from oauth>"
>>> redirect_uri = "<from oauth>"
>>> api = WebexAPI(client_id=client_id,
client_secret=client_secret,
oauth_code=oauth_code,
redirect_uri=redirect_uri
)
You can also pass a proxy configuration upon initialization in case you are behind a firewall. See the requests documentation on Proxies for details.
>>> from webexpythonsdk import WebexAPI
>>> proxy = {'https': 'http://<proxy_ip>:<proxy_port>'}
>>> api = WebexAPI(access_token=<your_access_token>, proxies=proxy)
Making API Calls¶
Now that you have created a WebexAPI
“connection object,” you are
ready to start making API calls.
>>> api.people.me()
Person({"displayName": "Chris Lunsford", "firstName": "Chris", "created": "2012-06-15T20:36:48.914Z", "lastName": "Lunsford", "emails": ["cm@lunsford.io"], "avatar": "https://1efa7a94ed216783e352-c62266528714497a17239ececf39e9e2.ssl.cf1.rackcdn.com/V1~ba1ecf557a7e0b7cc3081998df965aad~7-HrvYOJSQ6eJgWJuFVbzg==~1600", "id": "Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk"})
It really is that easy.
All of the calls have been wrapped and represented as native Python method
calls, like WebexAPI.people.me()
which gets the person details
for the authenticated user (the user who’s access token you are using) - see
the https://api.ciscospark.com/v1/people/me API endpoint
documentation.
As you can see, we have represented the API endpoints using simple terms
that are aligned with the API docs; for example, representing the people/me
API endpoint as a people.me()
method available underneath the
WebexAPI
connection object.
A full list of the available API methods, with their descriptions and parameters, is available in the User API Doc, and a brief summary of the structure is provided here.
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You can easily access and call any of these methods directly from your
WebexAPI
connection object:
>>> chris_id = "Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk"
>>> api.people.get(personId=chris_id)
Person({"displayName": "Chris Lunsford", "firstName": "Chris", "created": "2012-06-15T20:36:48.914Z", "lastName": "Lunsford", "emails": ["cm@lunsford.io"], "avatar": "https://1efa7a94ed216783e352-c62266528714497a17239ececf39e9e2.ssl.cf1.rackcdn.com/V1~ba1ecf557a7e0b7cc3081998df965aad~7-HrvYOJSQ6eJgWJuFVbzg==~1600", "id": "Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk"})
Catching Exceptions¶
If something should go wrong with the API call, an exception will be raised.
ApiError
exceptions are raised when an error condition is
returned from the Webex cloud. Details will be provided in the error
message.
>>> from webexpythonsdk import WebexAPI, ApiError
>>> api = WebexAPI()
>>> room = api.rooms.create("webexpythonsdk Test Room")
>>> me = api.people.me()
>>> api.memberships.create(roomId=room.id, personId=me.id)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "webexpythonsdk/api/memberships.py", line 212, in create
json_obj = self._session.post('memberships', json=post_data)
File "webexpythonsdk/restsession.py", line 187, in post
check_response_code(response, erc)
File "webexpythonsdk/utils.py", line 104, in check_response_code
response=response)
webexpythonsdk.exceptions.ApiError: Response Code [409] - The request
could not be processed because it conflicts with some established rule of
the system. For example, a person may not be added to a room more than
once.
You can catch any errors returned by the Webex cloud by catching
ApiError
exceptions in a try-except block.
>>> try:
... api.memberships.create(roomId=room.id, personId=me.id)
... except ApiError as e:
... memberships = api.memberships.list(roomId=room.id)
... for membership in memberships:
... if membership.personId == me.id:
... print("Doh! I forgot that I am automatically added to a"
... "room when I create it.")
... break
... else:
... print(e)
...
Doh! I forgot that I am automatically added to a room when I create it.
>>>
webexpythonsdk will also raise a number of other standard errors
(TypeError
, ValueError
, etc.); however, these errors are usually
caused by incorrect use of the package or methods and should be sorted while
debugging your app.
