additional 2.0 doc updates

content/references/http-websocket-apis/public-api-methods/server-info-methods/server_definitions.md

@@ -0,0 +1,108 @@
+---
+html: server_definitions.html
+parent: server-info-methods.html
+blurb: Retrieve an SDK-compatible `definitions.json`, generated from the `rippled` instance currently running.
+labels:
+  - Core Server
+---
+# server_definitions
+
+[[Source]](https://github.com/XRPLF/rippled/blob/master/src/ripple/rpc/handlers/ServerInfo.cpp#L43 "Source")
+
+The `server_definitions` command returns an SDK-compatible `definitions.json`, generated from the `rippled` instance currently running. You can use this to query a node in a network, quickly receiving the definitions necessary to serialize/deserialize its binary data.
+
+
+## Request Format
+An example of the request format:
+
+<!-- MULTICODE_BLOCK_START -->
+
+*WebSocket*
+
+```json
+{
+  "id": 2,
+  "command": "server_definitions"
+}
+```
+
+<!-- MULTICODE_BLOCK_END -->
+
+[Try it! >](websocket-api-tool.html#server_definitions)
+
+The request does not take any parameters.
+
+
+## Response Format
+
+An example of a successful response:
+
+<!-- MULTICODE_BLOCK_START -->
+
+*WebSocket*
+
+```json
+{
+  "id": 1,
+  "result": {
+    "FIELDS": [
+      [
+        "Generic",
+        {
+          "isSerialized": false,
+          "isSigningField": false,
+          "isVLEncoded": false,
+          "nth": 0,
+          "type": "Unknown"
+        }
+      ],
+      [
+        "Invalid",
+        {
+          "isSerialized": false,
+          "isSigningField": false,
+          "isVLEncoded": false,
+          "nth": -1,
+          "type": "Unknown"
+        }
+      ],
+      [
+        "ObjectEndMarker",
+        {
+          "isSerialized": true,
+          "isSigningField": true,
+          "isVLEncoded": false,
+          "nth": 1,
+          "type": "STObject"
+        }
+      ],
+      [
+        "ArrayEndMarker",
+        {
+          "isSerialized": true,
+          "isSigningField": true,
+          "isVLEncoded": false,
+          "nth": 1,
+          "type": "STArray"
+        }
+      ]
+      ...
+    ]
+  }
+}
+```
+
+<!-- MULTICODE_BLOCK_END -->
+
+To see a full `definitions.json` file and descriptions of the top-level fields, see: [Definitions File](serialization.html#definitions-file).
+
+
+## Possible Errors
+
+Any of the [universal error types][].
+
+
+<!--{# common link defs #}-->
+{% include '_snippets/rippled-api-links.md' %}
+{% include '_snippets/tx-type-links.md' %}
+{% include '_snippets/rippled_versions.md' %}