# RPC copy-one-to-many

This RPC is used to perform operations with a configuration from a single source path to multiple target paths.

RPC input contains the following:

type of operation: merge or replace
type of source datastore: CONFIGURATION or OPERATIONAL
type of target datastore: CONFIGURATION or OPERATIONAL
source path in RFC-8040 URI format
list of target paths in RFC-8040 URI format (target paths denote parent entities under the which configuration is copied)

Target datastore is an optional input field. By default, it is the same as source datastore. All other input fields are mandatory.

RPC output describes the result of the operation. If one path fails, the entire RPC fails and the datastore is not modified (i.e., all modifications are performed in a single atomic transaction).

# RPC examples

# Successful example

This example demonstrates merging the ethernet interface configuration from a single source to the following interfaces:

eth-0/2 (node dev02)
eth-0/3 (node dev02)
eth-0/100 (node dev03)
eth-0/200 (node dev03)

RPC Request
curl --location --request POST 'http://localhost:8181/rests/operations/subtree-manager:copy-one-to-many' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data-raw '{
    "input": {
        "source-datastore": "CONFIGURATION",
        "target-datastore": "OPERATIONAL",
        "source-path": "/network-topology:network-topology/topology=uniconfig/node=dev01/configuration/interfaces:interfaces/eth=eth-0%2F2/config",
        "target-paths": [
            "/network-topology:network-topology/topology=uniconfig/node=dev02/configuration/interfaces:interfaces/eth=eth-0%2F2",
            "/network-topology:network-topology/topology=uniconfig/node=dev02/configuration/interfaces:interfaces/eth=eth-0%2F3",
            "/network-topology:network-topology/topology=uniconfig/node=dev03/configuration/interfaces:interfaces/eth=eth-0%2F100",
            "/network-topology:network-topology/topology=uniconfig/node=dev03/configuration/interfaces:interfaces/eth=eth-0%2F200"
        ],
        "operation": "merge"
    }
}'

RPC Response, Status: 204

# Failed example

This example shows a failed copy-one-to-many RPC operation.

Both target paths are invalid, since the ext list schema nodes does not contain the interfaces:interfaces child container.

RPC Request
curl --location --request POST 'http://localhost:8181/rests/operations/subtree-manager:copy-one-to-many' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data-raw '{
    "input": {
        "source-datastore": "OPERATIONAL",
        "source-path": "/network-topology:network-topology/topology=uniconfig/node=vnf01/configuration/interfaces:interfaces",
        "target-paths": [
            "/network-topology:network-topology/topology=uniconfig/node=vnf02/configuration/interfaces:interfaces/ext=ext-0%2F2",
            "/network-topology:network-topology/topology=uniconfig/node=vnf02/configuration/interfaces:interfaces/ext=ext-0%2F3"
        ],
        "operation": "replace"
    }
}'

RPC Response, Status: 400
{
  "errors": {
    "error": [
      {
        "error-type": "application",
        "error-tag": "operation-failed",
        "error-message": "Failed to find schema node with identifier '(example-interfaces?revision=2019-12-01)interfaces' under: (example-interfaces?revision=2019-12-01)ext"
      }
    ]
  }
}