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.. _http-api:
########
HTTP-API
########
Enabling HTTP-API
-----------------
VyOS HTTP API can be enabled through the ``set service https api`` command.
.. code-block:: none
set service https api debug
set service https api keys id MY-HTTP-API-ID key MY-HTTP-API-PLAINTEXT-KEY
The local API process listens on localhost:8080, and nginx exposes it on all
virtual servers, by default. For the purpose of illustration below, we will
assume nginx is running at https://192.168.122.127.
One can limit proxying to specific listen addresses/ports/server-names by
defining a ``service https virtual-host <id>``, and setting ``service https
api-restrict virtual-host <id>``.
.. code-block:: none
set service https virtual-host example listen-address 192.168.122.127
set service https virtual-host example listen-port 44302
set service https virtual-host example server-name example.net
set service https api-restrict virtual-host example
In this example, nginx will proxy only those requests to
192.168.122.127:44302 or example.net:44302 (assuming the DNS record is
viable). Omitting any of listen-address, listen-port, or server-name, will
leave appropriate defaults in the nginx directive. Multiple instances of
``service https api-restrict virtual-host`` may be set.
Configuration mode requests
---------------------------
In our example, we are creating a dummy interface and assigning an address to
it:
.. code-block:: none
curl -k -X POST -F data='{"op": "set", "path": ["interfaces", "dummy", "dum1", "address"], "value": "203.0.113.76/32"}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/configure
The ``/configure`` endpoint takes a request serialized in JSON. The only HTTP
method it uses is POST. Request data is passed in the ``data=`` field and the
API key is passed in the ``key=`` field. Key identifiers from the config are
purely informational and the application doesn't need to know them, they only
appear in the server logs to avoid exposing keys in log files, you only need
the key itself.
Since internally there is no distinction between a path and a value, you can
omit the value field and include the value in the path like it's done in the
shell commands:
.. code-block:: none
curl -k -X POST -F data='{"op": "set", "path": ["interfaces", "dummy", "dum10", "address", "203.0.113.99/32"]}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/configure
Separate value field make the semantics more clear though, and also makes it
easier to create a command template once and update it with different values
as needed.
You can pass the ``set``, ``delete`` or ``comment`` command to it.
The API will push the command to the session and commit.
To retrieve a value:
.. code-block:: none
curl -k -X POST -F data='{"op": "returnValue", "path": ["interfaces", "dummy", "dum1", "address"]}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/retrieve
Use ``returnValues`` for multi-valued nodes.
Show config
"""""""""""
To retrieve the full config under a path:
.. code-block:: none
# curl -k -X POST -F data='{"op": "showConfig", "path": ["interfaces", "dummy"]}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/retrieve
It will return:
.. code-block:: none
{"success": true, "data": {"dummy": {"dum1": {"address": "203.0.113.76/32"}}}, "error": null}
Passing an empty path will return the full config:
.. code-block:: none
# curl -k -X POST -F data='{"op": "showConfig", "path": []}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/retrieve
Configuration management requests
---------------------------------
When saving or loading a configuration, the endpoint is ``/config-file`` and
you can pass the ``save`` or ``load`` command.
If you don't specify the file when saving, it saves to ``/config/config.boot``.
Here's an example:
.. code-block:: none
# curl -k -X POST -F key=MY-HTTP-API-PLAINTEXT-KEY -Fdata='{"op": "save", "file": "/config/config.boot"}' https://192.168.122.127/config-file
Image management requests
-------------------------
One may ``add`` or ``delete`` a system image using the endpoint ``/image``.
Here are the respective examples:
``add`` from ``url``. Here we use the URL of the latest rolling release:
.. code-block:: none
# curl -k -X POST -F data='{"op": "add", "url": "https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso"}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/image
``delete`` by image ``name``. For example:
.. code-block:: none
# curl -k -X POST -F data='{"op": "delete", "name": "1.3-rolling-202006070117"}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/image
To list the available system images by name, one may use the operational mode
request ``show`` discussed in the next section; in this setting it would be:
.. code-block:: none
# curl -k -X POST -F data='{"op": "show", "path": ["system", "image"]}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/show
Operational mode requests
-------------------------
It is possible to run ``show`` and ``generate`` commands:
Request:
.. code-block:: none
curl -k -X POST -F data='{"op": "generate", "path": ["wireguard", "default-keypair"]}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/generate
Response:
.. code-block:: none
{"success": true, "data": "", "error": null}
Request:
.. code-block:: none
curl -k -X POST -F data='{"op": "show", "path": ["wireguard", "keypairs", "pubkey", "default"]}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/show
Response:
.. code-block:: none
{"success": true, "data": "<some pubkey>=\n", "error": null}
Request:
.. code-block:: none
curl -k -X POST -F data='{"op": "show", "path": ["ip", "route"]}' -F key=MY-HTTP-API-PLAINTEXT-KEY https://192.168.122.127/show
Response:
.. code-block:: none
{"success": true, "data": "Codes: K - kernel route, C - connected, S - static, R - RIP,\n O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,\n T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,\n F - PBR, f - OpenFabric,\n > - selected route, * - FIB route, q - queued route, r - rejected route\n\nS>* 0.0.0.0/0 [210/0] via 192.168.100.1, eth0, 01:41:05\nC>* 192.168.0.0/24 is directly connected, eth1, 01:41:09\nC>* 192.168.100.0/24 is directly connected, eth0, 01:41:05\nC>* 203.0.113.76/32 is directly connected, dum1, 01:38:40\n", "error": null}
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