Working with Returned Objects¶
The Webex cloud returns data objects in JSON format, like so:
{
"displayName": "Chris Lunsford",
"firstName": "Chris",
"created": "2012-06-15T20:36:48.914Z",
"lastName": "Lunsford",
"emails": [
"cm@lunsford.io"
],
"avatar": "https://1efa7a94ed216783e352-c62266528714497a17239ececf39e9e2.ssl.cf1.rackcdn.com/V1~ba1ecf557a7e0b7cc3081998df965aad~7-HrvYOJSQ6eJgWJuFVbzg==~1600",
"id": "Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk"
}
Sure, JSON data objects can easily be parsed and represented in Python using dictionaries, but when working with an ‘object’ wouldn’t it be nice to be able to work with it like an object - using native object syntax (like accessing attributes using ‘.’ notation)? webexpythonsdk enables you to do just that:
>>> me = api.people.me()
>>> me.id
u'Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk'
>>> me.displayName
u'Chris Lunsford'
Representing and treating Webex data objects as Python data objects, can really help clean up your code and make coding easier:
You don’t need to create variables to hold the data attributes, just use the attributes available underneath the data object.
>>> # Do this >>> api.people.get(personId=me.id) Person({"displayName": "Chris Lunsford", "firstName": "Chris", "created": "2012-06-15T20:36:48.914Z", "lastName": "Lunsford", "emails": ["cm@lunsford.io"], "avatar": "https://1efa7a94ed216783e352-c62266528714497a17239ececf39e9e2.ssl.cf1.rackcdn.com/V1~ba1ecf557a7e0b7cc3081998df965aad~7-HrvYOJSQ6eJgWJuFVbzg==~1600", "id": "Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk"}) >>> # Instead of this >>> my_id = me.id >>> api.people.get(personId=my_id) Person({"displayName": "Chris Lunsford", "firstName": "Chris", "created": "2012-06-15T20:36:48.914Z", "lastName": "Lunsford", "emails": ["cm@lunsford.io"], "avatar": "https://1efa7a94ed216783e352-c62266528714497a17239ececf39e9e2.ssl.cf1.rackcdn.com/V1~ba1ecf557a7e0b7cc3081998df965aad~7-HrvYOJSQ6eJgWJuFVbzg==~1600", "id": "Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk"})If your IDE supports auto-completion (like PyCharm for example), then you can easily see and ‘tab-out’ available attributes while coding.
For Example: When working with a
Person
object, your can type the object name followed by a dot ‘me.
’ and see a list of available attributes. Typing a few more letters ‘me.dis
’ narrows down the attribute list to ‘displayName
’, and you can now simply hit ‘<tab>
’ to complete your attribute ‘me.displayName
’.This speeds up coding and reduces typo coding errors.
When accessing ‘optional’ attributes, like the
teamId
attribute of a Webex Room object (only present when the room is part of a Webex Team), thewebexpythonsdk.Room
object will returnNone
when the attribute is not present and will return the attribute’s value when it is present. This avoids some boiler plate code and/or needless exception handling, when working with optional attributes.>>> # Instead of doing this >>> if hasattr(room, 'teamId'): ... # Do something with the teamId attribute ... pass >>> # Or this >>> try: ... # Do something with the teamId attribute ... room.teamId ... except AttributeError as e: ... pass >>> # You can do this, which is cleaner >>> if room.teamId: ... # Do something with the teamId attribute ... passIt just feels more natural. :-) When iterating through sequences, and working with objects in those sequences (see the next section), working with objects as objects is definitely more Pythonic.
- The Zen of Python (PEP 20):
“Beautiful is better than ugly.” “Simple is better than complex.”
A full list of the currently modeled Webex Data Objects, with their attributes, is available here in the User API Doc.
What if Webex adds new data attributes?
Attribute access WILL WORK for the newly added attributes (yes, without a package update!), but tab-completion WILL NOT. webexpythonsdk is written to automatically take advantage of new attributes and data as they are returned; however, tab-completion (which relies on source code and introspection) will not work until we update the webexpythonsdk package (which is easy to do; raise the issue on the issues page and bug us to add it).
Working with Returned ‘Lists’ of Objects¶
Challenge
When you ask Webex for a list of items (like all of the rooms that you are a member of or all of the messages in a room), Webex needs to return these items to you in an efficient way. Sending all of the messages in a room in one transaction or request isn’t really feasible (imaging if the room had existed for years!). Additionally, what if you found what you were looking for in the first few (most recent) messages? Sending all of the items would have been a waste of time and resources.
