It's Intent API + RESTful + JSON
"The Intent API is a Northbound REST API that exposes specific capabilities of the Catalyst Center platform. The Intent API provides policy-based abstraction of business intent, allowing focus on an outcome rather than struggling with individual mechanisms steps. The RESTful Catalyst Center Intent API uses HTTPS verbs (GET, POST, PUT, and DELETE) with JSON structures to discover and control the network."
https://developer.cisco.com/docs/dna-center/#!preface
"These RESTful APIs simple, extensible, and secure. They support the standard HTTP verbs GET, POST, PUT and DELETE. A REST endpoint accepts and returns HTTPS messages that contain JavaScript Object Notation (JSON) documents. You can use any programming language to generate the messages and the JSON documents that contain the API methods."
https://developer.cisco.com/dnacenter/intentapis/
given answer is incorrect
- referred to as Intent API
- uses JSON exclusively
- RESTful API based on HTTP methods
The northbound APIs don´t support NETCONF, they are RESTful.
RESTCONF supports JSON ans XML
NETCONF supprts only XML
so northbound APIs uses JSON exclusively
The "southbound API" can configure traditional devices over Telnet, SSH, or SNMP.
It can configure newer devices via NETCONF and RESTCONF.
https://forum.huawei.com/enterprise/en/difference-between-the-restconf-and-netconf/thread/667259735243636736-667213852955258880#:~:text=Conclusion%3A-,RESTCONF,-supports%20the%20JSON
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