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Validating a JSON instance against YANG

Problem: we want to know whether a JSON instance is compliant with a YANG model without using a NETCONF client/server.

The yanglint based strategy

Starting from 0.3, this tool allow you to choose between pyang or yanglint. In release 2.0 the support for pyang has been dropped. The first does not support Yang 1.1 (or better, the DSDL plugn we need). The latter supports Yang 1.1.
The instance document together with the YANG module(s) and other parameters are used to create a set of instructions (1) for yanglint. yanglint is invoked non-interactively and perform the validation.

JSON-file --------------+
                        |
YANG-module -------+    |
                   |    |
                   |    |
                   V    V
config|data -> yanglint-script ---> output
                    (1)        (2)