To facilitate efficient transactions when requesting lists of items, the Webex APIs implement RFC5988 (Web Linking) to efficiently send ‘pages’ of responses (see Pagination on the Webex for Developers site). When you make a request to an Webex API that leverages pagination, Webex returns the first ‘page’ of results and a link to the ‘next page’ of results. If information you need isn’t contained the first page, you can request the next and so forth.
Solution
Python has a similar construct as well - iterable objects. Iterable objects return their members one at a time, until they have all been returned.
webexpythonsdk marries these two concepts (pagination and iterables) to create a simple interface for working with sequences of returned objects.
>>> # Returns a iterable object yielding all of the rooms you are a member of
>>> rooms = api.rooms.list()
>>> # Which can easily be iterated to find what you are looking for
>>> for room in rooms:
... if 'webexpythonsdk' in room.title:
... demo_room = room
... break
>>> demo_room
Room({"title": "webexpythonsdk Test Room", "created": "2016-11-12T03:24:39.278Z", "isLocked": false, "lastActivity": "2016-11-12T03:24:39.308Z", "creatorId": "Y2lzY29zcGFyazovL3VzL1BFT1BMRS9mZjhlZTZmYi1hZmVmLTRhNGQtOTJiMS1kNmIyMTZiNTg5NDk", "type": "group", "id": "Y2lzY29zcGFyazovL3VzL1JPT00vOGI1MTIwZTAtYTg4Ny0xMWU2LWFhZjUtZTlmYWEzMWQ1ZmRm"})
webexpythonsdk provides this functionality by returning
GeneratorContainer
objects for API calls that return lists of items.
In short, GeneratorContainer
s are iterable objects that incrementally
yield ‘the next object’ returned from your Webex API query request until all
items have been returned, and they are reusable. If you create an rooms
GeneratorContainer
, like we did above with
rooms = api.rooms.list()
, you can use that object to iterate through the
rooms not just once but many times.
Note: Every time you iterate a GeneratorContainer
object, fresh
API calls are made so you are always working with ‘live data’ from the Cisco
Webex Cloud.
webexpythonsdk automatically handles the pagination for you so that you don’t have to think about it or write the boiler plate code to handle requesting pages of responses. webexpythonsdk automatically and efficiently requests additional pages from Webex as needed to yield the items you have requested.
A GeneratorContainer
records all of the parameters of your API call,
and uses them to request data from Webex each time you iterate the container.
>>> # Returns a iterable object representing all of group rooms you are a member of
>>> group_rooms = api.rooms.list(type='group')
>>> # Returns a iterable object representing all of direct rooms you are a member of
>>> direct_rooms = api.rooms.list(type='direct')
>>> # Iterate through your group rooms
>>> for room in group_rooms:
... pass
>>> # Iterate through your direct rooms
>>> for room in direct_rooms:
... pass
>>> # You can iterate through your group rooms again;
>>> # if a new room has been created since the last time, it will show up.
>>> for room in group_rooms:
... pass
These iterable objects are great, but what if I really DO want a list?
Sometimes you really DO want a list
of items. Perhaps you want to work
with the same static list
of items to ensure you are looking at ‘all of the
items’ and to make sure that your list doesn’t change while you are working
with it…
Whatever your reason for doing so, you can easily ‘convert’ an iterable
object to a standard Python list
with the list()
function. This may
take a little time for all of the API calls to be made, but the list will
contain all of the returned objects.
>>> rooms_iterable = api.rooms.list()
>>> rooms_list = list(rooms_iterable)
Extending the API with bound methods¶
As the Webex API is developed and features are added, it may be necessary to extend the webexpythonsdk to access those features. Extending the API is simple by binding your own methods to the WebexAPI connection object. By binding a method, you can extend functionality and leverage all of the objects and quality of life features of webexpythonsdk.
>>> new_method(self, param):
... json_obj = self._session.get('/example/action/' + param)
... return json_obj
>>> api = WebexAPI()
>>> api.new_method = new_method
>>> output = WebexAPI.new_method(param)
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