Add create map fields using API (#313)

Author: tothmano

apl/data-types/map-fields.mdx

@@ -4,6 +4,9 @@ description: 'This page explains what map fields are and how to query them.'
 tags: ['axiom documentation', 'documentation', 'axiom', 'map fields', 'object fields', 'data types']
 ---
 
+import ReplaceDomain from "/snippets/replace-domain.mdx"
+import ReplaceDatasetToken from "/snippets/replace-dataset-token.mdx"
+
 Map fields are a special type of field that can hold a collection of nested key-value pairs within a single field. You can think of the content of a map field as a JSON object.
 
 Axiom automatically creates map fields in datasets that use [OpenTelemetry](/send-data/opentelemetry) and you can create them yourself.
@@ -50,16 +53,36 @@ If an entity name has spaces (` `), dots (`.`), or dashes (`-`), you can only us
 
 For more information, see [Entity names](/apl/entities/entity-names#quote-identifiers).
 
-## Create map fields
+## Create map fields using UI
 
-To create a map field:
+To create a map field using the UI:
 
 1. Go to the Datasets tab.
 1. Select the dataset where you want to create the map field.
 1. In the top right of the fields list, click <img src="/doc-assets/icons/ellipsis-vertical.svg" className="inline-icon" alt="Vertical ellipsis icon" /> **More > Create map field**.
 1. In **Field name**, enter the full name of the field, including parent fields, if any. For example, `map_field_name`. For more information on syntax, see [Access properties of nested maps](#access-properties-of-nested-maps)
 1. Click **Create map field**.
 
+## Create map fields using API
+
+To create a map field using the Axiom API, send a request to the [Create map field](/restapi/endpoints/createMapField) endpoint. For example:
+
+```bash
+curl --request POST \
+  --url https://AXIOM_DOMAIN/v2/datasets/{DATASET_NAME}/mapfields \
+  --header 'Authorization: Bearer API_TOKEN' \
+  --header 'Content-Type: application/json' \
+  --data '{
+  "name": "MAP_FIELD"
+}'
+```
+
+<Info>
+<ReplaceDomain />
+<ReplaceDatasetToken />
+Replace `MAP_FIELD` with the name of the field that you want to change to a map field.
+</Info>
+
 ## View map fields
 
 To view map fields:

docs.json

@@ -627,6 +627,15 @@
               "restapi/endpoints/deleteDataset"
             ]
           },
+          {
+            "group": "Map field endpoints",
+            "pages": [
+              "restapi/endpoints/getMapFields",
+              "restapi/endpoints/createMapField",
+              "restapi/endpoints/updateMapFields",
+              "restapi/endpoints/deleteMapField"
+            ]
+          },
           {
             "group": "Monitor endpoints",
             "pages": [