Question

You are writing a Python script to push an OSPF interface cost change to an IOS-XE device using RESTCONF. Your team requires that the script send the request in JSON, target only the single interface's OSPF configuration without affecting other OSPF settings on that interface, and fail gracefully if the resource path does not already exist. Which combination of HTTP method and header/behavior should the script use?

Accepted Answer

Use PATCH with Content-Type: application/yang-data+json to merge the cost leaf into the existing interface OSPF container

Answer

Use PUT with Content-Type: application/yang-data+json to replace the entire interface OSPF container with just the cost leaf

Answer

Use POST with Content-Type: application/yang-data+xml to create the cost leaf as a new child resource

Answer

Use GET with Accept: application/yang-data+json, modify the payload locally, and re-send it with the same GET method