ETW APIC-EMNetwork Programmability with Cisco APIC-EM

Web Services - DevNet - Python - Jupyter Notebook

Yvan Rooseleer <yvan@biasc.be> 30 NOV 2018

POSTMAN: HTTP GET HEAD POST PUT DELETE

What is a web service?A web service is a way for two systems to communicate through a defined interface

REST (Representational State Transfer) REST is an architecture style for designing networked applications In REST, HTTP is used to communicate between 2 machines REST web services can send plain text, JSON, and also XML.

REST is a lightweight alternative to RPC, SOAP, Corba, …

Other exampleSOAP (Simple Object Access Protocol)

SOAP and REST can't be compared directly, since the first is a protocol (or at least tries to be) and the second is an architectural style.

POSTMAN: MAPQUEST API - GET REQUEST

POSTMAN: MAPQUEST API - RESPONSE

MAPQUEST Developer APIs

DevNet - Cisco APIC-EM Sandbox API Login

Cisco Application Policy Infrastructure Controller Enterprise Module

APIC-EM Controller - Device Inventory

APIC-EM Controller - Device Inventory(2)

APIC-EM Controller - Path Trace

IDLE Python Programming Environment

ANACONDA NAVIGATOR with Jupyter Notebook

PATH TRACE using PYTHON (1)

PATH TRACE using PYTHON (2)

Coding Practice● Coding is not new to Cisco.

There have always been talented programmers for the IOS and for network applications.● Writing simple code based on examples is easy.● Writing complex code is difficult.● Writing complex declarative CLI scripts is no easy task either.● In the future a number of networkers will be writing code, if they like it.● But even more networkers will run the code, and maybe adapt it.